Tools – Shingle tool
Reexamination Certificate
2000-04-14
2001-07-10
Hail, III, Joseph J. (Department: 3723)
Tools
Shingle tool
C030S170000
Reexamination Certificate
active
06257094
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to apparatus for stripping roofing material from building roofs and, more particularly, to a manually operable roofing shingle and tar paper stripper large enough to strip more than one roofing shingle at at time and yet small enough to be manually controlled by a user.
BACKGROUND OF THE INVENTION
Roofing shingle strippers have heretofore been of two main types. The first type is a manual stripper approximating the size of a spade-type shovel having serrations at the leading edge of the shovel for prying roofing nails from plywood boards. Such a stripper is shown at U.S. Pat. No. 4,203,210, issued May 20, 1980. Another shingle stripper is found in U.S. Pat. No. 4,324,042, issued Apr. 13, 1982, which includes a device shaped similar to a straight hoe with a chisel edge and a tab along one side of the chisel edge. A hydraulically operated shingle stripper having a spade type distal working end is shown at U.S. Pat. No. 4,691,439 issued Sep. 8, 1987.
The second type of stripper is larger and generally motor-driven. Such shingle strippers are shown at U.S. Pat. No. 4,091,535, issued May 30, 1980 and U.S. Pat. No. 5,009,131, issued Apr. 23, 1991. These motor-driven machines tend to be larger than the aforementioned manually operable strippers, and they include vibrating or oscillating front teeth with drives similar to those found in a hair clipper apparatus or in garden shears, It is an object of the present invention to provide a new and improved manually operable roofing shingle and tar paper stripper which is capable of removing shingles from a roof at a rate compatible with existing power operated devices.
SUMMARY OF THE INVENTION
Briefly, the present invention is embodied in a tool for stripping shingles from a roof. The tool has an elongated central member having a forward stripping end and a rearward end with a handle mounted thereon. A deflector shield is mounted on the central member with a plurality of tines extending from the forward end of the deflector shield which slide under shingles and strip them from the roof. Mounted beneath the deflector shield are a plurality of wheels such that the device may be rolled across a sloping roof.
A brake engages the wheels to stop the rotation thereof unless a brake disengagement lever is withdrawn by the operator. To operate the device, therefore, the operator must hold the disengagement lever to disengage the brake from the wheels. In the event the operator loses control of the tool, he will release the lever, and the brake will engage the wheel.
In the preferred embodiment, the wheels are adjustable to change the angle at which the tines will engage the surface to be stripped. A shield is also provided near the handle to protect the hands and arms of the operator from being hit by shingles and tar paper loosened by the tool.
REFERENCES:
patent: 2279454 (1942-04-01), Fischer
patent: 4880491 (1989-11-01), Jacobs et al.
patent: 5218766 (1993-06-01), Himebaugh
patent: 5863100 (1999-01-01), Martin
patent: 5893304 (1999-04-01), Carroll
Hail III Joseph J.
Patnaude & Videbeck
Thomas David B
LandOfFree
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