U.S. patent application number 10/958846 was filed with the patent office on 2005-04-28 for air blower with horizontal air outlet.
This patent application is currently assigned to Lasko Products, Inc.. Invention is credited to Boohar, Robert L., Dooley, Thomas J., Muchnik, Anatoly, Wilson, Rodney.
Application Number | 20050089409 10/958846 |
Document ID | / |
Family ID | 31977626 |
Filed Date | 2005-04-28 |
United States Patent
Application |
20050089409 |
Kind Code |
A1 |
Boohar, Robert L. ; et
al. |
April 28, 2005 |
Air blower with horizontal air outlet
Abstract
A portable, free standing air blower capable of generating a
user directed exhaust air stream is provided. The device includes
an air blower assembly located within an air director housing
rotatably coupled to a base about a horizontal axis of rotation.
The air blower device includes a pre-determined range of rotation
of the air director housing around the axis of rotation and the air
director housing is able to rotate about the axis of rotation
within the pre-determined range of rotation substantially unimpeded
by the base. Preferably, the at least one air outlet can be
positioned so as to direct a flow of exhaust air at an angle below
an imaginary plane through the air outlet and parallel to the
support surface.
Inventors: |
Boohar, Robert L.; (Gap,
PA) ; Dooley, Thomas J.; (Springfield, PA) ;
Muchnik, Anatoly; (West Chester, PA) ; Wilson,
Rodney; (Boothwyn, PA) |
Correspondence
Address: |
WOODCOCK WASHBURN LLP
ONE LIBERTY PLACE, 46TH FLOOR
1650 MARKET STREET
PHILADELPHIA
PA
19103
US
|
Assignee: |
Lasko Products, Inc.
|
Family ID: |
31977626 |
Appl. No.: |
10/958846 |
Filed: |
October 5, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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10958846 |
Oct 5, 2004 |
|
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10236265 |
Sep 5, 2002 |
|
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6821095 |
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Current U.S.
Class: |
417/234 |
Current CPC
Class: |
F24F 7/007 20130101;
F24F 2221/12 20130101; F04D 25/08 20130101 |
Class at
Publication: |
417/234 |
International
Class: |
F04B 053/00 |
Claims
What is claimed:
1. A portable, free standing air blower comprising: at least one
air director housing; at least one interior space defined by said
at least one air director housing; at least one air intake
passageway in said at least one air director housing allowing air
to enter said interior space as an intake air stream; at least one
air outlet in said at least one air director housing allowing air
to exit said interior space as an exhaust air stream; an axis of
rotation of said air director housing, said axis of rotation being
parallel to a support surface; a rotational perimeter of said air
director housing defined by the radial extents of said air director
housing being rotated about said axis of rotation of said air
director housing; a pre-determined range of rotation of said air
director housing; a blower assembly comprising, at least one motor
having at least one shaft, at least one air impeller connected to
said at least one shaft, said at least one air impeller at least
partially disposed within said interior space of said air director
housing; an axis of rotation of said at least one air impeller,
said axis of rotation of said at least one air impeller being
substantially parallel with said axis of rotation of said at least
one air director housing; an elevation of said axis of rotation of
said at least one air impeller relative to said support surface; a
controller for controlling a function of said air blower; a base in
contact with said support surface, said air director housing being
rotatably coupled to said base; wherein said air director housing
rotates within said pre-determined range of rotation with respect
to said base and said rotational perimeter of said air director
housing is unimpeded by said base during a rotation of said housing
through said pre-determined angular range; and wherein said
predetermined angular range of rotation permits said at least one
air outlet to be positioned so as to direct a flow of said exhaust
air stream at an angle below an imaginary plane through said air
outlet and parallel to said support surface.
2. The air blower of claim 1, wherein said base further comprises:
at least a pair of side-supports extending upward from said support
surface and being oriented substantially parallel to one another
and spaced apart by a pre-determined distance; a space between said
side-supports defined by said pair of side-supports and said
pre-determined distance; wherein said at least one air director
housing rotates within said space between said side-supports of
said base.
3. The air blower of claim 2, wherein said space further comprises:
a front opening extending upward from said support surface and
laterally between front edges of said at least a pair of side
supports; a rear opening extending upward from said support surface
and laterally between rear edges of said at least a pair of side
supports; wherein said at least one air director housing rotates
unimpeded from said front opening upward and backward through said
rear opening.
4. The air blower of claim 1, wherein said base further comprises:
a side-support in a substantially orthogonal orientation relative
to said support surface; a lower member connected to and supporting
said side-support, said lower member contacting said support
surface; wherein said at least one air director housing is
rotatably coupled to said side support of said base.
5. The air blower of claim 4, wherein said side support further
comprises: a front opening extending upward from said support
surface and laterally from a front edge of said side support; a
rear opening extending upward from said support surface and
laterally from a rear edge of said side support; wherein said at
least one air director housing rotates unimpeded from said front
opening upward and backward through said rear opening.
6. The air blower of claim 1, further comprising: at least one
saddle surface on said base; a mounting surface on said at least
one air director housing, said mounting surface substantially
conforming to said at least one saddle surface; wherein said a
mounting surface slidably engages said at least one saddle surface
allowing said at least one air director housing to rotate about
said axis of rotation of said air director housing.
7. A portable, free standing air blower comprising: a base
contacting a support surface, said base comprising: at least a pair
of side-supports oriented substantially parallel to one another and
spaced apart by a pre-determined distance; open peripheral edges of
said side-supports defined as peripheral edges of said
side-supports opposing one another from opposite extents of said
predetermined distance, said open peripheral edges extending from a
point on a front portion of said side-supports to a point on a rear
portion of said side-supports; an open peripheral area between said
side-supports defined by said open peripheral edges of said
side-supports and said pre-determined distance, said open
peripheral area being substantially unobstructed; at least one air
director housing rotatably coupled to said base, said at least one
air director housing comprising: at least one wall defining at
least one interior space; at least one air intake passageway in
said at least one wall allowing air to enter said interior space as
an intake air stream; at least one air outlet in said at least one
wall allowing air to exit said interior space as an exhaust air
stream; an axis of rotation of said air director housing, said axis
of rotation being parallel to a support surface; a blower assembly
at least partially disposed within said interior space of said at
least one air director housing, said blower assembly comprising: at
least one motor having at least one shaft; at least one air
impeller connected to said at least one shaft; an axis of rotation
of said at least one air impeller, said axis of rotation being
substantially parallel with said support surface; an elevation of
said axis of rotation of said at least one air impeller relative to
said support surface; a controller for controlling a function of
said air blower; a pre-determined angular range of rotation of said
at least one air director housing, wherein a portion of said air
director housing rotates within said open peripheral area between
said side-supports of said base substantially unimpeded by said
base; and wherein said point on said front portion of said
side-supports defining said open peripheral edges is at an
elevation between said elevation of said axis of rotation of said
at least one air impeller and said support surface.
8. The air blower of claim 7, wherein said axis of rotation of said
at least one air director housing is substantially orthogonal to
respective planes defined by said side-supports.
9. The air blower of claim 7, wherein said location on said rear
portion of said side-supports defining said open peripheral edges
is at an elevation between said elevation of said axis of rotation
of said at least one air impeller and said support surface.
10. The air blower of claim 7, further comprising at least one
lower member, wherein said at least one lower member extends
between and connects said pair of side-supports to one another.
11. A portable, free standing air blower comprising: a base
contacting a support surface, said base comprising: a side-support
in a substantially orthogonal orientation relative to said support
surface; said side-wall defining at least one interior space; a
lower member connected to and supporting said side-support, said
lower member contacting said support surface. at least one air
director housing coupled to said side-support of said base, said at
least one air director housing comprising: at least one interior
space; at least one air intake passageway allowing air to enter
said interior space; at least one air outlet allowing air to exit
said interior space as an exhaust air stream; a blower assembly at
least partially disposed within said interior space of said at
least one air director housing, said blower assembly comprising: at
least one motor having at least one shaft; at least one air
impeller connected to said at least one shaft; an axis of rotation
of said at least one air impeller, said axis of rotation being
substantially parallel with said lower member of said base; an
elevation of said axis of rotation of said at least one air
impeller relative to said support surface; a controller for
controlling a function of said air blower; and an axis of rotation
of said at least one air director housing, wherein said at least
one air director housing rotates within a pre-determined angular
range substantially unimpeded by said base and said axis of
rotation is substantially parallel to said lower member of said
base.
12. The air blower of claim 11, wherein a portion of said blower
assembly is at least partially disposed within said interior space
of said side-support of said base.
13. The air blower of claim 11, wherein said at least one air
director housing further comprises two air director housings, said
two air directing housing being independently rotatable relative to
one another.
14. A portable, free standing air blower comprising: at least one
air director housing comprising: at least one interior space; at
least one air intake passageway allowing air to enter said interior
space as an intake air stream; at least one air outlet allowing air
to exit said interior space as an exhaust air stream; a mounting
surface; a blower assembly at least partially disposed within said
interior space, said blower assembly comprising: at least one motor
having at least one shaft; at least one air impeller connected to
said at least one shaft; an axis of rotation of said at least one
air impeller, said axis of rotation being substantially parallel
with a support surface; an elevation of said axis of rotation of
said at least one air impeller relative to said support surface; a
controller for controlling a function of said blower assembly; a
base contacting said support surface, said air director housing
being rotatably coupled to said base, said base comprising: at
least one saddle surface substantially conforming to and slidably
engaging a portion of said mounting surface of said at least one
air director housing; and an axis of rotation of said air director
housing, wherein said at least one air director housing rotates
within a predetermined angular range substantially unimpeded by
said base, and said axis of rotation of said air director housing
is substantially parallel to said support surface.
15. The air blower of claim 14, further comprising a retainer
wherein said at least one air director housing is coupled to said
base and retained by said retainer.
16. The air blower of claim 15, wherein said retainer is a rolling
retainer.
17. The air blower of claim 15, further comprises mating features,
said mating features being disposed between and slidably coupling
said at least one air director housing to said saddle area of said
base.
18. The air blower according to claim 1, 7, 11 or 14, wherein said
axis of rotation of said at least one air director housing and said
axis of rotation of said at least one air impeller are
substantially parallel.
19. The air blower according to claim 1, 7, 11 or 14, wherein said
axis of rotation of said at least one air director housing and said
axis of rotation of said at least one air impeller are
substantially coaxial.
20. The air blower according to claim 1, 7, 11 or 14, wherein said
pre-determined range of rotation is between about 0 degrees and
about 360 degrees.
21. The air blower according to claim 1, 7, 11 or 14, wherein said
pre-determined range of rotation is between about 0 degrees and
about 270 degrees.
22. The air blower according to claim 1, 7, 11 or 14, wherein said
pre-determined range of rotation is between about 0 degrees and
about 180 degrees.
23. The air blower according to claim 1, 7, 11 or 14, wherein said
pre-determined range of rotation is between about 0 degrees and
about 90 degrees.
24. The air blower according to claim 1, 7, 11 or 14, wherein said
predetermined angular range of rotation permits said at least one
air outlet to be positioned so as to direct a flow of said exhaust
air stream substantially orthogonal to said support surface.
25. The air blower according to claim 1, 7, 11 or 14, further
comprising detents disposed between said base and said at least one
air director housing, wherein said detents provide a plurality of
positive location stops for a controlled rotation of said at least
one air director housing with respect to said base.
26. The air blower according to claim 1, 7, 11 or 14, wherein said
controller is a remote controller.
27. The air blower according to claim 1, 7, 11 or 14, wherein said
controller is mounted to said base.
28. The air blower according to claim 1, 7, 11 or 14, wherein said
controller is mounted to said at least one air director
housing.
29. The air blower of claim 28, wherein said blower assembly is
mounted to said at least one air director housing.
30. The air blower of claim 1, 7, 11 or 14, further comprising
control wires that connect said controller to said blower assembly,
wherein said control wires remain substantially stationary with
respect to said controller and said blower assembly during a
rotation of said at least one air director housing.
31. The air blower according to claim 1, 7, 11 or 14, further
comprising: an overall height of said air blower defined as the
distance from said support surface to a furthest extent of said air
blower measured substantially orthogonal to said support surface
when said air director housing is rotated to position said air
outlet for directing said exhaust air stream forward and
substantially horizontal with said support surface; an overall
width of said air blower defined by a dimension that would
encompass the extents of said air blower measured parallel to said
axis of rotation of said at least one air impeller; an overall
depth of said air blower defined by a dimension that would
encompass the extents of said air blower measured substantially
orthogonal to said axis of rotation of said at least one air
impeller.
32. The air blower of claim 31, further comprising an overall
horizontal aspect ratio, said overall horizontal aspect ratio being
defined as said overall width being greater than said overall
height, wherein said overall horizontal aspect ratio is greater
than 1.1 to 1.
33. The air blower of claim 31, further comprising a planar usage
area, said planar usage area being defined by said overall width
multiplied by said overall depth, wherein said planar usage area is
about 80 square inches or less.
34. The air blower of claim 31, wherein said overall height is
about 10 inches or less.
35. The air blower of claim 31, wherein said overall height is
about 6 inches or less.
36. The air blower of claim 31, wherein said elevation of said axis
of rotation of said at least one air impeller relative to said
support surface is less than about 66% of said overall height of
said air blower.
37. The air blower of claim 31, further comprising a shipping
configuration wherein said air blower is assembled substantially
complete and stored in a shipping package.
38. The air blower of claim 37, further comprising dimensions of
said shipping package defining a package height, a package width,
and a package depth, wherein all of said dimensions of said
shipping package are less than 115% of said corresponding overall
height, said corresponding overall width and said corresponding
overall depth, respectively, of said air blower.
39. The air blower according to claim 1, 7, 11 or 14, wherein said
elevation of said axis of rotation of said at least one air
impeller relative to said support surface is about 4 inches or
less.
40. The air blower according to claim 1, 7, 11 or 14, further
comprising a horizontal aspect ratio of said air outlet, said
horizontal aspect ratio defined by a width of said air outlet being
greater than a height of said air outlet, wherein said width of
said air outlet is measured parallel to said axis of rotation of
said impeller and said height of said air outlet is measured
substantially orthogonal to said width of said air outlet from an
extent of said air outlet to an opposite extent of said air
outlet.
41. The air blower of claim 40, wherein said horizontal aspect
ratio of said air outlet is about 2:1 or greater.
42. The air blower of claim 40, further comprising an area of said
air outlet defined by said width of said air outlet multiplied by
said height of said air outlet, wherein said area of said air
outlet is about 15 square inches or less.
43. The air blower of claim 40, further comprising an area of said
air outlet defined by said width of said air outlet multiplied by
said height of said air outlet, wherein said area of said air
outlet is between about 8 square inches and about 14 square
inches.
44. The air blower according to claim 1, 7, 11 or 14, wherein less
than about 25% of a circumference of said at least one air impeller
is visible through said air outlet.
45. The air blower according to claim 1, 7, 11 or 14, wherein said
at least one air impeller further comprises a diameter and an axial
length, and an elongated aspect ratio defined by said axial length
being greater than said diameter of said at least one air
impeller.
46. The air blower of claim 45, wherein said diameter of said at
least one air impeller is about 4.5 inches or less.
47. The air blower of claim 45, wherein said diameter of said at
least one air impeller is between about 1.5 inches and about 4
inches.
48. The air blower of claim 45, wherein said elongated aspect ratio
of said at least one air impeller is about 1.5:1 or greater.
49. The air blower according to claim 1, 7, 11 or 14, wherein said
at least one air director housing comprises a scroll shape.
50. The air blower according to claim 1, 7, 11 or 14, further
comprising at least one air intake grill located proximate said at
least one air intake passageway.
51. The air blower according to claim 1, 7, 11 or 14, further
comprising at least one protective grill located proximate said air
outlet, wherein said protective grill has at least one grill
element, said at least one grill element at least one of
substantially directs and/or substantially forms said exhaust air
stream.
52. The air blower of claim 51, wherein said at least one grill
element further comprises at least one louver to at least one of
substantially focus and/or substantially diffuse said exhaust air
stream.
53. The air blower of claim 52, wherein said at least one louver is
adjustable allowing said exhaust air stream to be adjusted between
a substantially focused exhaust air stream and a substantially
diffused exhaust air stream.
54. The air blower according to claim 1, 7, 11 or 14, wherein said
air enters said interior space along a first flow path and said
exhaust air stream exits said interior space along a second flow
path, said first flow path being substantially orthogonal to said
second flow path.
55. The air blower of claim 54, wherein said first flow path and
said axis of rotation of said at least one air impeller are
substantially parallel.
56. The air blower according to claim 1, 7, 11 or 14, wherein said
blower assembly further comprises, at least one motor having two
opposing shafts and two air impellers, said two air impellers
connected each respectively to one of said two opposing shafts.
57. The air blower according to claim 1, 7, 11 or 14, wherein said
blower assembly further comprises a centrifugal blower.
58. The air blower according to claim 1, 7, 11 or 14, wherein said
blower assembly further comprises, a transverse blower.
59. The air blower according to claim 1, 7, 11 or 14, wherein said
motor is a DC electric motor.
60. The air blower according to claim 1, 7, 11, or 14, wherein said
base further comprises a clamping mechanism to attach said air
blower to an edge of said support surface.
61. The air blower according to claim 1, 7, 11 or 14, wherein said
base further comprises features allowing said air blower to be
mounted to a vertical or inverted surface.
62. The air blower according to claim 1, 7, 11 or 14, further
comprising at least one of a clock, an auxiliary plug, a circuit
interrupter, a pencil holder and/or a storage compartment.
63. The air blower according to claim 7,11 or 14, wherein said
predetermined angular range of rotation permits said at least one
air outlet to be positioned so as to direct a flow of said exhaust
air stream below parallel to said support surface and downward
toward said support surface.
Description
CROSS-REFERENCE APPLICATIONS
[0001] This application is a Continuation-in-Part of application
Ser. No. 10/236,265 filed Sep. 5, 2002.
FIELD OF THE INVENTION
[0002] This invention relates generally to air circulation devices
for use in a household, office, or work area environment. More
specifically, the present invention relates to an air circulation
device having an air director housing that pivots with respect to a
support surface about a horizontal axis of rotation.
BACKGROUND OF THE INVENTION
[0003] Various air movement devices have been utilized to generate
an air stream. Many of these devices have been used to specifically
create an air stream for the purpose of cooling a user.
[0004] The normal use of a conventional device is to provide a
cooling sensation to the user by passing a current of air generated
by the air moving device over the skin of an individual. The
current of air that passes over an individual serves to cool the
user by increasing the convective heat loss of the body through the
natural evaporative process of moisture (e.g. sweat) on the skin.
Typically, the greater the air flow, the greater the amount of
evaporation, and hence the greater the cooling sensation.
[0005] Many conventional devices are positioned either on the
floor, a tabletop, or desktop. The area that the air stream effects
is fixed based on the air stream shape being exhausted by the
device. One disadvantage of conventional devices primarily used on
a table or desk top is the shape of the air pattern produced. A
conventional device that uses an axial fan blade creates an air
stream that is conical and increases in diameter as the distance
traveled by the air stream increases. As the diameter of the air
stream increases the air stream will begin to disturb object on the
desk or table top. As a result, loose objects, such as paper, may
be moved as the air stream passes. This may not be desirable as
these objects can be dislodged from their intended place.
Furthermore dust, pollen or dander on a mounting surface within the
air stream will be disturbed to airborne. These dust and debris can
be detrimental to, for example, respiratory conditions.
[0006] Another disadvantage of a conventional device that uses an
axial fan blade is the visible distraction that the rotation of the
axial fan blade creates. Further these conventional devices often
require a height that tends to impair the ability to see the area
around the device. In addition, the required height makes these
devices more susceptible to accidental tip-over. The instability of
these devices is further exacerbated by the need to locate the
motor of the device at an elevated position above the mounting
surface. The elevation of the motor, which accounts for a
substantial portion of the total weight of the device, raises the
center of gravity and contributes to instability. The required
height of a conventional device using an axial fan blade will often
dictate that a large base be used for stabilization. The use of a
large base utilizes area on the mounting surface (desk or table
top) that could otherwise be used as work space.
[0007] Another disadvantage a device using an axial fan blade is
the requirement that the customer partially assemble the unit. The
partial assembly of the unit is required to allow the shipping
package to remain small in an attempt to minimize transportation
cost.
SUMMARY OF THE INVENTION
[0008] The present invention provides an air blower device that
overcomes one or more of the shortcomings of the prior art.
Described is an exemplary air blower device for use on a mounting
surface (desk or table top) that allows the air stream to be
distributed along a path parallel with the mounting surface
minimizing the disturbance to object on the mounting surface. The
air blower device would ideally have an air outlet with a
horizontal aspect ratio.
[0009] The height of the improved air blower device would be
limited to increase the stability and limit the impedance of visual
inspection of the mounting surface around the air blower device.
The location of the motor within the device would be low with
respect to the mounting surface resulting in a lower center of
gravity of the device, thus enhancing it's stability. The movement
of the fan blade of the improved air blower device would also be
substantially hidden from view so as to reduce it's distractive
qualities.
[0010] The improved air blower device would also have the ability
to allow a user to direct the air stream where desired. Preferably
the improved air blower device would be fully assembled while
requiring a shipping package that will promote efficient
transportation. The present invention is an improved air blower
device that combines one or more of these characteristics and
advantages for the user and the manufacturer.
[0011] According to one aspect of the invention, the device is a
portable, free standing air blower including at least one air
director housing defining at least one interior space and a base
utilized to contact a support surface.
[0012] According to another aspect of the invention, the air
director housing is rotatably coupled to the base and rotates with
respect to the support surface.
[0013] According to another aspect of the invention, the device
includes a blower assembly at least partially disposed within the
interior space of the air director housing. The air blower assembly
includes at least one motor having at least one shaft and at least
one air impeller connected to the shaft.
[0014] According to another aspect of the invention, the at least
one air impeller has an axis of rotation that is substantially
parallel with an axis of rotation of the at least one air director
housing. The axis of rotation of the at least one air impeller is
located at an elevation relative to the support surface. In another
embodiment, the axis of rotation of the air director housing and
the axis of rotation of the air impeller can be substantially
coaxial.
[0015] According to another aspect of the invention, the air
director housing includes at least one air intake passageway which
allows air to enter the air director housing and at least one air
outlet which allows air to exit the air director housing as an
exhaust air stream.
[0016] According to another aspect of the invention, the device
includes an axis of rotation of the air director housing and a
pre-determined range of rotation of the air director housing around
the axis of rotation.
[0017] According to another aspect of the invention, the air
director housing is able to rotate about the axis of rotation
within the pre-determined range of rotation substantially unimpeded
by the base.
[0018] According to another aspect of the invention, the
predetermined angular range of rotation permits the at least one
air outlet to be positioned so as to direct a flow of the exhaust
air stream at an angle below an imaginary plane through the air
outlet and parallel to the support surface.
[0019] In one embodiment, the pre-determined range of rotation is
between about 0 degrees and about 360 degrees. In another
embodiment, the pre-determined range of rotation is between about 0
degrees and about 270 degrees. In another embodiment, the
pre-determined range of rotation is between about 0 degrees and
about 180 degrees. In yet another embodiment, the pre-determined
range of rotation is between about 0 degrees and about 90
degrees.
[0020] According to another aspect of the invention, detents are
disposed between the base and the air director housing. The detents
provide a plurality of positive location stops for a controlled
rotation of the air director housing with respect to the base.
[0021] According to yet another aspect of the invention, the base
further includes at least a pair of side-supports extending upward
from the support surface and oriented substantially parallel to one
another and spaced apart by a pre-determined distance defining a
space between the side-supports where the air director housing is
located and rotates.
[0022] According to another aspect of the invention, the base
further includes a front opening extending upward from the support
surface and laterally between the front edges of the pair of side
supports and a rear opening extending upward from the support
surface and laterally between the rear edges of the side supports
and the air director housing rotates unimpeded from the front
opening upward and backward through the rear opening.
[0023] According to another aspect of the invention, the base
further includes an open peripheral area defined by open peripheral
edges of the pair of side-supports extending from a point on the
front portion of the side-supports to a point on the rear portion
of the side-supports and the pre-determined distance between the
pair of side supports. A portion of the air director housing is
able to rotate through the open peripheral area unimpeded by the
base.
[0024] According to another aspect of the invention, the base
further includes a side-support in a substantially orthogonal
orientation relative to the support surface defining an interior
space within the side support and a lower member connected to and
supporting the side-support. The air director housing is rotatably
coupled to the side support of the base.
[0025] According to yet another aspect of the invention, the base
further includes at least one saddle surface and the air director
housing further includes a mounting surface which substantially
conforming to the saddle surface on the base and the mounting
surface is slidably engaged with the saddle surface allowing the
air director housing to rotate with respect to the base.
[0026] According to yet another aspect of the invention, a retainer
is provided between the base and the air director housing, wherein
the air director housing is coupled to the base and held by the
retainer. Further, the retainer may include a rolling retainer.
[0027] According to yet another aspect of the invention, mating
features are disposed between and slidably couple the air director
housing to the saddle area of the base.
[0028] According to yet another aspect of the invention, the air
blower includes a controller for controlling a function of the air
blower. The controller can be a remote controller. The controller
can be mounted to the base or the air director housing.
[0029] According to yet another aspect of the invention, the
control wires that connect the controller to the blower assembly
remain substantially stationary with respect to the controller and
the blower assembly during a rotation of the air director
housing.
[0030] According to yet another aspect of the invention, an overall
height of the air blower is defined as the distance from the
support surface to a furthest extent of the air blower measured
orthogonal to the support surface when the air director housing is
rotated to position the air outlet to direct the exhaust air stream
forward and parallel to the support surface.
[0031] According to another aspect of the invention, an overall
width of the air blower is defined by a dimension that would
encompass the extents of the air blower measured parallel to the
axis of rotation of the air impeller.
[0032] According to another aspect of the invention, an overall
depth of the air blower is defined by a dimension that would
encompass the extents of the air blower measured orthogonal to the
axis of rotation of the air impeller.
[0033] According to yet another aspect of the invention, the air
blower includes an overall horizontal aspect ratio greater than 1.1
to 1, defined as the overall width being greater than the overall
height.
[0034] According to another aspect of the invention, the air blower
includes a planar usage area of about 80 square inches or less,
defined by the overall width multiplied by the overall depth.
[0035] According to another aspect of the invention, the overall
height is about 10 inches or less.
[0036] According to another aspect of the invention, the overall
height is about 6 inches or less.
[0037] According to yet another aspect of the invention, the
elevation of the axis of rotation of the air impeller relative to
the support surface is less than about 66% of the overall height of
the air blower.
[0038] According to another aspect of the invention, the device
includes a shipping configuration where the air blower is assembled
substantially complete and stored in a shipping package and all of
the dimensions of the shipping package are less than 115% of the
corresponding overall height, overall width and overall depth,
respectively, of the air blower.
[0039] According to another aspect of the invention, the elevation
of the axis of rotation of the air impeller relative to the support
surface is about 4 inches or less.
[0040] According to another aspect of the invention, the air outlet
has a horizontal aspect ratio of about 2:1 or greater, defined as
the width of the air outlet being greater than the height of the
air outlet. The width of the air outlet measured parallel to the
axis of rotation of the impeller and the height of the air outlet
measured substantially orthogonal to said width of the air outlet
from one extent to an opposite extent of said air outlet.
[0041] According to another aspect of the invention, The air outlet
includes an area of about 15 square inches or less defined by the
width of the air outlet multiplied by the height of said air
outlet.
BRIEF DESCRIPTION OF THE DRAWINGS
[0042] FIG. 1 is a perspective view of an exemplary embodiment of a
portable air blower with horizontal air outlet;
[0043] FIG. 2 illustrates an exploded view of the exemplary
embodiment of FIG. 1;
[0044] FIGS. 3A, 3B and 3C are side, top and front views,
respectively, of an exemplary embodiment of the air blower device
illustrating air patterns of the device;
[0045] FIG. 3D is a cross sectional side view of the exemplary
embodiment of FIG. 3A, illustrating rotational aspects of the
device;
[0046] FIGS. 4A and 4B are perspective views of an exemplary
embodiment of the air blower device illustrating dimensional and
packaging aspects;
[0047] FIGS. 5A and 5B are perspective views of exemplary
embodiments of the blower assembly of the air blower device;
[0048] FIG. 6 is another exemplary embodiment of the portable air
blower;
[0049] FIG. 7 is another exemplary embodiment of the portable air
blower;
[0050] FIG. 8 is another exemplary embodiment of the portable air
blower; and
[0051] FIG. 9 is another exemplary embodiment of the portable air
blower.
DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
[0052] The following is a description of a portable, free standing
air blower. Portable being defined as having the ability to be
carried or moved with ease. Free standing being defined as having
the ability to remain stable and upright without external
restraints. The portable air blower has an air outlet with a
horizontal aspect ratio. Also described is a limited height of the
portable air blower which increases the stability and decreases
it's impedance to visual inspection of a mounting surface. The
motor of the device is located low with respect to the mounting
surface thus lowering the center of gravity and further increasing
the stability of the device. The impeller of the portable air
blower is substantially hidden within the structure of the device
so as to reduce the visual distractive qualities of the rotation of
the impeller. Also described are various rotational features that
allow the user to direct the air stream to a desired location. The
overall dimensions of the portable air blower described herein
facilitates the use of a shipping package for a fully assembled
device that will promote efficient transportation; lowering the
cost and simplifying the set-up and use of the device for the end
user.
[0053] FIG. 1 illustrates an exemplary embodiment of the portable
air blower 100 with horizontal air outlet 124. As shown in FIG. 1
portable air blower 100 includes base 110, air director housing
120, and blower assembly 130. Base 110 is defined by the portion of
portable air blower 100 that supports air director housing 120
above a support surface. Base 110 may include, as in this example
side-support 112 and side-support 114 spaced apart a predetermined
distance creating space 115. Air director housing 120 as shown, may
be coupled rotatably between side-support 112 and side-support 114
within space 115. Also shown is base cross member 116. It is
contemplated that base 110 may be constructed to be an integral
part of another component of portable air blower 100, for example
air director housing 120.
[0054] Air director housing 120 is mounted to base 110 being either
rotatable or fixed with respect to base 110. In the example shown
in FIG. 1, base 110 is designed minimize it's impedance to the
rotational range of air director housing 120. It is also
contemplated that portable air blower 100 may include such
mechanisms (not shown) that would oscillate air director housing
120 with respect to a support surface (not shown). Air director
housing 120 defines interior space 122.
[0055] Located within interior space 122 of air director housing
120 is blower assembly 130. Air blower assembly 130 is used to draw
air through air intake apertures 112a and 114a into interior space
122 and discharge an exhaust air stream through horizontal air
outlet 124. Air intake apertures may be covered, as shown, by air
intake covers 118 and 119.
[0056] Air intake covers 118 and 119 may include air intake grill
portions 118a and 119a. Intake grill portions 118a and 119a of air
intake covers 118 and 119 respectively allow air to enter blower
assembly 130 through air intake covers apertures 112a and 114a
located for example in side-support 112 and side-support 114 of
base 110. Intake grill portions 118a and 119a also help to reduce
and/or prevent foreign objects from entering air director housing
120.
[0057] Protective grill 126 is located proximate horizontal air
outlet 124. As shown, protective grill 126 includes grill elements
127a, 127b and 127c. Protective grill 126 helps to impede the
penetration of objects (not shown) into interior space 122 of air
director housing 120. This protects blower assembly 130 from
damage. Protective grill 126 can also help to direct the exhaust
air stream generated by blower assembly 130 and discharged from
interior space 122 through horizontal air outlet 124. Preferably,
protective grill 126 is movable and can be used to direct the flow
of air being discharged to a desired location. Preferably,
protective grill is positionable up and down and/or side to
side.
[0058] Moreover, it is contemplated that protective grill 126 may
be designed so as to facilitate either focusing the discharged
exhaust air stream or diffusing the discharged air stream over a
large area. It is also contemplated that protective grill 126 may
be designed with movable mechanisms, such as for example louvers,
(not shown) allowing the user the option of either concentrated or
diffuse discharged of the air stream.
[0059] FIG. 2 is an exploded perspective view of exemplary portable
air blower 100. As shown in FIG. 2, base 110 includes side-supports
112 and 114. Base 110 may also include a cross member 116. Cross
member 116 may provide additional structural rigidity, may include
a tray or storage area, may include an oscillation or rotation
mechanism, or may include controls for controlling an operation of
the air blower 100. Side-support 112 and side-support 114 are
spaced apart a predetermined distance defining space 115. Space 115
receives air director housing 120 when air director housing 120 is
coupled rotatably between side-support 112 and side-support
114.
[0060] Also shown in FIG. 2 are open peripheral edges 113a and 113b
of side-supports 112 and 114 respectively. Open peripheral edges
113a and 113b are defined as opposing peripheral edges of
side-supports 112 and 114 respectively that are open with reference
to one another, i.e. having no obstruction between the opposing
lengths of open peripheral edges 113a and 113b. Open peripheral
edges 113a and 113b extend from a point on a front portion of
side-supports 112 and 114 respectively, to a point on a rear
portion of side-supports 112 and 114 respectively. Open peripheral
edges 113a, 113b and the pre-determined distance between open
peripheral edges 113a, 113b define open peripheral area 113 of base
110. In FIG. 2 open peripheral area 113 is indicated by arrows 113c
and 113d.
[0061] As shown in FIG. 2, side-support 112 and side-support 114
may also include air intake aperture 112a and air intake aperture
114a, respectively. Air intake apertures 112a, 114a allow air to
pass through the side supports 112, 114 and enter interior space
122 and blower assembly 130 through air intake passageways 129 and
128 respectively of air director housing 120. As shown in this
embodiment air intake passageways 129 and 128 fluidly connect air
intake apertures 112a and 114a to blower assembly 130.
[0062] Also shown are air intake covers 118 and 119. Air intake
covers 118 and 119 include intake grill portions 118a and 119a
respectively. Intake grill portions 118a and 119a may be a
plurality of openings that allow air to pass through intake covers
118, 119, through air intake apertures 112a, 114a, through air
intake passageways 128, 129 and into interior space 122 and air
blower assembly 130. Intake grill portions 118a and 119a of air
intake covers 118, 119 also serve to impede the penetration of
objects (not shown) into interior space 122 of air director
housings 120 thereby protecting blower assembly 130 from
damage.
[0063] Blower assembly 130 is disposed within air director housing
120. As shown in FIGS. 2, 5A and 5B, blower assembly 130 includes a
motor 134 having a motor output shaft 135, an air impeller 132
coupled to the motor output shaft 135, and a mounting bracket 136
for mounting motor 134 to the air director housing 120. It is
contemplated that impeller 132 may be constructed as a single unit
as well as multiple portions.
[0064] As shown in the embodiment of FIG. 5A, impeller 132 is
constructed as a single unit. As shown, motor 134 is located at one
end of air impeller 132. Air impeller 132 is mounted to the output
shaft 135 of motor 134. Mounting bracket 136 is used to mount motor
134 to the air director housing 120.
[0065] As shown in the embodiment of FIGS. 2 and 5B, blower
assembly 130 may includes a split impeller 132 having two portions
132a, 132b. As shown, motor 134 includes two motor output shafts
135 extending in opposite directions from motor 134. Impeller
portion 132a and impeller portion 132b are mounted to opposing
motor shafts 135.
[0066] Motor 134 is mounted to air director housing 120 via motor
mounting bracket 136. Motor 134 rotates impeller 132. The rotation
of impeller 132 about axis of rotation 342 induces air to enter
interior space 122 of air director housing 120 and blower assembly
130 through intake grill portions 118a and 119a of air intake
covers 118 and 119 and through air intake apertures 112a and 114a
and through air intake passageways 128 and 129. The air is then
discharged from air blower 100 through horizontal air outlet
124.
[0067] Blower assembly 130 in this embodiment is a centrifugal type
blower, however it is contemplated that other types of blowers may
be used, such as for example, a transverse type blower.
[0068] Motor 134 of blower assembly may be an electric motor using
AC current or DC current. It is contemplated that portable air
blower 100 using a DC current motor 134 may use various power
sources, for example: batteries and the electrical systems of
automobiles, boats, buses, etc.
[0069] Air director housing 120 defines interior space 122. As
shown in FIG. 2, air director housing 120 includes air intake
passageways 128, 129 and horizontal air outlet 124. Blower assembly
130 is disposed within interior space 122. Air director housing 120
may be formed as a single piece or more than one piece. As shown in
FIG. 2, air director housing 120 is a spilt housing having a front
portion 120a and a rear portion 120b.
[0070] In the exemplary embodiment, air director housing 120 is
rotatably connected to base 110. As shown, air director housing 120
is rotatably about a horizontal axis of rotation 340. Preferably,
the horizontal axis of rotation 340 of air director housing 120 and
the axis of rotation 320 of air impeller 132 are coaxial. In
another embodiment, the exhaust air stream can be rotated about a
vertical axis of rotation, by for example, rotating the air
director housing relative to the mounting surface and/or using
movable air directing vanes at the horizontal air outlet 124.
[0071] As shown, flanges 123 located around air intake passageways
128 and 129 mate with surface 112b and surface 114b of base 110
allowing rotation of air director housing 120 with respect to base
110. Detents 117 may be included, for example in base 110 to
correspond to a feature (not shown) in air director housing 120 to
help control the rotational characteristics of air director housing
120 relative to base 110.
[0072] As shown, the design and construction of air director
housing 120 incorporates features to facilitate the proper function
of blower assembly 130. The incorporation of features within the
design and construction of air director housing 120 eliminates
and/or minimizes the need for extra parts and decreases
manufacturing complications and costs. Such features may include,
for example a scroll shape. The scroll shape in this example is
defined as the shape of housing 120 required to increase the radial
distance from impeller 132 to housing 120 within interior space
122. In this example this distance increases in the direction of
rotation of impeller 122. Air director housing 120 may be
constructed from such materials as stamped metal or molded plastic.
Utilizing such materials facilitates the ability to incorporate
such features within air director housing 120.
[0073] Protective grill 126 can be formed as part of air director
housing 120 or as a separate piece that is attached to air director
housing 120. As shown in FIG. 2, protective grill 126 is an
integral part of air director housing 120, specifically front
portion 120a.
[0074] Also shown in FIG. 2 is motor control assembly 140. Motor
control assembly 140, in this example includes control knob 144 and
switch 142 mounted to air director housing 120, specifically rear
portion 120b. It is contemplated that motor control assembly 140
may include electronics and/or a remote device. Control wires, (not
shown) connect motor control assembly 140 to blower assembly 130.
As shown blower assembly 130 and motor control assembly 140 are
both mounted to air director housing 120, specifically rear portion
120b. One advantage to mounting blower assembly 130 and motor
control assembly 140 to air director housing 120 is that control
wires, (not shown) are stationary relative to the components and
thereby avoid flexing when air director housing 120 is rotated. The
ability to avoid flexing of control wires helps to avoid or reduce
wire breakage caused by, for example material fatigue over
time.
[0075] FIG. 2 also illustrates mounting component 150. The
exemplary embodiment illustrates mounting component 150 in this
example includes foot pads. As shown mounting component 150 would
allow portable air blower 100 to mount to a substantially flat
surface, such as for example a desk or a table top. Preferably,
mounting component 150 is made of a material that frictionally
engages the mounting surface, such as for example a rubber
material.
[0076] It is contemplated that mounting component 150 may
alternatively include clamping mechanisms, grips and other
components that would allow air blower 100 to securely mount to the
edge of mounting surface. It is also contemplated that mounting
component 150 may include features that would allow portable air
blower 100 to be mounted to a substantially vertical or inverted
surface, such as for example a wall, ceiling, desk side or below a
desk or table top. Mounting component 150 may be a separate
component or an integral part or feature with another component,
such as for example base 110.
[0077] FIGS. 3A, 3B and 3C are front, top and side views,
respectively, of an exemplary embodiment of portable air blower 100
illustrating air flow patterns generated. As shown in FIGS. 3A and
3B, intake air 300 is drawn into interior space 122 of air director
housing 120 by the rotational movement of blower assembly 130.
Blower assembly 130 imparts energy to the flow of air and generates
exhausts air stream 302. As shown in FIGS. 3B and 3C, exhaust air
stream exits from interior space 122 of air director housing 120
via horizontal air outlet 124.
[0078] As shown in FIG. 3C, exhaust air stream 302 in this position
flows substantially parallel to mounting surface 310. Mounting
surface 310 may be as in this example a desk or tabletop. Because
exhaust air stream 302 flows substantially parallel to mounting
surface 310 object such as papers 312, pencils 314 and other
materials, (not shown) are not disturbed from their intended
place.
[0079] In the embodiment shown, air director housing 120 rotates
about horizontal axis of rotation 340 of blower assembly 130. The
use of rotational movement (shown in FIG. 3C by arrow 320) allows
adjustment of the horizontal outlet 124 of air director housing 120
up and down and further elevates exhaust air stream 302 above
mounting surface 310.
[0080] Referring again to FIG. 3B exhaust air stream 302 also exits
air director housing 120 in a linear fashion substantially within
focused air stream boundaries 330a and 330b. It is contemplated
that louvers, (not shown) could be incorporated to allow air stream
302 to exit air director housing 120 within diverging air stream
boundaries 332a and 332b. It is also contemplated that louvers,
(not shown) could be manually or automatically adjusted to allow
exhaust air stream 302 to exits air director housing 120 as either
a focused air stream, (between air stream boundaries 330a and 330b)
or a diffuse air stream, (between diverging air stream boundaries
332a and 332b).
[0081] As shown in FIGS. 3A and 3B, intake air 300 is drawn into
interior space 122 of air director housing 120 along a first flow
path. As shown in FIGS. 3B and 3C, exhaust air stream 302 exits
from interior space 122 of air director housing 120 along a second
flow path. In one embodiment the first flow path is substantially
orthogonal to the second flow path. As shown in FIG. 3A exhaust air
stream 302 exits from interior space 122 of air director housing
120 at an elevation above axis of rotation 342 of impeller 132. An
advantage regarding the elevation of exhaust air stream 302
relative to axis of rotation 340 as described, allows impeller 132
of portable air blower 100 to be substantially hidden within the
structure of the device. This reduces the distraction experienced
by the user due to the visible rotation of impeller 132. The
reduction of distraction experienced by the user is advantageous to
a work environment, especially when air blower 100 is used on a
desk or table top in close proximity to the user. In one embodiment
less than about 25% of the total circumference of impeller 132 is
visible to the user.
[0082] As shown in FIG. 3A, axis if rotation 340 of air director
housing 120 and the axis of rotation 342 of impeller 132 may be
coaxial. Axis if rotation 342 of impeller 132 is located at a low
elevation relative to mounting surface 310 allowing the mass of
blower assembly 130 to remain lower with respect to mounting
surface 310 of portable air blower 100. Maintaining the mass of
blower assembly 130 low as described lowers the center of gravity
of the device, thereby increasing the stability of the device. In
one embodiment the elevation of axis of rotation 342 of impeller
132 relative to mounting surface 310 is less than about 4
inches.
[0083] Also shown in FIG. 3A is an overall height "OAH" of portable
air blower 100. "OAH" is defined as the dimension from mounting
surface 310 to a highest vertical extent of portable air blower 100
when air director housing 120 is rotated to position horizontal
outlet 124 to direct exhaust air stream 302 forward and horizontal.
In one embodiment the elevation of axis of rotation 342 of impeller
132 relative to mounting surface 310 is less than about 66% of
"OAH".
[0084] In one exemplary embodiment axis of rotation 342 of impeller
132 and the axis of rotation 340 of rotational movement 320 of air
director housing 120 are substantially parallel and offset
horizontally and/or vertically. In yet another embodiment axis of
rotation 342 of impeller 132 and the axis of rotation 340 of
rotational movement 320 of air director housing 120 are
substantially coaxial.
[0085] As shown in FIG. 3A, peripheral edges 113a and 113b extend
below axis of rotation 342 of air impeller 132 and toward mounting
surface 310. Extending peripheral edges 113a and 113b toward
mounting surface 310 maximizes the open periphery area 113, (see
FIG. 2) and the range of rotational movement 320 of air director
housing 120.
[0086] FIG. 3D is a cross sectional side view of portable air
blower 100 illustrating rotational aspects of the device. Air
director housing 120 rotates about axis of rotation 340. As air
director housing 120 rotates about axis of rotation 340 the radial
extents of air director housing 120 define a rotational perimeter
170 of air director housing 120. Base 110 of portable air blower
100 is designed to allow unimpeded rotational movement 320 of air
director housing 120 over a predetermined angle. In effect no part
of base 110 interferes with rotational perimeter 170 of air
director housing 120 throughout the predetermined angle of
rotation.
[0087] In one embodiment air director housing 120 can rotate to
position horizontal outlet 124 directing exhaust air stream 302
forward and below horizontal, (below parallel to support surface
310). In another embodiment air director housing 120 can rotate to
position horizontal outlet 124, directing exhaust air stream 302 up
to and beyond a vertical direction, (beyond 90 degrees
perpendicular to support surface 310). In one embodiment air
director housing 120 can rotate to position horizontal outlet 124
directing exhaust air stream 302 forward and at least 45 degrees
below horizontal.
[0088] The range of rotational movement 320 of air director housing
120 in one example is between 0 degrees and 90 degrees. In yet
another example the range of rotational movement 320 is between 0
degrees and 180 degrees. In still yet another example the range of
rotational movement 320 is between 0 degrees and 270 degrees. In
yet another example the range of rotational movement 320 is between
0 degrees and 360 degrees.
[0089] Stops (not shown) can be use to limit the rotational travel
of air director housing 120. For example, it may be desirable to
limit the forward rotation of the air director housing 120 such
that the exhaust air stream 302 does not discharge downward onto
the mounting surface 310. This feature can further assure that
object and other materials on the mounting surface 310 are not
disturbed from their intended place.
[0090] FIGS. 4A and 4B are perspective views of another exemplary
embodiment of portable air blower 100 illustrating overall
dimensional aspect ratios and packaging advantages. As shown in
FIG. 4A horizontal air outlet 124 is defined by longitudinal length
"HDL" and height "HDH". Longitudinal length "HDL" is defined as the
length that includes the horizontal extents of horizontal air
outlet 124 measured parallel to axis of rotation 342 of impeller
132. Height "HDH" is defined as the dimension that includes the
vertical extents of horizontal air outlet 124 measured orthogonal
to length "HDL" of horizontal air outlet 124. Horizontal air outlet
124 has a horizontal aspect ratio defined by longitudinal length
"HDL" being greater than height "HDH". In one exemplary embodiment
the horizontal aspect ratio of horizontal air outlet 124 is greater
than about 2:1. More preferably, the horizontal aspect ratio of
greater than about 3:1.
[0091] In yet another embodiment the area of horizontal air outlet
124, defined as longitudinal length "HDL" multiplied by height
"HDH" is less than about 15 square inches. More preferably the area
of horizontal air outlet 124 is within a range of between about 8
inches to about 14 inches.
[0092] FIG. 4A also shows overall dimensions for portable air
blower 100. Overall height "OAH" is defined as the dimension from a
mounting surface to a highest vertical extent of portable air
blower 100 when air director housing 120 is rotated to position
horizontal outlet 124 to direct exhaust air stream 302 forward and
horizontal. Overall width "OAW" is defined as the dimension in
which reside the width extents of portable air blower 100 measured
parallel to axis of rotation 342 of impeller 132. Overall depth
"OAD" is defined as the dimension in which reside the depth extents
of portable air blower 100 measured orthogonal to axis of rotation
342 of impeller 132 and parallel to the mounting surface.
[0093] Portable air blower 100 has a horizontal aspect ratio
defined by overall width "OAW" being greater than overall height
"OAH". In one exemplary embodiment the horizontal aspect ratio of
portable air blower 100 is greater than about 1.1 to 1. Portable
air blower 100 also has a planar usage area. The planar usage area
is the area that portable air blower 100 occupies on a horizontal
mounting surface, such as for example a desk or table top. The
planar usage area of portable air blower 100 is defined by "OAW"
multiplied by "OAD". In another exemplary embodiment the planar
usage area is less than about 80 inches square. In yet another
exemplary embodiment "OAH" is limited to about 10 inches or less.
In yet another exemplary embodiment "OAH" is limited to about 6
inches or less.
[0094] Limiting "OAH" and the planar usage area as described
minimizes the obtrusiveness of portable air blower 100 in a room or
on a desk or table top. As described, portable air blower 100
occupies less area than a standard 8.5.times.11 piece of paper.
Limiting "OAH" as described allow portable air blower 100 to be
stable and less susceptible to accidental tip-over when placed on a
substantially flat mounting surface.
[0095] FIG. 4B shows overall dimensions of shipping package 400 for
portable air blower 100. Shipping package 400 is defined by a
height "PH", a width "PW", and a depth "PD". In one preferred
embodiment, the structure of portable air blower 100 allows the
device to be shipped completely assembled. Shipping package 400 for
the assembled embodiment of portable air blower 100 requires no
additional internal packaging, thus the size of shipping package
400 is economized. In one embodiment "PH" of shipping package 400
is less than about 115% of "OAH" of portable air blower 100, "PW"
of shipping package 400 is less than about 115% of "OAW" of
portable air blower 100 and "PD" of shipping package 400 is less
than about 115% of "OAD" of portable airblower 100. The structure
of portable airblower 100 and shipping package 400 so described
allows the maximum number of units shipped in a shipping container,
thus minimizing the cost of transportation.
[0096] FIGS. 5A and 5B are perspective views of exemplary
embodiments of blower assembly 130 that can be used with portable
air blower 100. As shown in FIG. 5A blower assembly 130 includes
impeller 132, motor 134, output shaft 135, and motor mounting
bracket 136. Impeller 132 is defined dimensionally by impeller
diameter "ID" and by axial length "IL".
[0097] As shown in FIG. 5B, blower assembly 130 includes impeller
132, motor 134, output shafts 135, and motor mounting bracket 136.
FIG. 5B shows a split impeller configuration including impeller
portion 132a and impeller portion 132b. Impeller portions 132a and
132b are connected to opposing shafts 135 of motor 134. It is
contemplated that impeller 132 may be constructed of more than two
portions. Impeller 132 is defined dimensionally by impeller
diameter "ID" and overall axial length "IL", and individual axial
lengths "IL1" and "IL2". Dimension "IL" is defined as the
dimensional extents of impellers 132a and 132b measured parallel to
axis of rotation 342.
[0098] In one exemplary embodiment impeller diameter "ID" of
impeller 132 is less than about 4.5 inches. In another embodiment
impeller diameter "ID" of impeller 132 is between about 1.5 inches
and about 4 inches. In yet another embodiment impeller diameter
"ID" is about 3 inches. In yet another embodiment the ratio of
axial length "IL" of impeller 132 to diameter "ID" of impeller 132
is about 1.5 to 1 or greater.
[0099] Limiting diameter ID of impeller 132 as described enhances
the ability to allow axis of rotation 342 of impeller 132 to be
located low in elevation relative to mounting surface 310, further
increasing the stability of the device as illustrated and described
in FIGS. 3A, 3B and 3C.
[0100] Blower assembly 130, having the dimensional and proportional
characteristics as described in FIGS. 5A and 5B allow blower
assembly 130 to properly fit and function within portable air
blower 100 having a horizontal aspect ratio and dimensional
limitations as described with respect to FIGS. 4A and 4B.
[0101] FIG. 6 illustrates another exemplary embodiment of portable
air blower 600. As shown in FIG. 6, portable air blower 600
includes base 610, air director housing 120, and blower assembly
130. Base 610 is defined by the portion of portable air blower 600
that supports air director housing 120 above a support surface.
Base 610 may include, as in this example, side-wall 612 and lower
member 614 connected to side-wall 612. Lower member 614 in this
example structurally supports side-wall 612. Also in this example
sidewall 612 defines interior space 616. Partially disposed within
interior space 616 may be for example: control 140 and/or a portion
of blower assembly 130.
[0102] Air director housing 120 is mounted to side wall 612 being
either rotatable or fixed with respect to lower member 614. In this
example base 610 is designed minimize it's impedance of rotational
perimeter 170, (see FIG. 3D) of air director housing 120. It is
also contemplated that portable air blower 600 may include such
mechanisms (not shown) that would oscillate air director housing
120 with respect to base 610 and/or a support surface. Air director
housing 120 defines interior space 122.
[0103] At least partially located within interior space 122 of air
director housing 120 is a portion of blower assembly 130. Blower
assembly 130 is used to draw air into interior space 122 and
discharge an exhaust air stream through horizontal air outlet
124.
[0104] Also shown is at least one air intake grill portion 118a.
Intake grill portion 118a allows air to enter interior space 122 of
air director housing 120. In the exemplary embodiment intake grill
portion 118a is coupled directly to air director housing 120. It is
contemplated that intake grill portion 118a could be constructed so
as to be an integral part of air director housing 120.
[0105] In this exemplary embodiment compartment 620 is located in
base 610. Compartment 620 may be used to store various object such
as for example, paperclips, note pads, writing utensils, etc.
[0106] In other respects, this embodiment is similar to the
previous exemplary embodiments, including the exemplary range of
rotation.
[0107] FIG. 7 illustrates another exemplary embodiment of the
portable air blower 700. As shown in FIG. 7, portable air blower
700 includes base 610, more than one air director housing 120, and
at least one blower assembly 130. In other respects, this
embodiment is similar to the previous exemplary embodiment of FIG.
6. Preferably, motor 134 is housed in side wall 612 and air
impellers 132a and 132b extend in opposite directions into each of
the air director housings.
[0108] FIG. 8 illustrates another exemplary embodiment of portable
air blower 800. As shown in FIG. 8, portable air blower 800
includes base 810, air director housing 120, and blower assembly
130. Base 810 supports air director housing 120 above a support
surface. As shown in FIG. 8, base 810 includes at least one saddle
surface 812 and lower member 814.
[0109] Air director housing 120 is rotatably coupled to base 810.
As shown, air director housing 120 includes a retainer surface 824
and base 810 includes a corresponding retainer 816. Retainer 816 is
used in this embodiment to couple air director housing 120 to base
810 while allowing air director housing 120 to rotate with respect
to base 810. As shown, retainer 816 is a rolling element, for
example a wheel. It is contemplated that other devices and features
may be used to couple air director housing 120 to base 810, such as
for example, stationary retainers, screws and slots.
[0110] Also shown is mounting surface 822 of air director housing
120. Mounting surface 822 is similar in form to saddle surface 812
of base 810. The similarity of form of mounting surface 822 and
saddle surface 812 allow air director housing 120 to rotate
smoothly while yet being supported by base 810. In this embodiment,
base 810 is designed to minimize it's impedance on the rotational
range of air director housing 120. It is also contemplated that
portable air blower 800 may include such mechanisms (not shown)
that would oscillate air director housing 120 with respect to base
810 and a support surface.
[0111] In other respects, this embodiment is similar to the
previous exemplary embodiments, including the exemplary range of
rotation.
[0112] FIG. 9 illustrates another exemplary embodiment of portable
air blower 900. As shown in FIG. 9, portable air blower 900
includes base 910, air director housing 120, and blower assembly
130. Base 910 supports air director housing 120 above a support
surface. As shown, base 910 includes at least one saddle surface
912 and lower member 914.
[0113] Air director housing 120 is rotatably coupled to base 910.
As shown in this embodiment, air director housing 120 includes
mounting surface 922. As shown mounting surface 922 is similar in
form to saddle surface 912 of base 910. Mounting surface 922 and
saddle surface 912 of base 910 also have retention features to
rotatably couple air director housing 120 to base 910. In this
example, the retention features include channels and tee-slots
formed in air director housing 120 and base 910. It is contemplated
that other devices and features may be used to couple air director
housing 120 to base 810, such as for example, stationary retainers,
screws and slots.
[0114] In other respects, this embodiment is similar to the
previous exemplary embodiment of FIG. 8.
[0115] The exemplary embodiments of portable air blower 100 as
described, having horizontal air outlet 124 has advantageous
portability and use. As described, the limited height of the
portable air blower 100 increases the stability and decreases it's
impedance to visual inspection the area around portable air blower
100 for example a desk or table top. The motor of the device is
located low with respect to the mounting surface thus lowering the
center of gravity and further increasing the stability of the
device. The impeller of portable air blower 100 is substantially
hidden within the structure of the device so as to reduce the
visual distractive qualities during rotation of the impeller. Also
described are various rotational features that allow the user to
direct the air stream to a desired location. The overall dimensions
of the air blower allow it to be placed on a work surface without
occupying excess space on the work surface. The overall dimensions
of the air blower described also facilitates the use of a shipping
package for a fully assembled device that will promote efficient
transportation; lowering the cost and simplifying the use of the
device for the end user.
[0116] It is contemplated that other accoutrements may be
incorporated into the portable air blower without departing from
the scope of the present invention, such as for example auxiliary
plugs, clocks, circuit breakers, pencil/pen holders and various
compartments, (to store, for example items such as paper
clips).
[0117] Although the invention has been described with reference to
exemplary embodiments, it is not limited thereto. Rather, the
appended claims should be construed to include other variants and
embodiments of the invention, which may be made by those skilled in
the art.
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