Door control system and release mechanism

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United States of America Patent

PATENT NO 5576581
SERIAL NO

08153590

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Fire control systems and release mechanisms. The release mechanisms of the present invention comprise a digital logic circuit for processing signals which are indicative of a condition in an outside environment, and for providing a trigger that will actuate the mechanical release mechanism in response to the condition, a power circuit for providing regulated power to the electronic circuit in response to the input power, the regulated power being used to operate the digital logic circuit, and a power backup circuit interfaced to the power circuit for providing the regulated power for a predetermined time in the event of an input power failure so that the digital logic circuit can be operated for the predetermined time during the input power failure.

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Patent Owner(s)

  • SOLID STATE COMPUTERS, INC.;SOLID STATE SECURITIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iannuzzi, Nelson A Hazleton, PA 2 52
Mehalshick, George M Hazleton, PA 4 88

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