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Class Information
Number: 137/533.11
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Reciprocating valves > Weight biased > Valve body is the weight > Ball valves
Description: Valves in which the moving element is substantially spherical.










Sub-classes under this class:

Class Number Class Name Patents
137/533.13 Removable cage 34
137/533.15 Separable seat 48


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8627847 Backflow preventer valve Jan. 14, 2014
8579610 High compression downhole pump Nov. 12, 2013
8555915 Dual action low head isolation valve Oct. 15, 2013
8528592 Check valve construction Sep. 10, 2013
8453673 Valve cage for a pump Jun. 4, 2013
8403241 Filter case for shower having function of adjusting quantity of outflow of filling material Mar. 26, 2013
8381400 Method of manufacturing a check valve Feb. 26, 2013
8382454 Check valve, infusion device using the same, and method of manufacturing the same Feb. 26, 2013
8371330 Valve device Feb. 12, 2013
8312889 Combination flow control valve and reverse flow check valve Nov. 20, 2012
8291933 Spring-less check valve for a handpiece Oct. 23, 2012
8256444 Check ball valve assembly with check ball guide Sep. 4, 2012
8225811 Apparatus for the removal of moisture from a compressed air tank Jul. 24, 2012
8162462 Check valve unit for solid ink reservoir system Apr. 24, 2012
8146618 Ball non-return valve Apr. 3, 2012
8127789 Fluid retaining apparatus with ball valve Mar. 6, 2012
8082949 Non-return valve with a ball-shaped valve body Dec. 27, 2011
8061381 Sucker rod pump with improved ball and seat Nov. 22, 2011
7955059 Fluid control device for a high pressure analytical instrument Jun. 7, 2011
7955500 Oval seal cartridge with no dirty drip Jun. 7, 2011
7942160 Valves and pumps for microfluidic systems and method for making microfluidic systems May. 17, 2011
7878767 Cyclonic, debris removing valve and method Feb. 1, 2011
7789069 Check valve, and injector with hydraulic booster and check valve Sep. 7, 2010
7766034 Pressure control valve Aug. 3, 2010
7743786 Irrigation system and shut-off control device therefor Jun. 29, 2010
7610930 Discharge valve for downhole pumps Nov. 3, 2009
7503392 Deformable ball seat Mar. 17, 2009
7500968 Unidirectional urine collection reservoir Mar. 10, 2009
7350534 Hollow ball valve assembly Apr. 1, 2008
7290554 Embedded microfluidic check-valve Nov. 6, 2007
7290555 Embedded microfluidic check-valve Nov. 6, 2007
7264015 Non-return valve for a petrochemical reactor Sep. 4, 2007
7178554 Ultrasonically controlled valve Feb. 20, 2007
7171981 Flow control device and system Feb. 6, 2007
7140388 Dual ball valve air vent valve Nov. 28, 2006
7108281 Stored gas inflator with fill valve assembly Sep. 19, 2006
7093612 Self-sealing one-piece vacuum fitting for bagging of composite materials Aug. 22, 2006
7069997 Valve cage insert Jul. 4, 2006
7063516 One-way valve Jun. 20, 2006
7032608 Microfluidic check-valve embedded in LCP Apr. 25, 2006
7025087 Reciprocating piston pump adjustable inlet ball travel Apr. 11, 2006
6901949 One-directional microball valve for a microfluidic device Jun. 7, 2005
6899127 Non-vibrating ball check valve May. 31, 2005
6857442 Freeze protection device for wall hydrants/faucets Feb. 22, 2005
6817373 One-directional microball valve for a microfluidic device Nov. 16, 2004
6805160 Pump intake flow control Oct. 19, 2004
6802331 Particle-based check valve Oct. 12, 2004
6668862 Fluid bearing mechanism Dec. 30, 2003
6619316 Check valve having adjustable lift, packing assembly, and retrofit kit for same Sep. 16, 2003
6510869 Ball check valve Jan. 28, 2003

1 2 3 4










 
 
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