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Class Information
Number: 137/829
Name: Fluid handling > Flow affected by fluid contact, energy field or coanda effect (e.g., pure fluid device or system) > Means to regulate or vary operation of device > By movable element
Description: Device wherein said means is a member that can move relative to the passages provided for flow of fluid.










Sub-classes under this class:

Class Number Class Name Patents
137/831 Electrically-actuated element (e.g., electro-mechanical transducer) 72
137/832 Means (e.g., valve) in control input 30
137/830 Operating at timed intervals (e.g., to produce pulses) 10


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8678035 Selectively variable flow restrictor for use in a subterranean well Mar. 25, 2014
8656958 Microfabricated elastomeric valve and pump systems Feb. 25, 2014
8646482 Microfluidic pump and valve structures and fabrication methods Feb. 11, 2014
8636033 Microfluidic device initialization method, microfluidic device initialization apparatus and microfluidic device package Jan. 28, 2014
8590573 Microfabricated fluidic circuit elements and applications Nov. 26, 2013
8551599 Reconfigurable microactuator and method of configuring same Oct. 8, 2013
8550119 Microfabricated elastomeric valve and pump systems Oct. 8, 2013
8499794 Liquid channel device and production method therefor Aug. 6, 2013
8459202 Substrate processing apparatus Jun. 11, 2013
8424560 Multi-valve microfluidic devices and methods Apr. 23, 2013
8398938 Microfluidic thermal bend actuated pressure pulse valve Mar. 19, 2013
8323573 Microfluidic cartridge with solution reservoir-pump chamber Dec. 4, 2012
8235073 Microfluidic valve unit for controlling flow of fluid and method of fabricating the same Aug. 7, 2012
8220493 Passive components for micro-fluidic flow profile shaping and related method thereof Jul. 17, 2012
8210209 Microfluidic system including a bubble valve for regulating fluid flow through a microchannel Jul. 3, 2012
8187541 Apparatus for detecting target molecules and related methods May. 29, 2012
8156962 Microvalve device Apr. 17, 2012
8104514 Microfabricated fluidic circuit elements and applications Jan. 31, 2012
8096784 Bi-directional continuous peristaltic micro-pump Jan. 17, 2012
8080220 Thermal bend actuated microfluidic peristaltic pump Dec. 20, 2011
8075855 MEMS integrated circuit comprising peristaltic microfluidic pump Dec. 13, 2011
7992587 Microfluidic autoregulator devices and arrays for operation with newtonian fluids Aug. 9, 2011
7832429 Microfluidic pump and valve structures and fabrication methods Nov. 16, 2010
7790109 Micro-fluid reaction vessel, method for manufacturing the same, and micro-fluid reaction method using the vessel Sep. 7, 2010
7000639 Air-distribution device based on the Coanda effect with means for imparting a circulatory motion on the flow of air not properly oriented Feb. 21, 2006
7000640 Air-distribution device based on the coanda effect Feb. 21, 2006
6941967 Air-distribution system Sep. 13, 2005
6901949 One-directional microball valve for a microfluidic device Jun. 7, 2005
6817373 One-directional microball valve for a microfluidic device Nov. 16, 2004
6792976 Fluid distribution device having improved deviating means Sep. 21, 2004
6192911 Venturi injector with self-adjusting port Feb. 27, 2001
5785815 Process for damping pressure pulsations and apparatus for performing the process Jul. 28, 1998
5316032 Method and apparatus for laminar flow control May. 31, 1994
5241991 Electro-rheological control valve Sep. 7, 1993
5074629 Integrated variable focal length lens and its applications Dec. 24, 1991
4733695 Fluidic set-point pressure sensor Mar. 29, 1988
4718870 Marine propulsion system Jan. 12, 1988
4534383 Fluidic set point pressure sensor Aug. 13, 1985
4467984 Angular rate sensing apparatus and methods Aug. 28, 1984
4441525 Fluidic stabilization control Apr. 10, 1984
4434813 Laminar proportional amplifier and laminar jet angular rate sensor with rotating splitter for null adjustment Mar. 6, 1984
4434812 Fluidic gain changer Mar. 6, 1984
4392621 Directional control of engine exhaust thrust vector in a STOL-type aircraft Jul. 12, 1983
4388950 Fluid flow control element having movable valve and method Jun. 21, 1983
4326559 Fluidic force transducer Apr. 27, 1982
4326452 Fluid diverting assembly Apr. 27, 1982
4278110 Demand responsive flow controller Jul. 14, 1981
4267856 Fluid oscillator May. 19, 1981
4256015 Fluidic stabilization control Mar. 17, 1981
4241760 Fluidic valve Dec. 30, 1980

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