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Class Information
Number: 137/77
Name: Fluid handling > Destructible or deformable element controlled > Heat destructible or fusible > Safety cut-off > With external closing means
Description: Apparatus including a means for closing the valve by manual or external means in addition to the operation in response to the fusible or heat destructible element.










Patents under this class:

Patent Number Title Of Patent Date Issued
7913928 Adaptive structures, systems incorporating same and related methods Mar. 29, 2011
7743780 Walker glide Jun. 29, 2010
7677526 Mechanical override for a valve actuator Mar. 16, 2010
7293575 Mechanical override for a valve actuator Nov. 13, 2007
7004445 Mechanical override for a valve actuator Feb. 28, 2006
5913326 Automatic closing device for a shut-off device Jun. 22, 1999
5887849 Thermal release apparatus for coupling a damper actuator to a damper blade assembly Mar. 30, 1999
5782171 Disconnect mechanisms between a deep fat fry pot and filter vat Jul. 21, 1998
5730170 Emergency gas or fuel shut-off device Mar. 24, 1998
5577525 Thermal release apparatus for coupling a damper actuator to a damper blade assembly Nov. 26, 1996
5562118 Emergency shutoff valve with a fusible link and method Oct. 8, 1996
5540250 Quick-disconnect fluid coupling Jul. 30, 1996
5343884 Self-closing gate valve system and external self-closing actuator mechanism therefor Sep. 6, 1994
5298088 One-quarter turn ball valve closer Mar. 29, 1994
5067510 Adjustable, fusible, manually operable valve lock-open assembly Nov. 26, 1991
5048552 Universal trip valve operators and trip actuating seismic vibration sensors and transducers therefor Sep. 17, 1991
4969482 Emergency fuel shut-off valve Nov. 13, 1990
4924760 Roof vent damper May. 15, 1990
4827963 Heat sensitive shaft locking apparatus and valve using same May. 9, 1989
4811752 Auxiliary remote valve actuator Mar. 14, 1989
4788800 Fire stop device Dec. 6, 1988
4738189 Pneumatically operated fire damper Apr. 19, 1988
4619434 Heat sensitive motor valve jack Oct. 28, 1986
4559867 Round damper and fusible link therefor Dec. 24, 1985
4555981 Damper operator for use with air, smoke and fire dampers Dec. 3, 1985
4538632 Shutoff valve for fuel truck or tanker drain off downspouts Sep. 3, 1985
4472999 Damper operator for use with air, smoke and fire dampers Sep. 25, 1984
4469119 Pilot valve with fusible lockout knob Sep. 4, 1984
4468194 Automatic flame snuffer for storage tank vent lines with manual override Aug. 28, 1984
4432383 Attachment for safety valves Feb. 21, 1984
4421134 Heat sensitive gate valve Dec. 20, 1983
4414995 Three-way hydraulic controller Nov. 15, 1983
4335734 Float warning device Jun. 22, 1982
4333489 Spring-motor dual-functioning mechanism Jun. 8, 1982
4310012 Thermal and remote valve control Jan. 12, 1982
4307546 Fire retardant partitioning for openings for plastic pipe lines Dec. 29, 1981
4275754 Automatic valve actuator Jun. 30, 1981
4241748 Butterfly smoke/fire damper Dec. 30, 1980
4240455 Heat responsive back seat arrangement for valve operator with manual override Dec. 23, 1980
4196636 Mechanism control device Apr. 8, 1980
RE30204 Control damper Feb. 5, 1980
4131142 Safety valve for fuel dispensers including vapor recovery systems Dec. 26, 1978
4109423 Fire-proof device for a tube of fusible material which extends through a wall Aug. 29, 1978
4100931 Fire damper Jul. 18, 1978
4099551 Thermal-manual control valve Jul. 11, 1978
4060096 Ventilator valve Nov. 29, 1977
4004601 Quick closing emergency valve Jan. 25, 1977
3996952 Control damper Dec. 14, 1976
3958592 Safety shut-off valve May. 25, 1976











 
 
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