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Class Information
Number: 137/237
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface
Description: Fluid handling systems having (1) devices to render the system or parts thereof free from undesirable material, or (2) devices for lubricating the system or parts thereof by adding a lubricating medium to the stream of fluent material carried by the system or (3) devices for preventing leakage between the valve and a solid valve seat by introducing a liquid between the valve and its seat.










Sub-classes under this class:

Class Number Class Name Patents
137/238 Cleaning or steam sterilizing 132
137/246 Liquid supplied at valve interface 54


Patents under this class:

Patent Number Title Of Patent Date Issued
8602046 Method and a device for the cleaning of a piston-based hydraulic accumulator Dec. 10, 2013
8511345 Detecting and automatically responding to airborne hydrocarbon gas Aug. 20, 2013
8439072 Hydrocarbon gas delivery system May. 14, 2013
8375977 Ball valve with single access port Feb. 19, 2013
8356621 Device and method for extending the service life of firing installations Jan. 22, 2013
8297304 Storage container for liquid chlorosilane and closing lid therefor Oct. 30, 2012
8151815 Solenoid valve control apparatus Apr. 10, 2012
6938437 Cylindrical seal for refrigerant tube connector Sep. 6, 2005
6899115 Method and filling station for filling a motor vehicle with gaseous fuel May. 31, 2005
6832620 Apparatus for dosing lubricant into an air line Dec. 21, 2004
6699443 Liquid distributor with cleaning mechanism Mar. 2, 2004
6452672 Self cleaning optical flow cell Sep. 17, 2002
6435474 Non-contaminating gas-tight valve for semiconductor applications Aug. 20, 2002
6283141 Dosage device Sep. 4, 2001
6189555 Valve arrangements for cleaning the interior of a valve member Feb. 20, 2001
5348042 Ceramic-plate flow-control valve Sep. 20, 1994
5190359 Pressure relief valve for railway brake emergency systems Mar. 2, 1993
5181691 Mechanical part made of ceramics Jan. 26, 1993
5046054 Apparatus for distributing lubricant to air guns in a single airline air gun subarray Sep. 3, 1991
5038815 Scrubber and muffler for exhaust gas from gas-powered valve actuators Aug. 13, 1991
4646777 Flat slide valve with notched guide strips Mar. 3, 1987
4643218 Cleaner and actuator device for remote access valve controls Feb. 17, 1987
4342915 Apparatus for preventing bacterial passage into sterile fluid systems Aug. 3, 1982
4338981 Valve service apparatus Jul. 13, 1982
4026427 Charging apparatus for receptacles May. 31, 1977
3958592 Safety shut-off valve May. 25, 1976











 
 
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