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Class Information
Number: 137/154
Name: Fluid handling > Diverse fluid containing pressure systems
Description: Apparatus which contain under pressure a plurality of fluids having diverse characteristics such as fluid phase (i.e., gas and liquid) or specific gravity, and which fluids are in contact in at least a part of the system.

Sub-classes under this class:

Class Number Class Name Patents
137/171 Fluid separating traps or vents 67
137/170.1 Foam control in gas charged liquids 19
137/155 Gas lift valves for wells 66
137/156 Gas pressure discharge of liquids feed traps (e.g., to boiler) 4
137/206 Gas pressure storage over or displacement of liquid 53
137/205 Liquid filling by evacuating container 262
137/205.5 Main line flow displaces additive from shunt reservoir 61

Patents under this class:

Patent Number Title Of Patent Date Issued
8534489 Demisable fuel supply system Sep. 17, 2013
8524154 System and method for pseudo-continuous measurement of metabolite concentrations in a mammalian body Sep. 3, 2013
8511503 Fuel tank Aug. 20, 2013
8511504 Demisable fuel supply system Aug. 20, 2013
8122903 Close-coupled purgeable vaporizer valve Feb. 28, 2012
8061659 Method for detecting complete draining of a propellant tank and for propellant management on board a satellite Nov. 22, 2011
7882832 Solar pump systems and related methods Feb. 8, 2011
7857939 Apparatus for treating wafers using supercritical fluid Dec. 28, 2010
7621291 Fuel tank with specialized tank outlet for spacecraft Nov. 24, 2009
7582372 Pressure regulator for fuel cell Sep. 1, 2009
7395832 Fuel tank for spacecraft Jul. 8, 2008
7261120 Device for splitting a two-phase stream into two or more streams with the desired vapor/liquid ratios Aug. 28, 2007
6044857 Electronic controller for a modulating valve Apr. 4, 2000
5701924 Apparatus and method for detecting and handling liquid separation in liquid emulsions Dec. 30, 1997
5653250 Vapor-liquid equilibrium and interfacial tension measuring apparatus and method Aug. 5, 1997
5494067 Device for regulating and damping a multiphase flow Feb. 27, 1996
5293895 Liquid management apparatus for spacecraft Mar. 15, 1994
5279323 Liquid management apparatus for spacecraft Jan. 18, 1994
5064153 System for determining the depletion of propellant tanks onboard a spacecraft Nov. 12, 1991
4846854 System for venting gas from a liquid storage tank Jul. 11, 1989
4768541 Means of expelling parallel tanks to low residuals Sep. 6, 1988
4754854 Pin boot protector in disc brake assembly Jul. 5, 1988
4743278 Passive propellant management system May. 10, 1988
4733531 Liquid-propellant management system with capillary pumping vanes Mar. 29, 1988
4682622 Pressure regulating valve Jul. 28, 1987
4681129 Apparatus for uniformly distributing a two-phase mixture Jul. 21, 1987
4667694 Safety valve for compressed liquid gas May. 26, 1987
4641679 Feed device for a two-phase fluid pump and a hydrocarbon producing installation with such feed device Feb. 10, 1987
4627457 Method and apparatus for treating a plurality of zones of a processing line Dec. 9, 1986
4626131 Underground liquid storage system and method Dec. 2, 1986
4616669 Mixing fluids Oct. 14, 1986
4399831 Surface tension storage tank Aug. 23, 1983
4294274 Hydrogen injection into gas pipelines and other pressurized containers Oct. 13, 1981
4203817 Method of and device for moving liquid samples May. 20, 1980
4188967 Method of generating liquid concentration gradients hydrostatically Feb. 19, 1980
4051859 Apparatus for draining fluid from a continuously evacuated space Oct. 4, 1977
4027690 Gravity-type steam accumulator Jun. 7, 1977
4022687 Method for the non-mechanical conveying of a collected quantity of liquid and apparatus for the performance of the method May. 10, 1977
4014358 Loading and unloading of combustible liquids on, and from tanker ships Mar. 29, 1977
3976104 Completely, draining, nonleaking pneumatic valve Aug. 24, 1976
3948607 Transfer system for use in analysis apparatus Apr. 6, 1976

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