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Class Information
Number: 137/800
Name: Fluid handling > With closure
Description: Subject matter wherein the device is provided with removable cap or similar closing means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6978800 |
Closure device with self-aligning poppet |
Dec. 27, 2005 |
| 6786239 |
Hub and method for storage of a spigot cap |
Sep. 7, 2004 |
| 6688326 |
Locking fire hydrant |
Feb. 10, 2004 |
| 6341762 |
Service valve and use of same in reaction control system |
Jan. 29, 2002 |
| 6176266 |
Housing block |
Jan. 23, 2001 |
| 6158455 |
Antifreeze cap for faucet |
Dec. 12, 2000 |
| 6112761 |
Fire hydrant locking device and wrench |
Sep. 5, 2000 |
| 5957154 |
Fire hydrant adaptor and cover |
Sep. 28, 1999 |
| 5738285 |
Secondary seal for the pneumatic discharge nozzle of a covered hopper car |
Apr. 14, 1998 |
| 5727590 |
Tamper resistant construction for hydrant actuating nut |
Mar. 17, 1998 |
| 5722450 |
Tamper resistant construction for hydrant |
Mar. 3, 1998 |
| 5682917 |
Overflow and isolation valve |
Nov. 4, 1997 |
| 5632301 |
Tamper resistant construction for hydrant |
May. 27, 1997 |
| 5630442 |
Tamper resistant construction for hydrant actuating nut |
May. 20, 1997 |
| 5588460 |
Fire hydrant valve guide with locking sleeve and wrench therefor |
Dec. 31, 1996 |
| 5549133 |
Security device and system for preventing unauthorized access to and operation of fire hydrants |
Aug. 27, 1996 |
| 5535784 |
Aircraft waste system drain valve |
Jul. 16, 1996 |
| 5464114 |
Cap for gas outlet nozzles |
Nov. 7, 1995 |
| 5392826 |
Aircraft waste system drain valve |
Feb. 28, 1995 |
| 5303741 |
Plug for temporarily sealing the end of a pipe |
Apr. 19, 1994 |
| 5072750 |
Fire hydrant closures |
Dec. 17, 1991 |
| 5033501 |
Fire hydrant cap and actuating tool therefor |
Jul. 23, 1991 |
| 4979885 |
Compressor with sealing means for internal gas and lubricant and having capability of lowering internal gas pressure |
Dec. 25, 1990 |
| 4936336 |
Tamperproof construction for hydrant actuating nut |
Jun. 26, 1990 |
| 4878515 |
Water access preventer |
Nov. 7, 1989 |
| 4827969 |
Cover for a hydrant |
May. 9, 1989 |
| 4825898 |
Tamper prevention device for fire hydrants |
May. 2, 1989 |
| 4785484 |
Control valve |
Nov. 22, 1988 |
| 4727900 |
Tamper-proof hydrant cover |
Mar. 1, 1988 |
| 4651771 |
Hydrant protective cap and cover structure and operating wrench therefor |
Mar. 24, 1987 |
| 4633896 |
Operating nut for fire hydrant |
Jan. 6, 1987 |
| 4602654 |
Coupling for fire hydrant-fire hose connection |
Jul. 29, 1986 |
| 4566481 |
Tamperproof fire hydrants |
Jan. 28, 1986 |
| 4556080 |
Casing with assisted opening for protecting an apparatus in the form of a post |
Dec. 3, 1985 |
| 4554944 |
Operating wrench for tamperproof hydrants |
Nov. 26, 1985 |
| 4526193 |
Security cap assembly and actuator |
Jul. 2, 1985 |
| 4484595 |
Tamper-proof cover for the operating nut of a fire hydrant |
Nov. 27, 1984 |
| 4418716 |
Two-way flow valve |
Dec. 6, 1983 |
| 4398556 |
Fire hydrant cover |
Aug. 16, 1983 |
| 4397332 |
Standpipe cap locking means |
Aug. 9, 1983 |
| 4380245 |
Antifreeze cover assembly for external faucets |
Apr. 19, 1983 |
| 4379469 |
Fire hydrant cap with recessed valve |
Apr. 12, 1983 |
| 4369807 |
Protective fire hydrant guard |
Jan. 25, 1983 |
| 4356839 |
Tamper resistant valve actuator for fire hydrant |
Nov. 2, 1982 |
| 4280525 |
Tamperproof cap assembly for hydrant |
Jul. 28, 1981 |
| 4261386 |
Sewer relief valve |
Apr. 14, 1981 |
| 4199008 |
Wet sealed standpipe cap |
Apr. 22, 1980 |
| 4194523 |
Loading and unloading valves |
Mar. 25, 1980 |
| 4188675 |
Conduit plug |
Feb. 19, 1980 |
| 4182361 |
Fire hydrant protection device |
Jan. 8, 1980 |
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