Cutlery – Shell openers – Nutcrackers
Patent
1988-01-22
1989-06-13
Yost, Frank T.
Cutlery
Shell openers
Nutcrackers
299 37, E04D 1500
Patent
active
048379336
ABSTRACT:
A machine for effectively and efficiently removing tiles as well as other covering material from the exterior of roof surfaces such as when the roof is to be repaired or such covering material is to be replaced. The machine travels over the roof surface and includes a separating structure reciprocally positionable between a forwardly directed separating engagement with the covering material and a lifting position relative thereto as the material is physically separated from the surface of the roof. In operation the machine may travel, under an operators control, continuously back and forth along the length of the roof until all the covering material has been removed therefrom.
REFERENCES:
patent: 2519138 (1950-08-01), Katz
patent: 3074090 (1963-01-01), Thompson
patent: 3779605 (1973-12-01), Nieman
patent: 4277104 (1981-07-01), Sanchez
patent: 4709479 (1987-12-01), Lavelette
Folkerts Michael D.
Prescott Charles J.
Yost Frank T.
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