Metal working – Method of mechanical manufacture – Disassembling
Reexamination Certificate
2000-08-14
2003-04-08
Bryant, David P. (Department: 3726)
Metal working
Method of mechanical manufacture
Disassembling
C029S426600, C029S239000
Reexamination Certificate
active
06543117
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a tool which simplifies the task of removing a cracked or broken windshield in an automobile.
BACKGROUND OF THE INVENTION
A conventional windshield is secured to the frame opening in the vehicle body by means of a peripheral urethane bond. When this bond cures the windshield is firmly sealed in the frame for the life of the automobile. However, due to the impact of stones and metal objects thrown up into the path of travel, windshields can be cracked or broken. Vandalism is also a problem.
A common practice to remove a defective windshield requires the mechanic to position himself in the vehicle with his head and shoulders pressed against the windshield to apply an outward pressure. While maintaining this pressure he must cut the urethane bond at the top and sides and pivot the partially loosened windshield about the bottom so as to cut the bottom bond without damaging any adjacent vehicle components. This procedure is dangerous and can traumatize the mechanic's neck and/or risk cuts.
There is a need for a tool to simplify the operation and substitute mechanical pressure against the windshield for human head and shoulder pressure.
The following prior art reflects the state of the art of which applicant is aware and is included herewith to discharge the applicant's acknowledged duty to disclose relevant prior art. It is stipulated, however, that none of these references teach singly nor render obvious when considered in any conceivable combination the nexus of the instant invention as disclosed in greater detail hereinafter and as particularly claimed.
U.S. Pat. No.
ISSUE DATE
INVENTOR
1,863,897
Jun. 21, 1932
Cloppert
2,014,535
Sep. 17, 1935
Maca
2,305,995
Dec. 22, 1942
Roberts
2,746,767
May 22, 1956
Evans
3,116,919
Jan. 7, 1964
Alth
3,620,524
Nov. 16, 1971
Czompi
3,662,994
May 16, 1972
Johns
3,770,259
Nov. 6, 1973
Wagreich
3,804,397
Apr. 16, 1974
Neumann
4,457,503
Jul. 3, 1984
Connor
5,042,772
Aug. 27, 1991
Madjeski
5,085,415
Feb. 4, 1992
Shaver
5,087,019
Feb. 11, 1992
Peabody, et al.
5,135,205
Aug. 4, 1992
Bédard
5,479,689
Jan. 2, 1996
Schmit, et al.
A number of tool assemblies to aid the mechanic in removing and installing automobile windshields have been invented as typified by U.S. Pat. No. 3,620,524, issued Nov. 16, 1971, to Joseph Czompi; U.S. Pat. No. 5,085,415, issued Feb. 4, 1992, to Craig Shaver; and U.S. Pat. No. 5,479,689, issued Jan. 2, 1996, to David Schmit, et al. The patent to Czompi shows two spaced suction cups connected to an adjustable assembly to support a windshield while it is being installed. Shaver shows a windshield support mounted on the steering wheel to space a portion of the windshield from the frame opening. Schmit, et al. Shows a hand held tool to separate a windshield from the upper frame in order to expose the bottom seal for cutting.
While the above-mentioned patents do teach tools to facilitate the removal and replacement of windshields, the prior art does not teach a windshield removal tool having the flexibility or attachment and precise adjustability to safely push a windshield out of a supporting frame.
The other prior art listed above, but not specifically described further catalog the prior art of which the applicant is aware. These references diverge even more starkly from the references specifically distinguished above.
REFERENCES:
patent: 1580358 (1926-04-01), Wright
patent: 2803872 (1957-08-01), Massa
patent: 2814099 (1957-11-01), Knittel
patent: 2827690 (1958-03-01), Brown
patent: 3662994 (1972-05-01), Johns
patent: 4183511 (1980-01-01), Marek
patent: 4209166 (1980-06-01), DeRouen
patent: 4429861 (1984-02-01), Range
patent: 4932639 (1990-06-01), Fjellstrom
patent: 5622093 (1997-04-01), Hutchins
patent: 5707450 (1998-01-01), Thompson
patent: 5863034 (1999-01-01), Vauter
patent: 5953802 (1999-09-01), Radzio
patent: 6101702 (2000-08-01), Claycomb et al.
Claycomb Kevin
Claycomb Sandra
Bryant David P.
Gaskell Sandra
Heisler & Associates
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