U.S. patent application number 11/856319 was filed with the patent office on 2009-03-19 for non-pneumatic scaler.
Invention is credited to Michael L. Amirault.
Application Number | 20090070976 11/856319 |
Document ID | / |
Family ID | 40452951 |
Filed Date | 2009-03-19 |
United States Patent
Application |
20090070976 |
Kind Code |
A1 |
Amirault; Michael L. |
March 19, 2009 |
Non-Pneumatic Scaler
Abstract
A non-pneumatic scaler includes a linear motion gearbox and an
electric motor in communication with the gearbox for selectively
actuating it. An implement is removably coupled to the linear
motion gearbox such that actuation of the gearbox causes the
implement to oscillate. A housing contains the linear motion
gearbox such that the implement extends partially outside the
housing. A rechargeable battery is coupled to the housing for
supplying power to the motor. The scaler includes a trigger for
actuating the motor. Another input device is included for varying
the rate of oscillation of the implement. One or more light
emitting diodes may be mounted to the housing for illuminating a
work area. The scaler may include a force transmitter that
transfers the motor's force to cause the implement to rotate. A
clutch may be manipulated to allow either the linear motion gearbox
or the force transmitter to be selected.
Inventors: |
Amirault; Michael L.;
(Plainville, MA) |
Correspondence
Address: |
HARSHAW RESEARCH, INC.
210 W. TECUMSEH STREET
OTTAWA
KS
66067
US
|
Family ID: |
40452951 |
Appl. No.: |
11/856319 |
Filed: |
September 17, 2007 |
Current U.S.
Class: |
29/81.14 |
Current CPC
Class: |
Y10T 29/4578 20150115;
B25D 11/00 20130101 |
Class at
Publication: |
29/81.14 |
International
Class: |
B21B 45/04 20060101
B21B045/04 |
Claims
1. A scaler, comprising: a linear motion gearbox; a motor in
communication with said linear motion gearbox for selectively
actuating said linear motion gearbox; an implement operatively
coupled to said linear motion gearbox, wherein actuation of said
linear motion gearbox causes said implement to oscillate; a battery
in electrical communication with said motor to power said motor; a
housing containing said linear motion gearbox, said implement being
at least partially outside said housing; and means for actuating
said motor.
2. The scaler as in claim 1, further comprising a LED coupled to
said housing and in electrical communication with said battery for
selectively providing a lighted environment adjacent said
implement.
3. The scaler as in claim 1, wherein said battery is a rechargeable
battery removably coupled to said housing.
4. The scaler as in claim 1, further comprising an input device in
communication with said motor or said linear motion gearbox for
varying a rate of oscillation of said implement.
5. The scaler as in claim 4, further comprising a LED coupled to
said housing and in electrical communication with said battery for
selectively providing a lighted environment adjacent said
implement, and wherein said housing includes a rubber handle.
6. The scaler as in claim 1, further comprising: means for
selectively rotating said implement; and an input device for
selecting one of and deselecting another of said linear motion
gearbox and said means for selectively rotating said implement.
7. The scaler as in claim 6, wherein said implement is one of a
chisel head, a needle head, a preparation grinding disc, a
star-brite pad, a wire brush, or a bur.
8. The scaler as in claim 6, further comprising a LED coupled to
said housing and in electrical communication with said battery for
selectively providing a lighted environment adjacent said
implement, and wherein: said housing includes a rubber handle; said
battery is a rechargeable battery removably coupled to said
housing; and said implement is removable.
9. The scaler as in claim 1, wherein said implement is selected
from a group consisting of a chisel head and a needle head.
10. The scaler as in claim 1, wherein said implement is
removable.
11. A non-pneumatic scaler, comprising: a linear motion gearbox; a
motor in communication with said linear motion gearbox for
selectively actuating said linear motion gearbox; an implement
removably coupled to said linear motion gearbox, wherein actuation
of said linear motion gearbox causes said implement to oscillate; a
housing containing said linear motion gearbox, said implement being
at least partially outside said housing; means for powering said
motor; and means for actuating said motor.
12. The non-pneumatic scaler as in claim 11, further comprising a
LED coupled to said housing and in electrical communication with
said means for powering said motor for selectively providing a
lighted environment adjacent said implement.
13. The non-pneumatic scaler as in claim 12, further comprising an
input device in communication with said motor or said linear motion
gearbox for varying a rate of oscillation of said implement.
14. The non-pneumatic scaler as in claim 13, further comprising:
means for selectively rotating said implement; and an input device
for selecting one of and deselecting another of said linear motion
gearbox and said means for selectively rotating said implement.
15. The non-pneumatic scaler as in claim 14, wherein said means for
powering said motor includes a rechargeable battery removably
coupled to said housing.
16. The non-pneumatic scaler as in claim 11, further comprising an
input device in communication with said motor or said linear motion
gearbox for varying a rate of oscillation of said implement.
17. The non-pneumatic scaler as in claim 11, further comprising:
means for selectively rotating said implement; and an input device
for selecting one of and deselecting another of said linear motion
gearbox and said means for selectively rotating said implement.
18. The non-pneumatic scaler as in claim 17, further comprising a
LED coupled to said housing and in electrical communication with
said means for powering said motor for selectively providing a
lighted environment adjacent said implement.
19. The non-pneumatic scaler as in claim 11, wherein said means for
actuating said motor includes an input trigger.
20. The non-pneumatic scaler as in claim 11, wherein said means for
powering said motor includes a rechargeable battery removably
coupled to said housing.
Description
BACKGROUND OF THE INVENTION
[0001] This invention relates generally to handheld or cordless
tools and, more particular to a non-pneumatic slag scaler for use
in removing slag from welding jobs or similar applications. With
interchangeable implements and a rechargeable battery, the
non-pneumatic scaler provides improved utility and increased
convenience over traditional slag scalers.
[0002] Various surfaces often require a level of cleaning or
smoothing than can not be accomplished by hand. A scaler is a
device that is useful for removing paint, rust, weld slag, or other
hard to remove and unattractive residue. Some scalers have a chisel
or needle head that is particularly suited for chipping away
hardened weld slag. Although assembly effective, for their intended
purposes, the existing scalers must be connected to a pneumatic or
electric power supply and are thus limited in their range of
movement away from the power source. In addition, the existing
scalers may be limited by their inability to accommodate multiple
interchangeable implements or to selectively facilitate both linear
and rotational movement.
[0003] Therefore, it would be desirable to have a non-pneumatic
scaler that is handheld and powered by a removable and rechargeable
battery. Further, it would be desirable to have a non-pneumatic
scaler having interchangeable implements. In addition, it would be
desirable to have a non-pneumatic scaler capable of linear or
rotational movement and adjustable speeds.
SUMMARY OF THE INVENTION
[0004] Accordingly, a non-pneumatic scaler according to the present
invention includes a linear motion gearbox and a motor, the motor
being in communication with the gearbox for selectively actuating
it. An implement may be removably coupled to the linear motion
gearbox such that actuation of the linear motion gearbox causes the
implement to oscillate. The non-pneumatic scaler includes a housing
containing the linear motion gearbox and is situated such that the
implement extends partially outside the housing. A rechargeable
battery is coupled to the housing for supplying power to the motor.
The scaler includes an input trigger for actuating the motor.
Another input device is included for varying the rate of
oscillation of the implement. One or more light emitting diodes may
be mounted to the housing for illuminating an area adjacent to the
implement. In addition, the scaler may include a force transmitter
that may transfer the force of the motor to cause the implement to
rotate. A clutch may be manipulated to allow either the linear
motion gearbox or the alternate force transmitter to be
selected.
[0005] A wide range of implements may be removably and
interchangeably coupled to the scaler housing such that the scaler
is useful for many applications. For example, a chisel head or
needle head are useful for removing weld slag whereas an aluminum
oxide preparation disc may be attached in order to grind down light
welds or to prepare surfaces for painting. Star Brite pads may also
be used with the non-pneumatic scaler for paint and rust removal,
bead sanding, removal of auto body scuffing, and paint preparation.
Carbide burs and wire brushes are also attachable for use with the
non-pneumatic scaler for a multitude of cleaning or smoothing
applications.
[0006] Therefore, a general object of this invention is to provide
a non-pneumatic scaler for preparing or cleaning a surface of rust,
paint, weld slag, or the like.
[0007] Another object of this invention is to provide a
non-pneumatic scaler, as aforesaid, having an electric motor and
linear motion gearbox powered by a rechargeable battery.
[0008] Still another object of this invention is to provide a
non-pneumatic scaler, as aforesaid, having multiple removable and
interchangeable implements for a wide variety of applications.
[0009] A further object of this invention is to provide a
non-pneumatic scaler, as aforesaid, that is lightweight and easy to
use.
[0010] A still further object of this invention is to provide a
non-pneumatic scaler, as aforesaid, having lights for illuminating
a work area.
[0011] Other objects and advantages of the present invention will
become apparent from the following description taken in connection
with the accompanying drawings, wherein is set forth by way of
illustration and example, embodiments of this invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a perspective view of a non-pneumatic scaler
according to a preferred embodiment of the present invention;
[0013] FIG. 2 is a another perspective view of the non-pneumatic
scaler as in FIG. 1;
[0014] FIG. 3a is a side view of the non-pneumatic scaler as in
FIG. 1;
[0015] FIG. 3b is a sectional view taken along line 3b-3b in FIG.
3a;
[0016] FIG. 4 is a perspective view of implements removed from the
scaler as in FIG. 1; and
[0017] FIG. 5 is a block diagram of a non-pneumatic scaler
according to another embodiment of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0018] A scaler 100 according to the present invention will now be
described in detail with reference to FIGS. 1 through 5 of the
accompanying drawings. More particularly, according to the current
invention, a non-pneumatic scaler 100 includes a linear motion
gearbox 110 (FIG. 3b).
[0019] As shown in FIG. 3b, a motor 120 is in communication with
the linear motion gearbox 110 to selectively actuate the linear
motion gearbox 110. An implement 130 (i.e., a scaler head) is
operatively coupled to the linear motion gearbox 110 (e.g., by a
quick release member 112 or another suitable fastener) so that
actuation of the linear motion gearbox 110 causes the implement 130
to oscillate. FIG. 4 shows one implement 130 that is a chisel head
132 and another implement 130 that is a needle head 134. Though not
shown, other appropriate implements 130 include, for example, a
preparation grinding disc, a star-brite pad, a wire brush, and a
bur. While the implement 130 is preferably removably coupled to the
linear motion gearbox 110, it may alternately be permanently
affixed thereto. A housing 140 may contain the linear motion
gearbox 110 and the motor 120, as shown in FIG. 3b, and the
implement 130 must be at least partially outside the housing 140.
The housing 140 may include a rubber handle 142 to dampen the force
imparted to the user from using the scaler 100. It should be
understood that the housing 140 may also include a handle having a
pistol grip configuration such that the scaler 100 may be used in
the manner of, say, a drill or similar tool.
[0020] The scaler 100 may include means for powering the motor 120,
such as a battery 150 in electrical communication with the motor
120. More particularly, the battery 150 may be a rechargeable
battery removably coupled to the housing 140 (FIG. 3b). In
addition, means for actuating the motor 120, such as an input
trigger 155 (FIGS. 1 and 2), may be included. As shown in FIGS.
1-3b and 5, one or more LED 158 may be in electrical communication
with the battery 150 and coupled to the housing 140 for selectively
providing a lighted environment adjacent the implement 130.
[0021] As shown in FIGS. 1 through 3, an input device 160 may be in
communication with the motor 120 or the linear motion gearbox 110
for varying a rate of oscillation of the implement 130.
[0022] FIG. 5 shows that the scaler 100 may further include means
for selectively rotating the implement 130. More particularly, an
alternate force transmitter 170, such as a gear train, may transfer
force from the motor 120 to the implement 130 to rotate the
implement 130. An input device 172 and a clutch 175 or another
appropriate device may allow either the linear motion gearbox 110
or the alternate force transmitter 170 to be selected.
[0023] In use, a respective implement 130 may be selected (e.g.,
depending on the task to be completed) and coupled to the linear
motion gearbox 110 by the quick release member 112. The battery 150
may be charged and coupled to the housing 140, placing the battery
150 in electrical communication with the motor 120. The input
trigger 155 may then be used to actuate the motor 120, causing the
linear motion gearbox 110 to oscillate the implement 130. The LED
158 may provide a lighted environment adjacent the implement 130,
and the rubber handle 142 may dampen the force imparted to the user
from the implement 130 interacting with a work surface. To rotate
(instead of oscillate) the implement 130, the user may utilize the
input device 172, causing the clutch 175 to select the alternate
force transmitter 170 instead of the linear motion gearbox 110.
When selected, the alternate force transmitter 170 may rotate the
implement 130 upon actuation of the motor 120 by the input trigger
155.
[0024] It is understood that while certain forms of this invention
have been illustrated and described, it is not limited thereto
except insofar as such limitations are included in the following
claims and allowable functional equivalents thereof.
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