Static structures (e.g. – buildings) – Machine or implement – Roofing
Patent
1995-09-15
1996-11-19
Canfield, Robert
Static structures (e.g., buildings)
Machine or implement
Roofing
527481, 52DIG1, 521275, 81 45, E04D 1500
Patent
active
055751326
ABSTRACT:
A T-Lock shingle installation tool comprises a plate having a hand grip provided therein, a pair of tapered leading insertion edges at a forward end of said plate that are separated by a recessed portion. The plate may taper from back to front, and the insertion edges each may have a knife-like forwardly projecting tapered edge. The plate may be provided with an aperture located near a back edge of the plate with the hand grip being defined between the back edge and the aperture. The method of installing interlocking shingles of the type having a broader weather-exposed section and a narrow leg section for interlocking with adjacent shingles comprises the steps of placing the tool around the leg of a shingle to be installed so as to overlay interlocking portions of such shingle, and slipping the tool beneath interlocking portions of a pair of installed shingles so as to pry up the interlocking portions and inserting the tool and the interlocking portions of the shingle to be installed simultaneously beneath the pried up portions of the installed shingles so as to interlock the shingle being installed with the installed shingles.
REFERENCES:
patent: 969528 (1910-09-01), Disbrow
patent: 2576262 (1951-11-01), Morehead
patent: 3195266 (1965-07-01), Onanian
patent: 3865370 (1975-02-01), Rogers
patent: 4009743 (1977-03-01), Ackerman
patent: 4670932 (1987-06-01), Williams
patent: 5249767 (1993-10-01), Mellen
patent: 5447289 (1995-09-01), Callahan
patent: 5459897 (1995-10-01), Wurdack
Canfield Robert
Cross, Jr. Harry M.
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