Door control system and release mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5576581
SERIAL NO

08153590

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ATTORNEY / AGENT: (SPONSORED)

Importance

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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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SOLID STATE COMPUTERS, INC.HAZLETON, PA1
SOLID STATE SECURITIES, INC.HAZLETON, PA2

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iannuzzi, Nelson A Hazleton, PA 2 46
Mehalshick, George M Hazleton, PA 4 67

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 5272385 Photographic and X-ray film protection system 1 1990
 
CORNELL IRON WORKS, INC. (1)
* 4386645 Side folding closure 34 1981
 
National Environmental Products, Ltd. (1)
* 5278454 Emergency capacitive energy source and circuit for damper motors and actuator motors 25 1992
 
The Cookson Company (1)
* 5082316 Release mechanism and method with alarm circuit 78 1990
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (10)
* 5850865 Rolling fire door with delayed closing mechanism 15 1997
* 6100655 Mechanical return fail-safe actuator for damper, valve, elevator or other positioning device 21 1999
7574826 Emergency door opening actuator 4 2005
* 2006/0027,346 Horizontal fireproof rolling shutter without a lower rail 1 2005
* 2006/0015,398 Intruder, theft and vandalism deterrent management system for controlling a parking area 6 2005
* 2009/0302,995 MULTI DIGITAL DOOR 5 2007
* 2010/0005,723 CONTROL SYSTEM AND TEST RELEASE DEVICE FOR AN OVERHEAD DOOR 1 2009
8825535 Management and control system for a designated functional space having at least one portal 1 2011
8831970 Virtual attendant system and parking management system 15 2012
* 2014/0361,870 UNAUTHORIZED PERSON DETERRENT APPARATUS, SYSTEM, AND METHOD OF USE THEREOF 0 2013
 
IRA J. ALLIGOOD (1)
* 5983971 Reinforced burglar- and storm-resistant cover for windows and doors 4 1997
 
SMARTDOOR HOLDINGS, INC. (3)
* 6484784 Door controlling device 64 2000
6945303 Intruder, theft and vandalism deterrent management system for controlling a parking area 14 2002
* 2003/0075,287 Intruder, theft and vandalism deterrent management system for controlling a parking area 5 2002
 
The Chamberlain Group, Inc. (2)
* 6014307 Fire door operator having an integrated electronically controlled descent device 53 1998
* 7138912 Movable barrier operations method and apparatus 25 2003
 
CIW ENTERPRISES (1)
* 2012/0216,462 Method For Vertical Acting Egress And Fire/Smoke Protection 1 2011
 
JPMORGAN CHASE BANK, N.A. (1)
* 2014/0076,502 BARRIER SYSTEMS AND ASSOCIATED METHODS, INCLUDING VAPOR AND/OR BARRIER SYSTEMS WITH MANUAL EGRESS 0 2013
 
OVERHEAD DOOR CORPORATION (9)
7299847 Fire door control system and method 11 2003
6924730 Fire door control system and method including periodic system testing 4 2003
8397787 Door release mechanism 11 2010
8770255 Door release mechanisim 1 2011
8887791 Reset mechanism for stored energy emergency barriers 0 2011
8905113 Door release mechanism 2 2013
9525308 Emergency door release with backup power 0 2014
9328547 Door release mechanism 0 2014
9598900 Reset mechanism for stored energy emergency barriers 0 2014
 
TD IP HOLDCO, LLC (2)
6259352 Door lock system 46 1998
* 6049287 Door with integrated smoke detector and hold open 30 1998
 
RITE-HITE HOLDING CORPORATION (4)
* 5743317 Impact detection system for industrial doors 20 1996
6612357 Impact detection system for industrial doors 10 1998
6598648 Industrial door system responsive to an impact 17 1999
6964289 Industrial door system responsive to an impact 9 2003
 
BRADLEY LOMAS ELECTROLOK LTD. (1)
* 2009/0139,668 FIRE CURTAIN SYSTEM 8 2007
 
CIW ENTERPRISES, INC. (5)
* 8651164 Method for vertical acting egress and fire/smoke protection 4 2011
* 9133663 Fire and smoke rated fabric door 1 2013
* 2013/0228,289 Fire and Smoke Rated Fabric Door 2 2013
* 9175513 Fire door method of operation 0 2014
* 2014/0246,154 FIRE DOOR METHOD OF OPERATION 1 2014
 
SMOKE GUARD, INC. (1)
* 9038693 Barrier systems and associated methods, including vapor and/or barrier systems with manual egress 0 2013
* Cited By Examiner