Compound tools – House painting – paper hanging – or glazing
Reexamination Certificate
1999-05-10
2001-02-06
Scherbel, David A. (Department: 3723)
Compound tools
House painting, paper hanging, or glazing
C007S165000
Reexamination Certificate
active
06182317
ABSTRACT:
TECHNICAL FIELD
The present invention relates to an improved scraper, and more particularly to a scraper having multi-functional handle.
BACKGROUND OF INVENTION
To achieve superior results when painting, sticking wallpaper or varnishing, the surface to be treated must be properly leveled by a scraper. Referring to
FIGS. 1 and 2
, the conventional scraper (
1
) comprises a scraping blade (
11
) and a wooden handle (
2
), and the connecting end (
12
) of the blade (
11
) is mounted into said handle (
2
). The combined scraper is then tightened by a screw
24
. However, the handle for this type of scraper further needs drilling a hole for inserting said screw and producing an inserting slot for mounting said blade. Additionally, the shape and surface of the handle also needs to be finished for a better grasping. Those processes are labor- and time-consuming, and thus increase the cost. Recently, another type of scraper with a plastic handle is used instead of the above-mentioned scraper. The connecting end of the blade is attached to a molder of the handle with two pre-set orifices (
21
) and (
22
) prior to molding the handle, and a scraper is formed after molding. Finally, a screw is mounted into the orifice (
21
) for a further tightness. Though this type of scraper can decrease the cost, it still has drawbacks as follows:
1. The materials of the blade and handle are different, and thus the connection thereof will get loose after a period of term;
2. The plastic handle is too weak to hammer any objects stuck on the treated surface;
3. The treated surfaces usually have screws to be removed or tightened, and this type of scraper cannot satisfy this need.
SUMMARY OF INVENTION
There is thus a need to provide a scraper in addition to decrease the cost but overcome the drawbacks found in the conventional scrapers. It is an object of the invention to provide a scraper which comprises the members of a blade with a scraping end and a connecting end having two orifices; a plastic handle having two orifices corresponding to those orifices on the connecting end of the blade, a slot on one end for mounting the connecting end of the blade, and two inserting grooves on the grasp end; and a hammering head with two flat pins having orifices corresponding to the orifice on the grasp end of the handle to insert into the inserting grooves on the handle; wherein the combined members are fastened by inserting two screws on the two orifices.
It is still another object of the invention to provide a scraper, wherein the screw inserted into the orifice on the grasp end of the handle is a hollow screw used as a hanging hole.
It is a still further object of the invention to provide a scraper, wherein a screwing tip is positioned on the hammering head.
REFERENCES:
patent: 3562826 (1971-02-01), Vaughn
patent: 5063627 (1991-11-01), Marra
patent: 5546625 (1996-08-01), Mealey, Sr.
patent: 5615445 (1997-04-01), Kelsay et al.
patent: 5720063 (1998-02-01), Chacon
patent: 5956799 (1999-09-01), Panaccione et al.
patent: 6009581 (2000-01-01), Davis et al.
Danganan Joni B.
Dougherty & Troxell
Scherbel David A.
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