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Class Information
Number: 137/625.18
Name: Fluid handling > Systems > Multi-way valve unit > Plural noncommunicating flow paths
Description: Devices having a plurality of distinct conduits or passages, flow through which is so controlled by a single valve unit that flow lines never unite.










Sub-classes under this class:

Class Number Class Name Patents
137/625.19 Rotary plug 62


Patents under this class:
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Patent Number Title Of Patent Date Issued
8657209 Apparatus and a system enabling a user to drink multiple liquids through a single straw Feb. 25, 2014
8568585 Water distribution system with dual use water treatment unit Oct. 29, 2013
8544349 Fluid transfer device Oct. 1, 2013
8485361 Large container for handling and transporting high-purity and ultra high purity chemicals Jul. 16, 2013
8474479 Multifunction relief valve and airplane emergency hydraulic power source unit having the same Jul. 2, 2013
8434512 Rotating disc diluter for fluid flows May. 7, 2013
8356625 Device for the controlled guidance of a polymer melt Jan. 22, 2013
8347913 Combustible fuel piping system and combustible fuel supply system using the same Jan. 8, 2013
8240581 Apparatus and a system enabling a user to drink multiple liquids through a single straw Aug. 14, 2012
8225817 Flow distributing valve Jul. 24, 2012
8204672 Apparatus and method for detecting operational issues based on single input single output system dynamics Jun. 19, 2012
8162237 Air:fluid distribution system and method Apr. 24, 2012
8118056 Mixing device with valve disks Feb. 21, 2012
8029672 Filter head Oct. 4, 2011
7735805 Water control valve Jun. 15, 2010
7717061 Gas switching mechanism for plasma processing apparatus May. 18, 2010
7673813 Portable spray apparatus Mar. 9, 2010
7487797 4 port fluid cartridge Feb. 10, 2009
7059347 Air bleed apparatus for a burner unit Jun. 13, 2006
7037087 Capacity control valve and control method therefor May. 2, 2006
6973936 Fluid injection system Dec. 13, 2005
6966336 Fluid injection microvalve Nov. 22, 2005
6857448 Air bleed apparatus for a burner unit Feb. 22, 2005
6818068 Conveyor for treating hollow bodies comprising an advanced pressure distribution circuit Nov. 16, 2004
6647965 Pump assembly and method Nov. 18, 2003
6543480 Laundry faucet valve and timer control Apr. 8, 2003
6526974 Pressure control in CPAP treatment or assisted respiration Mar. 4, 2003
6412513 Valve having an easily sealing configuration Jul. 2, 2002
6170524 Fast valve and actuator Jan. 9, 2001
6152176 Air valve structure for alternately aerated three-pipe style air bed Nov. 28, 2000
6067864 Multiport valve system through which sample gas continuously flows in selected and non selected ports May. 30, 2000
5954092 Pulsed flow generator Sep. 21, 1999
5938098 Servo valve Aug. 17, 1999
5925023 Multi stage type flow rate switching device Jul. 20, 1999
5839471 Sealing member for a valve Nov. 24, 1998
5595218 Valve construction Jan. 21, 1997
5577637 Cutting-off device for stock materials packed in can-like containers, more particularly filler materials and putties and hardener pastes Nov. 26, 1996
5571002 Plunger pump system with shuttle valve Nov. 5, 1996
5454698 Plunger pump system with shuttle valve Oct. 3, 1995
5437304 Device for alternate admission of a liquid or a pressurized gas to one or more moulds used in plastics processing Aug. 1, 1995
5398737 Connecting mechanism Mar. 21, 1995
5360321 Feeding reservoir for two-cylinders thick-matter pumps Nov. 1, 1994
5288323 Apparatus with a shunt system for processing printed circuit board substrates Feb. 22, 1994
5236015 Position-controlled proportional directional valve Aug. 17, 1993
5144984 Arrangement for filling and tapping an anesthetic container Sep. 8, 1992
5066221 Fitting for joining at least one hybrid burner to apparatus for supplying a fluid fuel Nov. 19, 1991
5060694 Filler spool valve Oct. 29, 1991
5038670 Pneumatic control valve apparatus Aug. 13, 1991
5027856 Electrohydraulic signal converter Jul. 2, 1991
4976285 Universal self-venting drain valve Dec. 11, 1990

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