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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:
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Patent Number Title Of Patent Date Issued
8616210 Ports cap for mask assembly Dec. 31, 2013
8602064 Fluid passage closure system in compressor Dec. 10, 2013
8464743 Inline dispersal valves Jun. 18, 2013
8257336 System and device for removing pharmaceutical products Sep. 4, 2012
8176932 Defined leak path for high pressure seal May. 15, 2012
7665480 Defined lead path for high pressure seal Feb. 23, 2010
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

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