Motorized assist counterweight system for theatrical overhead ri

Details Motorized assist counterweight system for theatrical overhead ri Motorized assist counterweight system for theatrical overhead ri

1998-06-25

1999-12-07

Walsh, Donald P.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

254280, 254290, 254393, 160332, 472 78, B66D 126

Patent

active

059969709

ABSTRACT:
In a theatrical rigging system, a number of motors can be placed on platforms which can move upon rails to be connected to different theatrical rigging elements. The motors can be randomly attached to operate different overhead hanging devices.

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patent: 5031574 (1991-07-01), Mcdowell
patent: 5790407 (1998-08-01), Strickland et al.

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