Automated roofing material removal machine and method

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working

Reexamination Certificate

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Details

C030S170000, C081S045000

Reexamination Certificate

active

07552976

ABSTRACT:
A roofing material removal machine and method for removing roofing materials wherein the machine travels along guide rails mounted on a roof surface and roofing material lifting elements carried by the machine are operated to lift the roofing materials as the machine moves along the guide rails after which the removed materials are conveyed to a collection receptacle. A remote control device may be used to control power to and movement of the machine along the guide rails.

REFERENCES:
patent: 1415949 (1922-05-01), Perelman
patent: 2749103 (1956-06-01), Clemenzi
patent: 3223451 (1965-12-01), Orr
patent: 3740099 (1973-06-01), Lenzner
patent: 4232906 (1980-11-01), Torbesson
patent: 4269450 (1981-05-01), Welborn
patent: 4366991 (1983-01-01), Hilshorst
patent: 4477989 (1984-10-01), Vachon
patent: 4673219 (1987-06-01), Perciful
patent: 5205103 (1993-04-01), Burton
patent: 5218766 (1993-06-01), Himebaugh
patent: 2004/0083679 (2004-05-01), Shinn et al.

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