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Class Information
Number: 137/614
Name: Fluid handling > Systems > Flow path with serial valves and/or closures > Separable flow path section, valve or closure in each
Description: Systems in which the flow path includes joined, disconnectible, sections; one of the valves, flow controllers or closures being retained with each section.










Sub-classes under this class:

Class Number Class Name Patents
137/614.01 Common joint and valve seat faces, or sections joined by closing members 56
137/614.06 Coupling interlocked with valve, or closure or actuator 185
137/614.02 Each valve and/or closure operated by coupling motion 63
137/614.05 Valve- or closure-operated by coupling motion 242


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
5546984 Bellows-type, low spillage, quick disconnect unit Aug. 20, 1996
5546976 Condensate trap installations Aug. 20, 1996
5540266 Device for coupling containers Jul. 30, 1996
5483993 Maintainable in-line fluid connector Jan. 16, 1996
5480122 Shut-off valve for installation immediately downstream from a defective valve mounted into the compression-connection type of outlet of the defective valve Jan. 2, 1996
5379793 Ventless transfer valve and method for using same Jan. 10, 1995
5360035 Pressure balanced poppet valve for hydraulic couplings Nov. 1, 1994
5344074 Dispensing apparatus having a removable variable proportioning and metering device Sep. 6, 1994
5329960 Pressure actuated valve assembly Jul. 19, 1994
5322092 System for transfering used refrigerant from multiple small recovery cylinders to large shipping cylinder Jun. 21, 1994
5316033 Coupling for connecting hydraulic lines May. 31, 1994
5289850 Fluid coupling having vent valve assembly Mar. 1, 1994
RE34426 Dispensing tool assembly for charging a refrigerant into a system Nov. 2, 1993
5246200 Quick shut-off valve for in-line installation with a defective valve Sep. 21, 1993
5244010 Snap and seal coupler for refrigeration systems Sep. 14, 1993
5222520 Fuel hose breakaway unit Jun. 29, 1993
5215120 Apparatus and method for reducing valve emissions Jun. 1, 1993
5211197 Quick disconnect liquid line coupling with volumertric expansion couping element May. 18, 1993
5191914 Redundant valve disconnect coupling Mar. 9, 1993
5165439 Frangible connectors Nov. 24, 1992
5159955 Coupling part comprising pressure-reducing means Nov. 3, 1992
5150735 Containment valve that allows contamination free transfer Sep. 29, 1992
5148839 Valve assemblies for filling containers with pressurized gas Sep. 22, 1992
5123446 Dual seal coupling Jun. 23, 1992
5099882 Pressure balanced hydraulic coupling with metal seals Mar. 31, 1992
5078168 Apparatus for electrostatically isolating conductive coating materials Jan. 7, 1992
5063964 Pipe coupling used with automatic connecting and disconnecting device Nov. 12, 1991
5042840 Refillable tank car for storing and transporting fluids Aug. 27, 1991
5016671 Hydraulic coupling May. 21, 1991
5012838 Solenoid valve incorporating liquid surface detecting valve May. 7, 1991
4991621 Pressure regulator Feb. 12, 1991
4989630 Quick-acting coupling Feb. 5, 1991
4989638 Substantially leak-free disconnection apparatus Feb. 5, 1991
4974635 Coupler with spring-locked valves Dec. 4, 1990
4971096 Wing fold frangible valve Nov. 20, 1990
4951710 Pipe coupling Aug. 28, 1990
4949745 Clean air connector Aug. 21, 1990
4944329 Automatically-operated redundant-type fluid coupling device Jul. 31, 1990
4896697 Coupling for connecting liquid conduits Jan. 30, 1990
4896698 Pressure adjusting device for controlling liquid gas flow rate Jan. 30, 1990
4858648 Self-flushing hydraulic coupling Aug. 22, 1989
4854345 Valve coupler with decompression Aug. 8, 1989
4850387 Liquid dispensing valve Jul. 25, 1989
4815495 Quick disconnect having reduced fluid pressure drop Mar. 28, 1989
4813454 Undersea coupling with pressure balancing ports Mar. 21, 1989
4805417 Dispensing tool assembly for charging a refrigerant into a system Feb. 21, 1989
4745948 Coupling device May. 24, 1988
4703774 Subsea safety check valve system Nov. 3, 1987
4702278 Valve couplers designed to allow their connection despite the presence of considerable residual pressure in user lines Oct. 27, 1987
4672998 Hydraulic swivel connector Jun. 16, 1987

1 2 3 4










 
 
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