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Class Information
Number: 137/101.25
Name: Fluid handling > Self-proportioning or correlating systems > Self-proportioning flow systems > Liquid level response
Description: Subject matter comprising at least one means which senses the level of a liquid in means to receive an accumulation thereof and in response thereto exercises a control of the flow in one or more of the flow lines.










Sub-classes under this class:

Class Number Class Name Patents
137/101.27 Float controlled weir or valve 27
137/101.29 Swinging outlet pipe controller 2


Patents under this class:

Patent Number Title Of Patent Date Issued
8600568 Fluid flow management system and associated methods Dec. 3, 2013
8584691 Additive dispensing system and method Nov. 19, 2013
8267108 Additive dispensing system and method Sep. 18, 2012
7448102 Method for controlling mixtures especially for fabric processing Nov. 11, 2008
7357142 Apparatus for continuously aspirating a fluid from a fluid source Apr. 15, 2008
6491812 Ice water cooling system Dec. 10, 2002
6269831 Precision volumetric measuring and mixing apparatus Aug. 7, 2001
6101452 Method and apparatus for dispensing fluids Aug. 8, 2000
6050282 Batch mixing control method and apparatus Apr. 18, 2000
5979478 Apparatus and method for treating water in a water supply system Nov. 9, 1999
5792343 Brine supply system Aug. 11, 1998
5718006 Fluid dispenser Feb. 17, 1998
5701924 Apparatus and method for detecting and handling liquid separation in liquid emulsions Dec. 30, 1997
5406970 Chemical injection system Apr. 18, 1995
5339889 Controlled biocide feeder for cooling water systems Aug. 23, 1994
5339854 Conservation system and method Aug. 23, 1994
5331994 Fuel additive dispensing system Jul. 26, 1994
5213694 Water treatment control system for treating cooling tower makeup water May. 25, 1993
5203367 Apparatus for supplying liquid under constant pressure Apr. 20, 1993
5127542 Process and apparatus for proportioning liquids Jul. 7, 1992
5061450 Isolation fluid control device and water cup Oct. 29, 1991
4823987 Liquid mixing system and method Apr. 25, 1989
4505288 Pneumatically controlled dump valve system for gas scrubbers Mar. 19, 1985
4474476 Chemical printing liquid method and system Oct. 2, 1984
4436674 Vapor mass flow control system Mar. 13, 1984
4407353 Waste heat recovery device for preventing corrosion by sulfur oxides Oct. 4, 1983
4393013 Vapor mass flow control system Jul. 12, 1983
4320775 Liquid metering unit responsive to the weight of the metered liquid Mar. 23, 1982
4312595 Automatic fluid mixing system and a multi compartmented container therefore Jan. 26, 1982
4180083 System for controlling flow rate in pipelines Dec. 25, 1979
4039637 Fuel supply systems for heat generators Aug. 2, 1977
4033295 Arrangement for reducing vacuum in milking machines Jul. 5, 1977
3970099 Liquid level responsive vent valve Jul. 20, 1976











 
 
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