Compound tools – House painting – paper hanging – or glazing
Reexamination Certificate
2000-03-14
2001-08-14
Smith, James G. (Department: 3723)
Compound tools
House painting, paper hanging, or glazing
C007S165000, C030S169000, C015S236010
Reexamination Certificate
active
06272708
ABSTRACT:
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.
REFERENCES:
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patent: 5566596 (1996-10-01), Lin
patent: 5575030 (1996-11-01), Girard
patent: 5613413 (1997-03-01), Huang
patent: 5720063 (1998-02-01), Chacon
patent: 5868048 (1999-02-01), Cassutti et al.
patent: 5881615 (1999-03-01), Dahl et al.
patent: 5957014 (1999-09-01), Tseng et al.
patent: 6009581 (2000-01-01), Davis et al.
patent: 6131222 (2000-10-01), Anderson et al.
patent: 6131290 (2000-10-01), Chiou
Rosenberg , Klein & Lee
Shakeri Hadi
Smith James G.
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