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Class Information
Number: 137/115.11
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Bypass or relief controlled by main line fluid condition > Flow rate responsive > Venturi
Description: Subject matter wherein the sensor includes a device which is a part of the main flow passage having a cross section of the part gradually constricted to a throat between two ends of the part and gradually expanded from the throat to the cross section of the passage.

Patents under this class:

Patent Number Title Of Patent Date Issued
6857444 Flow-actuated trapped-pressure unloader valve Feb. 22, 2005
5819778 Flow control device of power steering system Oct. 13, 1998
5819777 Flow control device Oct. 13, 1998
5775361 Method and apparatus for enhancing stability in hydraulic flow control Jul. 7, 1998
5718255 Flow-responsive diverting valve Feb. 17, 1998
5694966 Flow responsive pressure regulating unloader Dec. 9, 1997
4300587 Relief valve Nov. 17, 1981
4251193 Flow control valve Feb. 17, 1981
3957075 Flow-sensitive pressure limiting valve for hydraulic equipment May. 18, 1976
3946562 Hydraulic system cavitation suppressor Mar. 30, 1976

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