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Class Information
Number: 169/40
Name: Fire extinguishers > Sprinkler heads > Lever
Description: The valve, is supported by a lever or system of levers which communicate the thrust of the valve to the frame at two or more separated points.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7584803 |
Sprinkler with motion limited lever |
Sep. 8, 2009 |
| 7353882 |
Horizontal sidewall fire protection sprinklers |
Apr. 8, 2008 |
| 7314094 |
Concealed cover for a fire sprinkler head |
Jan. 1, 2008 |
| 7290618 |
Fast response sprinkler head and fire extinguishing system |
Nov. 6, 2007 |
| 7275603 |
Concealed pendent fire protection sprinkler with drop-down deflector |
Oct. 2, 2007 |
| 7222678 |
Sprinkler head |
May. 29, 2007 |
| 7066273 |
Apparatus and methods for sensing of fire and directed fire suppression |
Jun. 27, 2006 |
| 6976543 |
Low pressure, extended coverage, upright fire protection sprinkler |
Dec. 20, 2005 |
| 6962208 |
Compact pendant sprinkler head |
Nov. 8, 2005 |
| 6960321 |
Sterilization of fire sprinkler systems |
Nov. 1, 2005 |
| 6942040 |
Method, chemical and automatic fire extinguishing system using liquified CO.sub.2 to regulate the distribution of fire extinguishing agents |
Sep. 13, 2005 |
| 6868917 |
Low pressure, early suppression fast response sprinklers |
Mar. 22, 2005 |
| 6585054 |
Fast response sprinkler head and fire extinguishing system |
Jul. 1, 2003 |
| 6502643 |
Low pressure, early suppression fast response sprinklers |
Jan. 7, 2003 |
| 6454017 |
Upright fire protection nozzle |
Sep. 24, 2002 |
| 6374919 |
Concealed horizontal sidewall sprinkler arrangement |
Apr. 23, 2002 |
| 6336509 |
Low pressure fast response bulb sprinklers |
Jan. 8, 2002 |
| 6123153 |
Fire protection sprinkle and release mechanism |
Sep. 26, 2000 |
| 5669449 |
Directional sprinklers |
Sep. 23, 1997 |
| 5234059 |
Frangible bulb sprinkler head |
Aug. 10, 1993 |
| 5083616 |
Ceiling sprinkler |
Jan. 28, 1992 |
| 5072792 |
Concealed sprinkler head assembly |
Dec. 17, 1991 |
| 5022468 |
Automatic sprinkler activator |
Jun. 11, 1991 |
| 4977963 |
Partially concealed fast response sprinkler head |
Dec. 18, 1990 |
| 4976320 |
Concealed sprinkler with drop down deflector assembly, and improved fusible valve lever assembly |
Dec. 11, 1990 |
| 4930578 |
Automatic sprinkler |
Jun. 5, 1990 |
| 4901799 |
Sprinkler head having protuberant ridge valve seat |
Feb. 20, 1990 |
| 4893679 |
Heat-responsive element for fire protection sprinklers or the like |
Jan. 16, 1990 |
| 4596289 |
Quick response automatic fire sprinkler head |
Jun. 24, 1986 |
| 4596483 |
Temperature responsive linkage element |
Jun. 24, 1986 |
| 4585069 |
Liquid discharge nozzle |
Apr. 29, 1986 |
| 4570720 |
Sprinkler head |
Feb. 18, 1986 |
| 4503675 |
Fail-safe actuator with fusible link |
Mar. 12, 1985 |
| 4405018 |
Deflector with surface for circumferentially redistributing fluid for improved spray uniformity |
Sep. 20, 1983 |
| 4358045 |
Tip positioning brazing fixture |
Nov. 9, 1982 |
| 4248309 |
Fire extinguishing system utilizing the engine cooling system |
Feb. 3, 1981 |
| 4228859 |
Sprinkler head having a plurality of supporting legs |
Oct. 21, 1980 |
| 4214631 |
Sprinkler head with heat sensitive cover release and valve release mechanism |
Jul. 29, 1980 |
| 4105076 |
Concealed sprinkler head |
Aug. 8, 1978 |
| 4060201 |
Sprinkler head |
Nov. 29, 1977 |
| 4015665 |
Concealed sprinkler head |
Apr. 5, 1977 |
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