Modular lift assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7854423
SERIAL NO

12189002

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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

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Patent Owner(s)

Patent OwnerAddress
ELECTRONIC THEATRE CONTROLS INC3031 PLEASANT VIEW ROAD P O BOX 620979 MIDDLETON WI 53562-0979

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoffend,, Jr Donald A Pittsford, US 7 57

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