Industry Patents

Patent: 10227221

Lift Assembly Systems and Methods

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Patent Number: 10227221 
Title: Lift Assembly Systems and Methods 
Abstract:

A lift assembly includes an article to be lifted between a lowered position and a raised position, a drive element coupled to the article, a power mechanism coupled to the drive element, and a power transfer mechanism coupled between the power mechanism and the drive element. The power transfer mechanism includes control electronics having a first upward limit switch adapted to deactivate the power mechanism when the article is lifted to a first upward height, and a second upward limit switch adapted to deactivate the power mechanism when the article is lifted to a second upward height higher than the first upward height.  

Country of Issue: US 
First Named Inventor: Hoffend, Florac, Lichter, Bolz 
Assignee: Electronic Theatre Controls 
Continuation or Divisional of: 9061869 
International Classification: B66D 5/16 
US Classification: B66D 5/16 
Issue Date: 03-12-2019 
Filing Date: 06-23-2015 
Application : 14/747230 
Notes:  
Link to Patent at freepatentsonline.com: 10227221 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 10227221 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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