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US Patent 11511978 Lift assembly systems and methods

Patent 11511978 was granted and assigned to Electronic Theatre Controls on November, 2022 by the United States Patent and Trademark Office.

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Is a
Patent
Patent

Patent attributes

Patent Applicant
‌
Electronic Theatre Controls
Current Assignee
‌
Electronic Theatre Controls
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11511978
Date of Patent
November 29, 2022
Patent Application Number
17195725
Date Filed
March 9, 2021
Patent Citations
‌
US Patent 10227221 Lift assembly systems and methods
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US Patent 10968085 Lift assembly systems and methods
Patent Primary Examiner
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Emmanuel M Marcelo
CPC Code
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B66D 1/38
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B66D 3/20
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B66D 5/16
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A63J 1/028
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B66D 3/26
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B66D 1/14

A lift assembly including an article to be lifted between a lowered position and a raised position, a flexible drive element coupled to the article and defining a longitudinal axis, a power mechanism coupled to the flexible drive element, a drum powered by the power mechanism and dimensioned to facilitate winding of the flexible drive element onto the drum, and a cable keeper providing a force on the flexible drive element to bias the flexible drive element toward the drum.

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