U.S. patent number 3,895,407 [Application Number 05/380,026] was granted by the patent office on 1975-07-22 for shag rug adapter.
This patent grant is currently assigned to Parise & Sons, Inc.. Invention is credited to Carl Parise.
United States Patent |
3,895,407 |
Parise |
July 22, 1975 |
Shag rug adapter
Abstract
A shag rug adapter designed to be attached to a standard vacuum
cleaner rug tool. The adapter has (1) a plurality of hollow rake
stands, also called "tines," subjected to vacuum pressure which
have openings therein alternately directed forward and backward to
create a scissors-like fluid agitation of the pile as the adapter
is drawn through it, (2) a plurality of solid rake toes, also
called "fingers," spaced intermediate the rake stands to comb the
pile and to act as a divider between the oppositely directed air
currents flowing to the rake stands, and (3) a plurality of lint
slots spaced intermediate the rake stands.
Inventors: |
Parise; Carl (Reno, NV) |
Assignee: |
Parise & Sons, Inc. (Reno,
NV)
|
Family
ID: |
23499619 |
Appl.
No.: |
05/380,026 |
Filed: |
July 17, 1973 |
Current U.S.
Class: |
15/397; 15/416;
D32/32 |
Current CPC
Class: |
A47L
9/02 (20130101) |
Current International
Class: |
A47L
9/02 (20060101); A47l 009/02 () |
Field of
Search: |
;15/397,396,402,415,416,369 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hornsby; Harvey C.
Assistant Examiner: Moore; C. K.
Attorney, Agent or Firm: Sughrue, Rothwell, Mion, Zinn &
Macpeak
Claims
What is claimed is:
1. In a shag rug vacuum cleaning tool comprising:
1. a housing having
a. a work face adapted to be brought in contact with shag rugs to
clean them,
b. an air-tight chamber therewithin, and
c. a passageway adapted to place said chamber in communication with
a vacuum source; and
2. a plurality of rake tines each of which
a. is fixedly mounted on said work face of said housing and
b. contains a passageway leading from said chamber in said housing
to the end of said rake tine removed from said work face,
the improvements
a. wherein said rake tines have means thereon for directing the
vacuum pressure from each of said tines
i. in a plane parallel to said work face,
ii. in a direction parallel to the direction of travel of the
cleaning tool when in normal use, and
iii. in the direction opposite to the direction in which the vacuum
pressure from the adjacent tine or tines is directed; and
b. wherein said rake tines and the means thereon for directing the
vacuum pressure from each of said tines are located on said work
face such that the oppositely directed means on adjacent tines are
close enough so that, when the cleaning tool is used to clean a
shag rug, the piles of the shag rug located between two of said
tines are subjected to a shearing action from the simultaneous
application in opposite directions of the vacuum pressure from the
adjacent tines.
2. In a shag rug adapter adapted to be attached to a standard
vacuum cleaner rug tool, said adapter comprising:
1. a housing having
a. a work face adapted to be brought in contact with shag rugs to
clean them and
b. an upwardly opening face adapted to be detachably joined to the
downwardly opening face of a standard vacuum cleaner rug tool to
define an air-tight chamber and
2. a plurality of rake tines each of which
a. is fixedly mounted on said work face of said housing and
b. contains a passageway leading from said upwardly opening face in
said housing to the end of said rake tine removed from said work
face,
the improvement
a. wherein said rake tines have means thereon for directing the
vacuum pressure from each of said tines
i. in a plane parallel to said work face,
ii. in a direction parallel to the direction of travel of the
cleaning tool when in normal use, and
iii. in the direction opposite to the direction in which the vacuum
pressure from the adjacent tine or tines is directed; and
b. wherein said rake tines and the means thereon for directing the
vacuum pressure from each of said tines are located on said work
face such that the oppositely directed means on adjacent tines are
close enough so that, when the cleaning tool is used to clean a
shag rug, the piles of the shag rug located between two of said
tines are subjected to a shearing action from the simultaneous
application in opposite directions of the vacuum pressure from the
adjacent tines.
3. A shag rug vacuum cleaning tool as claimed in claim 2 wherein
said means for directing the vacuum pressure from each of said
tines comprise bevels on said rake tines at the ends thereof
removed from said work face, said bevels leading from the ends of
said rake tines removed from said work face to points on said rake
tines spaced from the ends thereof removed from said work face and
intersecting said passageways in said tines.
4. A shag rug vacuum cleaning tool as claimed in claim 3 and
further comprising a plurality of solid rake fingers mounted on
said work face of said housing intermediate said rake tines and
adapted to comb the pile on a shag rug as the tool is drawn through
it and to act as a divider between the oppositely directed air
currents flowing to said rake tines when vacuum is supplied to said
chamber.
5. A shag rug vacuum cleaning tool as claimed in claim 4 wherein
said housing further has a plurality of lint slots therein
intermediate said rake tines on said work face of said housing.
6. A shag rug vacuum cleaning tool as claimed in claim 1 and
further comprising a plurality of solid rake fingers mounted on
said work face of said housing intermediate said rake tines and
adapted to comb the pile on a shag rug as the tool is drawn through
it and to act as a divider between the oppositely directed air
currents flowing to said rake tines when vacuum is supplied to said
chamber.
7. A shag rug vacuum cleaning tool as claimed in claim 6 wherein
said housing further has a plurality of lint slots therein
intermediate said rake tines tines said work face of said
housing.
8. A shag rug vacuum cleaning tool as claimed in claim 1 wherein
said housing further has a plurality of lint slots therein
intermediate said rake tines on said work face of said housing.
9. A shag rug adapter as claimed in claim 2 wherein said means for
directing the vacuum pressure from each of said tines comprise
bevels on said rake tines at the ends thereof removed from said
work face, said bevels leading from the ends of said rake tines
removed from said work face to points on said rake tines spaced
from the ends thereof removed from said work face and intersecting
said passageways in said tines.
10. A shag rug adapter as claimed in claim 9 and further comprising
a plurality of solid rake fingers mounted on said work face of said
housing intermediate said rake tines and adapted to comb the pile
on a shag rug as the adapter is drawn through it and to act as a
divider between the oppositely directed air currents flowing to
said rake tines when vacuum is supplied to said upwardly opening
face.
11. A shag rug adapter as claimed in claim 10 wherein said housing
further has a plurality of lint slots therein intermediate said
rake tines on said work face of said housing.
12. A shag rug adapter as claimed in claim 2 and further comprising
a plurality of solid rake fingers mounted on said work face of said
housing intermediate said rake tines and adapted to comb the pile
on a shag rug as the adapter is drawn through it and to act as a
divider between the oppositely directed air currents flowing to
said rake tines when vacuum is supplied to said upwardly opening
face.
13. A shag rug adapter as claimed in claim 12 wherein said housing
further has a plurality of lint slots therein intermediate said
rake tines on said work face of said housing.
14. A shag rug adapter as claimed in claim 2 wherein said housing
further has a plurality of lint slots therein intermediate said
rake tines on said work face of said housing.
Description
FIELD OF THE INVENTION
This invention relates generally to vacuum cleaners and
particularly to vacuum cleaners adapted for use with a plurality of
interchangeable attachments for effecting various types of cleaning
operations.
SUMMARY OF THE INVENTION
This invention is of a vacuum cleaning tool for use in cleaning
shag rugs and the like. While it can be employed as an entire tool
designed to be attached directly to a vacuum wand, it is
advantageously designed as an adapter for attachment to a standard
vacuum cleaner rug tool. In a preferred embodiment, the tool has
(1) a plurality of hollow rake stands whose ends are alternately
bevelled forward and backward to create a scissor-like agitation of
the pile as the adapter is drawn through it, (2) a plurality of
solid rake toes spaced intermediate the rake stands to comb the
pile and to act as a divider between the oppositely directed air
currents flowing to the rake stands, and (3) a plurality of lint
slots spaced intermediate the rake stands.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a rear view of a shag rug adapter made in accordance with
the present invention and detachably mounted on a standard vacuum
cleaner rug tool (shown in phantom).
FIG. 2 is a bottom view of the adapter and standard rug tool shown
in FIG. 1.
FIG. 3 is a sectional view taken along the lines 3-3 in FIG. 1 but
omitting the standard rug tool.
FIG. 4 is a sectional view taken along the lines 4-4 in FIG. 1 but
omitting the standard rug tool.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIGS. 1 and 2 show an adapter 10 detachably mounted on a standard
vacuum cleaner rug tool 12 (shown in phantom). The adapter 10 can
be made of plastic, metal, or any other suitable material. The
detachable mounting can be effected by dimensioning the parts for a
moderate squeeze fit or by providing a spring catch, both in
manners well known in the art, or by any other appropriate method.
The standard rug tool 12 has a downwardly opening face (not shown
expressly) which, in conjunction with an upwardly opening face 14
on the adapter 10, defines an air-tight vacuum chamber. The
standard rug tool 12 includes a mounting 16 by which the standard
rug tool 12 can be connected to the wand of a vacuum cleaner,
allowing the chamber defined by the downwardly opening face of the
standard rug tool 12 and the upwardly opening face 14 of the
adapter 10 to communicate with the vacuum supplied by the vacuum
cleaner.
A plurality of rake stands 18, also called rake "tines" are mounted
on the work face 20 of the adapter 10. Each of the rake stands 18
contains a passageway leading from the air-tight vacuum chamber to
the end of the rake stand removed from the work face 20. The ends
of the rake stands 18 removed from the work face 20 are bevelled
alternately forward and backward (see particularly FIG. 1) so that
the vacuum from the air-tight vacuum chamber is alternately
directed forward and backward when the ends of the rake stands 18
are in contact with a relatively impervious surface, such as the
base of a rug. This construction creates a violent scissor-like
agitation of the pile on shag rugs as the tool is drawn through it,
resulting in a remarkably effective cleaning of the rug.
Intermediate the rake stands 18, solid rake toes 22, also called
rake "toes" are likewise mounted on the work face 20 of the adapter
10. The rake toes 22 comb the pile on shag rugs as the tool is
drawn through it, and they act as a divider between the oppositely
directed air-currents flowing to the rake stands 18.
Finally, lint slots 24 are provided in the work face 20 of the
adapter 10 intermediate the rake stands 18. As may best be seen in
FIG. 4, lint slots 24 provide direct communication between the work
face 20 of the adapter 10 and the air-tight vacuum chamber. This
construction provides additional cleaning power at a higher stratum
of the pile than the bevelled rake stands 18, thereby maximizing
the effectiveness of the cleaning operation.
CAVEAT
While the invention has been illustrated by a detailed description
of a preferred embodiment thereof, it will be obvious to those
skilled in the art that various changes in form and detail can be
made therein without departing from the true scope of the
invention. Accordingly, the scope of this invention must be
measured by the attached claims and not solely by reference to the
foregoing detailed description of a preferred embodiment
thereof.
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