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Class Information
Number: 137/583
Name: Fluid handling > Systems > System with plural openings, one a gas vent or access opening
Description: Systems having two or more openings at least one of which functions to vent gases to or from the system or serves as an opening permitting access thereto of persons or of tools other than those contributing to the intended fluid handling operation of the system.










Sub-classes under this class:

Class Number Class Name Patents
137/584 Access and outlet 29
137/587 Tank with gas vent and inlet or outlet 437
137/589 With vented outlet 61


Patents under this class:

Patent Number Title Of Patent Date Issued
8689816 Fuel tank vent valve assembly and method of assembly Apr. 8, 2014
8678226 Fuel container Mar. 25, 2014
8518340 Steam autoclave having condensate bleed system, and condensate drainage system for a steam autoclave Aug. 27, 2013
8443836 Ventilating apparatus May. 21, 2013
8430124 Ventilating apparatus Apr. 30, 2013
8261723 Fuel return block Sep. 11, 2012
8124010 Transfer container for pharmaceutical recipients Feb. 28, 2012
8113238 Pumping system with manifold vent Feb. 14, 2012
8109284 Bubble trap assembly for critical bioprocess applications Feb. 7, 2012
8038882 Intermittent gas flow apparatus and membrane separation apparatus Oct. 18, 2011
7810474 Venting device for fuel tank Oct. 12, 2010
7775232 Flowing-down rainwater filtration device and rainwater storage device using the same Aug. 17, 2010
7360671 Liquid reservoirs Apr. 22, 2008
7159731 Air purge valve and filter pump cover employing same Jan. 9, 2007
6217770 Apparatus and method for treatment of water Apr. 17, 2001
6173739 Addow's checkvalved FDC Jan. 16, 2001
6138852 Fuel tank Oct. 31, 2000
6093095 Method and apparatus for exhausting gases from processing tank Jul. 25, 2000
6058969 Vent system for an automatic transmission May. 9, 2000
6012599 Fuel tank Jan. 11, 2000
5988458 Spill inhibiting spout Nov. 23, 1999
5980741 Bubble trap with flat side having multipurpose supplemental ports Nov. 9, 1999
5850851 Check valve and fuel tank utilizing the same Dec. 22, 1998
5803136 Fuel tank ullage pressure reduction Sep. 8, 1998
5749402 Integrated storage and transfer system and method for spacecraft propulsion systems May. 12, 1998
5558129 Stream selector for process analyzer Sep. 24, 1996
5499656 Integrated storage and transfer system and method for spacecraft propulsion systems Mar. 19, 1996
5361805 Stream selector for process analyzer Nov. 8, 1994
5305788 Stream selector for process analyzer Apr. 26, 1994
5269342 T-fitting Dec. 14, 1993
5050639 Overfill protecting arrangement for a liquid storage tank Sep. 24, 1991
5039405 Disconnector for the protection of the watermain, with particular reference to medical plants Aug. 13, 1991
4960377 Gas/air mixing valve Oct. 2, 1990
4708674 Separate lubricating system for marine propulsion device Nov. 24, 1987
4625892 Polyolefin tank within a metallic tank Dec. 2, 1986
4332276 Fuel hose drainage apparatus Jun. 1, 1982
4211536 Poke hole closure apparatus Jul. 8, 1980
4192332 Vertical liquid storage tank and apparatus for cleaning Mar. 11, 1980
4150688 Removable fluid take-off and pressure release coupling for washing machine and the like Apr. 24, 1979
4120319 Manifold assembly for compressed air storage tank or the like Oct. 17, 1978
4094339 High temperature combustion shock deburring system Jun. 13, 1978
4063555 Cannula assembly Dec. 20, 1977
4057077 Nuclear reactor steam generator installation Nov. 8, 1977
4026323 Faucet coupler assembly May. 31, 1977











 
 
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