Electrical controller for roofing apparatus

Details Electrical controller for roofing apparatus Electrical controller for roofing apparatus

1998-10-16

2000-08-15

Friedman, Carl D.

Static structures (e.g., buildings)

Machine or implement

Roofing

524041, 524074, 5274611, 242557, 2425985, 2426103, E04D 1504

Patent

active

061017825

ABSTRACT:
A controller for propelling a carriage along a plurality of purlins, and method of using same are disclosed. A plurality of carriage sections are joined to form a continuous carnage spanning a plurality of purlins. A plurality of puller assemblies are attached to selective ones of the carriage sections. A controller is connected to the plurality of puller assemblies. The controller can be actuated to a master control mode which simultaneously engages the plurality of puller assemblies, thereby propelling the carriage along the purlins. The controller can also be selectively actuated to a selective mode which engages one of the puller assemblies.

REFERENCES:
patent: 3983676 (1976-10-01), Gilpin
patent: 4068446 (1978-01-01), Brueske
patent: 4864837 (1989-09-01), Fielden, Jr.
patent: 4967535 (1990-11-01), Alderman
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patent: 5551203 (1996-09-01), Alderman et al.
patent: 5653081 (1997-08-01), Wenrick et al.
patent: 5653083 (1997-08-01), Alderman et al.
patent: 5664740 (1997-09-01), Alderman et al.
patent: 5685123 (1997-11-01), Alderman et al.

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