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Class Information
Number: 137/804
Name: Fluid handling > Flow affected by fluid contact, energy field or coanda effect (e.g., pure fluid device or system) > Responsive to condition external of system
Description: Device or system which senses or detects or which is provided with additional means to sense or detect, a characteristic or state of the environment outside of said device or system, and which generates a signal or impulse as a result of such sensing or detecting.










Sub-classes under this class:

Class Number Class Name Patents
137/805 And causing change or correction of sensed condition 31


Patents under this class:

Patent Number Title Of Patent Date Issued
8657017 Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system Feb. 25, 2014
8571436 Gas transfer unit Oct. 29, 2013
8479831 Flow path control based on fluid characteristics to thereby variably resist flow in a subterranean well Jul. 9, 2013
8235128 Flow path control based on fluid characteristics to thereby variably resist flow in a subterranean well Aug. 7, 2012
6924733 Hose separation transmitter system and methods Aug. 2, 2005
6669831 Microfluidic devices and methods to regulate hydrodynamic and electrical resistance utilizing bulk viscosity enhancers Dec. 30, 2003
6424923 Method for computing three dimensional unsteady flows by solution of the vorticity equation on a Lagrangian mesh Jul. 23, 2002
5927335 Spherical chamber fluidic ball diverter valve Jul. 27, 1999
4945764 Constant gain laminar jet angular rate sensing device Aug. 7, 1990
4856338 Technique for null balancing fluidic circuits Aug. 15, 1989
4846233 System for selectively emptying or filling a tank Jul. 11, 1989
4823593 Flueric partial pressure sensors Apr. 25, 1989
4775016 Downhole pressure fluctuating feedback system Oct. 4, 1988
4630689 Downhole pressure fluctuating tool Dec. 23, 1986
4550614 Oscillatory flowmeter Nov. 5, 1985
4523611 Fluidic absolute-to-differential pressure converter Jun. 18, 1985
4501293 Gas flow responsive signal output means Feb. 26, 1985
4484601 Liquid level control device Nov. 27, 1984
4460018 Ultralow pressure relief valve Jul. 17, 1984
4445377 Pressure-to-electric output system for an angular rate sensor or the like May. 1, 1984
4407153 Flueric partial pressure sensors Oct. 4, 1983
4326559 Fluidic force transducer Apr. 27, 1982
4289126 Pressure regulator for breathing apparatus Sep. 15, 1981
4277971 Fluidic oil viscometer Jul. 14, 1981
4265116 Fluidic temperature sensor May. 5, 1981
4258754 Method and apparatus for fluid sound amplification and detection of low frequency signals Mar. 31, 1981
4170894 Means, employing a fluidic oscillator, for determining the density of gas Oct. 16, 1979
4046008 Fluidic temperature sensor Sep. 6, 1977
4007625 Fluidic oscillator assembly Feb. 15, 1977
4003242 Device for determining the mixing ratio of binary gases Jan. 18, 1977
3998574 Processed-paced, fluidic control system for molding machines Dec. 21, 1976
3986526 Hybrid fluidic and fluid servo controller Oct. 19, 1976
3971257 Laminar jet linear accelerometer Jul. 27, 1976
3942556 Fluidic sensor Mar. 9, 1976











 
 
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