Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/98
Name: Fluid handling > Self-proportioning or correlating systems > Self-proportioning flow systems
Description: Systems in which the control means maintains a predetermined ratio between flows in a plurality of flow lines.










Sub-classes under this class:

Class Number Class Name Patents
137/100 Flow comparison or differential response 133
137/101.21 Flow displacement element actuates electrical controller 42
137/99 Interconnected flow displacement elements 114
137/101.25 Liquid level response 33
137/101.31 With measuring type discharge assistant 15


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8689895 Pilot valve, method of using, and fluid system equipped therewith Apr. 8, 2014
8646475 Dosing pump unit Feb. 11, 2014
8499542 Flow balancing valve Aug. 6, 2013
8475550 Self-optimizing odorant injection system Jul. 2, 2013
8443826 Demand valve for gas mixing May. 21, 2013
8408231 Pressure balance valve Apr. 2, 2013
8349038 Self optimizing odorant injection system Jan. 8, 2013
8307902 Downhole flow control tool and method Nov. 13, 2012
8267111 Pressure balance valve Sep. 18, 2012
8162068 Pilot valve, method of using, and fluid system equipped therewith Apr. 24, 2012
7918241 Mixed water control valve having a water pressure balance function to stabilize a water temperature Apr. 5, 2011
7864062 Apparatus and method for detecting a change in a specific gravity of a fluid Jan. 4, 2011
7806134 Mixed water control valve having a water pressure balance function to stabilize a water temperature Oct. 5, 2010
7464766 Ranger/hybrid automatic self-metering nozzle, with ratio-selectable and flow meter features Dec. 16, 2008
7389786 Ultrasonic and sonic odorization systems Jun. 24, 2008
7377288 Passive device for balancing the pressure of first and second fluids and the use thereof May. 27, 2008
7367351 Tap pressure balance valve May. 6, 2008
7363934 Control valve having pressure balance effect Apr. 29, 2008
7192559 Methods and devices for high throughput fluid delivery Mar. 20, 2007
7185669 Proportioner Mar. 6, 2007
7165570 Pressure balancing cartridge for mixing valve Jan. 23, 2007
7156115 Method and apparatus for flow control Jan. 2, 2007
7143777 Control valve having pressure balance effect Dec. 5, 2006
7105096 Collection of sludge from the floor of a basin with multiple balanced-flow headers Sep. 12, 2006
7100630 Water guard pressure balancer Sep. 5, 2006
7083118 Device for injecting and mixing liquid fertilizer with water flow in a sprinkler system pipeline Aug. 1, 2006
7028702 Automatic water pressure control valve balancing temperature of mixed water Apr. 18, 2006
7021472 Collection of sludge from the floor of a basin with multiple balanced-flow headers Apr. 4, 2006
6880565 Shower bath tap valve assembly Apr. 19, 2005
6877523 Mixing valve with graduated temperature modulation Apr. 12, 2005
6763846 Fluid distribution device Jul. 20, 2004
6748974 Mixing valve with hydraulic wear plate Jun. 15, 2004
6662818 Programmable tracking pressure regulator for control of higher pressures in microfluidic circuits Dec. 16, 2003
6651688 Divider-combiner valve Nov. 25, 2003
6581622 Divider-combiner valve Jun. 24, 2003
6583525 Viscosity regulating valve Jun. 24, 2003
6546948 Mixer valve Apr. 15, 2003
6497244 Fluid flow proportioning device Dec. 24, 2002
6427713 Mixing valve with graduated temperature modulation Aug. 6, 2002
6325089 Diaphragm pressure balancing valve Dec. 4, 2001
6299657 Process for carrying out chemical reactions using a microlaminar mixer Oct. 9, 2001
6273120 Device for introducing a liquid reducing agent into an exhaust gas purification system Aug. 14, 2001
6267134 Wall mounted mixer valve with pressure balance Jul. 31, 2001
6263899 Mixing valves with ceramic flow control elements Jul. 24, 2001
6227227 Single meter blending fuel dispensing system May. 8, 2001
6196250 Pressure balanced valve assembly Mar. 6, 2001
6182682 Pressure balance device for use in a faucet Feb. 6, 2001
6176250 Pressure balanced valve assembly for proportionally mixing hot water and cold water entering therein Jan. 23, 2001
6138705 Pressure balance valve used in a pipe line Oct. 31, 2000
6123094 Single lever valve and cartridge with integral mixing chamber and divided waterway Sep. 26, 2000

1 2 3










 
 
  Recently Added Patents
Probe for ultrasound diagnostic apparatus
Radio link monitoring (RLM) and reference signal received power (RSRP) measurement for heterogeneous networks
ASICs having programmable bypass of design faults
Optical channel transport unit frames transmission having interleaved parity
Messenger bag
Fluid conduit with PTC fabric heating
Codeword-enhanced peer-to-peer authentication
  Randomly Featured Patents
Self peel flick-it seal for an opening in a container neck
Pyrazole-based cyanine dye containing quaternary ammonium cation
Methods of using Bcl-2 for the therapeutic treatment and prevention of diseases
Apparatus for mounting a remote controlled, gyro-stabilized camera externally on a helicopter
Process of reducing the oxygen content in gas mixtures
Process for producing dimethylaminomethyl copper phthalocyanine and/or its derivatives
Compositions of hepatitis C virus NS5B polymerase and methods for crystallizing same
Ink jet head
Television receiver
Nonchromate deoxidizer for aluminum alloys