Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1997-07-14
1999-04-13
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
152361, 81 45, B26B 308, E04D 1502
Patent
active
058936114
ABSTRACT:
A roofing removal apparatus for stripping shingles, roofing paper, tar paper and nails from roof decking prior to replacing and installing new shingles. The inventive device includes a frame having a pair of guide members with tapered ends, a motor having a drive shaft, a circular blade attached to the drive shaft for cutting nails and shingles, a handle adjustably attached to the frame, and a shield removably attached to the frame for enclosing a portion of the circular blade. The tapered ends of the frame project under the shingles while the circular blade simultaneously cuts the nails and shingles. The shingles are elevated along the tapered ends until they are completely removed from the roof decking. The circular blade ensures that all nails within the roof decking are cut flush to the surface of the roof decking.
REFERENCES:
patent: 4860450 (1989-08-01), Achille
patent: 5009131 (1991-04-01), Alto et al.
patent: 5013092 (1991-05-01), Kulhawy
patent: 5076119 (1991-12-01), Wenz
Bagnell David J.
Neustel Michael S.
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