Tools – Shingle tool
Reexamination Certificate
1999-11-01
2001-04-03
Meislin, D. S. (Department: 3723)
Tools
Shingle tool
C299S036100
Reexamination Certificate
active
06209421
ABSTRACT:
BACKGROUND
1. Field of Invention
This invention relates to hand tools for removing shingles in single or multiple layers, from existing roofs, laid over skip sheeting boards.
2. Description of Prior Art
Shingle removing tools of various configurations have been suggested by the prior art, such as Mills U.S. Pat. No. 3,987,827, Whitesell U.S. Pat. No. 5,159,859, Wirth U.S. Pat. No. 5,495,781, Harpell U.S. Pat. No. 5,836,222 and Carroll U.S. Pat. No. 5,893,304. However, none of these prior art devices have a structure above and parallel to a lower insertion prong that inserts in the gap between sheeting boards, so that shingles are more effectively removed from the skip sheeting boards. Wirth discloses a prying tool with a prong or tongue that may be inserted in the gap and with arms extending laterally out on each side of the rear end of the tongue, but the arms are in the same horizontal plane as the tongue; they are not spaced above and parallel to the tongue; and they are positioned only at the rear of the tongue, they do not extend the entire length of the tongue. Wirth's arms act as a fulcrum to provide lifting movement to the tongue as the tool handle shank is moved down, forcing the tongue up to lift off the roofing material; they cannot act as a fulcrum to provide pry-lifting movement to the tongue as the tool handle is moved up.
OBJECTS AND ADVANTAGES
An object of my invention is to provide a tool that effectively removes wood shake shingles and any overlying second layer of roofing from skip sheeting roof boards, by utilizing an insert prong that may be inserted into the gap between the roof boards, and a structure fixed above and parallel to the prong, extending over, and to the left and right of, the prong, so that when the handle shank of the tool is worked to lift the prong, the upper overlying structure above the prong, may act as a fulcrum for pry-lifting the prong, and may also act as a trap for trapping the shingles between the lower prong and the upper structure. Another object is to provide an upper structure that overlies substantially the entire length of the prong, so that the structure may be a fulcrum at its rear end for pry-lifting the forward part of the prong by moving the handle shank down, and may also be a fulcrum at its front end for lifting the rearward part of the prong by moving the handle shank up. The upper structure acts as a barrier or trap, trapping the roofing material to be removed between the lower prong and the upper structure, and thus very effectively removes the roofing material. These and other objects and advantages will become apparent from the ensuing description and drawings.
REFERENCES:
patent: 322019 (1885-07-01), Spencer
patent: 880210 (1908-02-01), Gloner
patent: 1296738 (1919-03-01), Bekke
patent: 2655399 (1953-10-01), McMillan
patent: 3504578 (1970-04-01), Shannon et al.
Herriot Howard M.
Meislin D. S.
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