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Class Information
Number: 137/593
Name: Fluid handling > Systems > Head-establishing standpipe or expansion chamber (e.g., surge tanks)
Description: Systems comprising an expansion chamber or a vertically extending pipe or tank adapted to be placed in open communication with a source of liquid and functioning as a storage or pressure-maintaining reservoir or to increase the head against which liquid from the source must exert pressure.

Patents under this class:

Patent Number Title Of Patent Date Issued
8066029 Persuasive environmental recovery system Nov. 29, 2011
6572350 Screw compressor Jun. 3, 2003
6560985 Universal accumulator assembly May. 13, 2003
6503066 Hydrostatic pressure test pump Jan. 7, 2003
6435209 Method and apparatus for preventing ice formation in water towers Aug. 20, 2002
6412509 Passive surge control method for compression systems and relative device Jul. 2, 2002
6237629 Apparatus for positive water retention and circulation in storage tanks May. 29, 2001
6058958 Pulsatile flow system and method May. 9, 2000
5664599 Flow controller for a particle sensor Sep. 9, 1997
5593574 Water treatment system particularly for use in aquaculture Jan. 14, 1997
5379791 Dual-head flow controller and method Jan. 10, 1995
5343888 Automatic syphon system Sep. 6, 1994
5333524 Pressure stabilizer for barfeed apparatus Aug. 2, 1994
5327800 System using vertical exhaust passage for maintaining primed condition of hydraulic circuits of an automatic transmission Jul. 12, 1994
5265942 Variable response fluid brake system regulators Nov. 30, 1993
5058384 Digital actuator Oct. 22, 1991
5054519 Recirculating chemical bath with inflow and self balancing outflow Oct. 8, 1991
5039405 Disconnector for the protection of the watermain, with particular reference to medical plants Aug. 13, 1991
4930552 Drain standpipe Jun. 5, 1990
4928754 Heat exchanging apparatus May. 29, 1990
4911197 Drain standpipe Mar. 27, 1990
4852609 Sump pump adaptor Aug. 1, 1989
4815494 Water tower Mar. 28, 1989
4779769 Dispensing device for liquids Oct. 25, 1988
4765366 Temperature compensated control valve for automatic transmissions Aug. 23, 1988
4756327 Irrigation head control device and method Jul. 12, 1988
4700734 Water collecting and spring box and gauging system and holding tank Oct. 20, 1987
4660588 Method for temporarily storing fluids Apr. 28, 1987
4564500 Oil pot for reactor coolant pump motor and apparatus for controlling the oil level therein Jan. 14, 1986
4552175 Arrangement of fuel tanks for vehicles Nov. 12, 1985
4518009 Device for fuel tanks for cars May. 21, 1985
4431026 Pressure control valve Feb. 14, 1984
4427024 Flexible standpipe and subsurface pressure seal Jan. 24, 1984
4425928 Liquid discharge apparatus Jan. 17, 1984
4383551 Anti-hammer device for pulsed liquid-merging system May. 17, 1983
4367785 Liquid circulation method and apparatus Jan. 11, 1983
4317539 Trickle irrigation Mar. 2, 1982
4263498 Expansion chamber arrangement for water heating and dispensing device Apr. 21, 1981
4257454 Drain plugs Mar. 24, 1981
4241578 Fluid storage tank for an industrial vehicle Dec. 30, 1980
4160461 Water and energy conservation system Jul. 10, 1979
4142470 Diesel locomotive fuel tank vent Mar. 6, 1979
4124067 Pressurization apparatus with an intermediate reserve vessel Nov. 7, 1978
4077430 Standpipe adapter for sink drains of varied diameter Mar. 7, 1978
4074684 Drain system for protecting buildings against flooding and method Feb. 21, 1978
4072168 Dual standpipe arrangement supplementing a water supply system Feb. 7, 1978
4069839 Gas pressure regulator Jan. 24, 1978

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