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OVERHEAD DOOR SPRING ALERT SAFETY SYSTEM

  • US 20150059989A1
  • Filed: 06/06/2014
  • Published: 03/05/2015
  • Est. Priority Date: 08/27/2013
  • Status: Abandoned Application
First Claim
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1. A safety system for overhead garage and like door structures having a counterbalance spring structure including one or more coil springs comprising:

  • devices for detecting the breaking of a door counterbalance spring and alerting an operator to a spring failure event.

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