Modular lift assembly

Implements or apparatus for applying pushing or pulling force – Device or member for contacting and guiding moving cable – Including rotatable – cable contacting – pulley wheel element

Reexamination Certificate

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Details

C254S388000, C254S331000

Reexamination Certificate

active

11325401

ABSTRACT:
A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to the frame. A plurality of head blocks are connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up maintains a predetermined fleet angle between a take off point from the drum and the head block.

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patent: 299 12 572 (1999-09-01), None
Cyclorama Batten Systems, Regional Performing Arts Center, Dec. 15, 1999.

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