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Class Information
Number: 49/379
Name: Movable or removable closures > Latch release of movement-stored energy
Description: Device comprising a means to store potential energy upon the movement of a closure in one direction, and a means to hold the closure in that direction against return movement, and a device to release the closure from the holding means to permit the stored energy to return the closure to its beginning position.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8584402 Door opening/closing system and catch therefor Nov. 19, 2013
8480141 Hood stay apparatus for engine room in heavy construction equipment Jul. 9, 2013
8464471 Panel movement system Jun. 18, 2013
8418406 Acceleration and deceleration device with two carrier elements Apr. 16, 2013
8282175 Opening device for furniture parts which are moveable relative to one another Oct. 9, 2012
8272167 Sliding assistance mechanism and pull-in unit Sep. 25, 2012
8272165 Assist device for movable body Sep. 25, 2012
8161684 Window securing means and methods Apr. 24, 2012
7971393 Door actuation systems Jul. 5, 2011
7784219 Door opening and closing mechanism Aug. 31, 2010
7765741 Movable light latch Aug. 3, 2010
7523586 Quick close security door system Apr. 28, 2009
7255307 Closure panel arrangement Aug. 14, 2007
6942118 Container closure arrangement Sep. 13, 2005
6910302 Door hold open and controlled release mechanism Jun. 28, 2005
6766616 Opening flap, in particular flue gas escape flap, and opening mechanism therefor Jul. 27, 2004
6715715 Waterproof counterweighted pit lid Apr. 6, 2004
6684569 Self-closing access door Feb. 3, 2004
6283189 Swinging folding door and a swinging folding gate; and a swinging folding door with an emergency opening device and a swinging folding gate with an emergency opening device Sep. 4, 2001
6167654 Device for operating hinged or guided closures Jan. 2, 2001
6017083 Enclosure having a resilient cover Jan. 25, 2000
6009666 Door opening and closing mechanism Jan. 4, 2000
5950368 Waterproof pit cover Sep. 14, 1999
5941672 Rack return assembly Aug. 24, 1999
5901992 Electromechanical locking mechanism for door leaves having a door closing device May. 11, 1999
5855039 Delay door closer Jan. 5, 1999
5809697 Door closer Sep. 22, 1998
5600921 Bulkhead door assembly Feb. 11, 1997
5566508 Drive system for a sliding chamber door Oct. 22, 1996
5465862 Aircraft servicing pit lid with lift control Nov. 14, 1995
5398448 Apparatus closing mechanism, particularly for film welding devices Mar. 21, 1995
5369911 Automobile door opening apparatus Dec. 6, 1994
5335451 Insulated smoke doors for cooler/freezer applications Aug. 9, 1994
5332279 Power door operator for multi-passenger mass transit vehicles Jul. 26, 1994
5286073 Device for fastening ajar door Feb. 15, 1994
5261186 Fire door closure reset system Nov. 16, 1993
5205073 Counterbalanced door assembly with reduced initial closing force Apr. 27, 1993
5163574 Pedal trash bin Nov. 17, 1992
5140173 Microprocessor controlled door holder Aug. 18, 1992
5103591 Swing-away, emergency escape window Apr. 14, 1992
5090640 Aircraft door operating mechanism Feb. 25, 1992
5083343 Hydraulically damping apparatus for door of control part of electric and electronic goods Jan. 28, 1992
5072973 Door hold open device Dec. 17, 1991
5067277 Shutter opening device particularly for pleasure craft hatchways Nov. 26, 1991
5044680 Door holder power supply access member Sep. 3, 1991
5031860 Integrated capsulized cabin for passenger aircraft Jul. 16, 1991
5018302 Burglar bar safety latch assembly May. 28, 1991
5012610 Emergency escape frame for building apertures May. 7, 1991
4991675 Hood tilt mechanism Feb. 12, 1991
4912878 Combined displacing and cushioning means for detention cell doors Apr. 3, 1990

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