Information
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Patent Grant
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6272708
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Patent Number
6,272,708
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Date Filed
Tuesday, March 14, 200024 years ago
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Date Issued
Tuesday, August 14, 200123 years ago
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Inventors
-
-
Examiners
- Smith; James G.
- Shakeri; Hadi
Agents
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CPC
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US Classifications
Field of Search
US
- 007 105
- 007 100
- 007 138
- 007 143
- 007 165
- 081 490
- 015 23601
- 015 145
- 030 169
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International Classifications
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Abstract
A mason's scraper kit that has an extension rod and a scraper that can be easily engaged with or disengaged from an end of the extension rod. The scraper includes a handle with a receptacle. The receptacle includes a first threaded section in an inner end thereof and a second threaded section in an outer end thereof. The end of the extension rod includes a first outer threading for engaging with the first threaded section of the receptacle of the scraper handle. The end of the extension rod further includes a second outer threading for engaging with the second threaded section of the receptacle of the scraper handle. An end block is removably mounted in a handle thereof for carrying at least one tool bit. The end block includes a tool-engaging hole for releasably engaging with a tool bit, thereby providing an additional function.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a scraper kit for masons, and more particularly to a scraper kit for masons including an extension rod and a scraper that can be attached to an end of the extension rod for removing redundant cement on high. The present invention also relates to a scraper that may carry an end block in a handle thereof and a plurality of tool bits are carried by the end block.
2. Description of the Related Art
FIG. 9
of the drawings illustrates a conventional handle of a mason's scraper. The scraper handle
50
is threadedly engaged with a threaded end
52
of an extension rod
51
for removing cement on high. Nevertheless, the length L1 of the threaded end
52
is too short such that the threaded end
52
tends to break or disengage from the handle
50
during use, as the extension rod
51
has a considerable length. A solution to this problem is shown in
FIG. 10
, wherein the threaded end
52
and corresponding threaded section of the scraper handle
50
are lengthened (see “L2”), yet the threading engagement/disengagement becomes time-consuming and inconvenient.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to provide a mason's scraper kit that has an extension rod and a scraper that can be easily engaged with or disengaged from an end of the extension rod. The scraper includes a handle with a receptacle. The receptacle includes a first threaded section in an inner end thereof and a second threaded section in an outer end thereof. The end of the extension rod includes a first outer threading for engaging with the first threaded section of the receptacle of the scraper handle. The end of the extension rod further includes a second outer threading for engaging with the second threaded section of the receptacle of the scraper handle. Thus, engagement/disengagement of the scraper handle with/from the end of the extension rod can be easily achieved.
It is another object of the present invention to provide a mason's scraper that has an end block removably mounted in a handle thereof and a plurality of tool bits are carried by the end block. The end block includes a tool-engaging hole for releasably engaging with a tool bit, thereby providing an additional function.
It is a further of the present invention to provide a mason's scraper that has an anti-slip section on a handle thereof to prevent skip of user's finger during use.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an exploded perspective view of a mason's scraper in accordance with the present invention.
FIG. 2
is a perspective view of the mason's scraper in accordance with the present invention.
FIG. 3
is a perspective view illustrating use of the mason's scraper in accordance with the present invention.
FIG. 4
is a perspective view illustrating another use of the mason's scraper in accordance with the present invention.
FIG. 5
is a perspective view illustrating use of an end block of the mason's scraper in accordance with the present invention.
FIG. 6
is an exploded perspective view illustrating a scraper kit in accordance with the present invention.
FIG. 7
is a perspective view of the mason's scraper kit in accordance with the present invention.
FIG. 8
is a sectional view, in an enlarged scale, illustrating engagement between the mason's scraper and the extension rod of the scraper kit in accordance with the present invention.
FIG. 9
is a sectional view illustrating engagement between a conventional mason's scraper and an extension rod.
FIG. 10
is a sectional view illustrating another engagement between a conventional mason's scraper and an extension rod.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIGS. 1 and 2
, a mason's scraper
100
in accordance with the present invention generally includes a handle
20
and a blade
10
attached to an end of the handle
20
. A recessed anti-skip portion
21
is provided on the handle
20
at a position adjacent to the blade
10
such that the user's finger (e.g., the thumb
201
,
FIG. 3
) may apply a force to the recessed anti-skip portion
21
when in use. The handle
20
includes a receptacle
23
that has a first threaded section
24
in an inner end thereof and a second threaded section
25
in an outer end thereof.
An end block
30
is removably mounted in the receptacle
23
of the handle
20
. The end block
30
includes a tool seat
31
and a hammer section
32
formed on an end of the tool seat
31
. The tool seat
31
includes a tool-engaging hole
33
on an end face of the other end thereof for releasably receiving a tool bit
35
. The tool-engaging hole
33
is preferably defined in a center of the tool seat
31
. The end face of the other end of the tool seat
31
further includes a plurality of grooves
34
for receiving different bits
35
. Preferably, the grooves
34
surround the central tool-engaging hole
33
. Thus, the end block
30
can be used as a screwdriver or the like, best shown in FIG.
5
. The tool seat
31
includes an outer threading
36
adjacent to the hammer section
32
. Thus, the end block
30
may be received in the receptacle
23
of the handle
20
with the outer threading
36
engaged with the second threaded section
25
of the receptacle
23
.
FIG. 3
illustrates use of the mason's scraper in accordance with the present invention, wherein the thumb
201
of the user's hand
200
is placed on the recessed anti-skip section
21
on the handle
20
to prevent undesired skip during use. Thus, the user may use the blade
10
of the scraper
100
to remove redundant cement
300
.
FIG. 4
illustrates another use of the mason's scraper, wherein the user may use the hammer section
32
to break hardened cement
400
. The hammer section
32
is made of rigid material, e.g., metal.
Turning to
FIG. 6
, when removing cement on high that is not reachable by hand, the scraper in accordance with the present invention may be attached to an end of an extension bar
40
. As illustrated in
FIGS. 6 through 8
, the end of the extension rod
40
includes a first outer threading
41
for engaging with the first threaded section
24
of the receptacle
23
of the scraper handle
20
. The end of the extension rod
40
further includes a second outer threading
43
for engaging with the second threaded section
25
of the receptacle
23
of the scraper handle
20
. In this embodiment, the second outer threading
43
is formed on an outer periphery of a stub
42
projected from a side of an end cap
44
. The end cap
44
has a hole (not labeled) and thus slidable along the extension rod
44
. The end cap
44
covers the receptacle
23
of the handle
20
when the handle
20
is attached to the end of the extension rod
40
. Thus, engagement/disengagement of the scraper handle
20
with/from the end of the extension rod
40
can be easily achieved, as the threaded sections
24
,
25
are shorter than those of conventional design.
According to the above description, it is appreciated that the mason's scraper in accordance with the present invention may remove redundant cement without the risk of skip during use by means of provision of the anti-skip section on the handle. In addition, the hammer section on the end block securely received in the handle may be used to break hardened cement. Furthermore, the end block may be removed and the handle is attached to an end of an extension rod so as to remove cement on high. The threading engagement between the extension rod and the handle is reliable to prevent breakage in the engaging area, yet the engagement/disengagement is easier.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
Claims
- 1. A scraper comprising:a handle and a blade attached to an end of the handle, the handle including a receptacle, and an end block removably mounted in the receptacle of the handle, the end block being capable of carrying at least one tool bit, the end block being removed from the receptacle of the handle when using as a screwdriver.
- 2. The scraper kit as claimed in claim 1, wherein the handle includes an anti-skip section adjacent to the blade for preventing skip of use's finger during use.
- 3. The scraper kit as claimed in claim 1, further comprising an end block that is removably mounted in the receptacle of the handle after disengaging the extension rod from the handle, the end block including an outer threading for releasably engaging with the second threaded section of the receptacle.
- 4. The scraper kit as claimed in claim 3, wherein the end block includes a hammer section located outside the handle when the end block is received in the receptacle of the handle.
- 5. The scraper kit as claimed in claim 3, wherein the end block includes a tool seat with an end face, the end face having a tool-engaging hole for releasably receiving a tool bit.
- 6. The scraper kit as claimed in claim 5, wherein the tool-engaging hole is located in a center of the end face.
- 7. The scraper kit as claimed in claim 5, wherein the end face of the tool seat includes a plurality of grooves for receiving different bits.
- 8. The scraper kit as claimed in claim 6, wherein the end face of the tool seat includes a plurality of grooves surrounding the tool-engaging hole for receiving different bits.
- 9. A scraper kit comprising:a handle and a blade attached to an end of the handle, the handle including a receptacle, the receptacle including a first threaded section in an inner end thereof and a second threaded section in an outer end thereof; and an extension rod including an end having a first outer threading for releasably engaging with the first threaded section of the receptacle, an end cap being slidably mounted to the end of the extension rod, the end cap including a second outer threading for releasably engaging with the second threaded section of the receptacle.
- 10. The scraper kit as claimed in claim 9, wherein the end cap includes a stub having an outer periphery on which the second outer threading is formed.
- 11. The scraper kit as claimed in claim 9, further comprising an end block that is removably mounted in the receptacle of the handle after disengaging the extension rod from the handle, the end block including an outer threading for releasably engaging with the second threaded section of the receptacle.
- 12. The scraper kit as claimed in claim 11, wherein the end block includes a hammer section located outside the handle when the end block is received in the receptacle of the handle.
- 13. The scraper kit as claimed in claim 11, wherein the end block includes a tool seat with an end face, the end face having a tool-engaging hole for releasably receiving a tool bit.
US Referenced Citations (12)