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Class Information
Number: 137/820
Name: Fluid handling > Flow affected by fluid contact, energy field or coanda effect (e.g., pure fluid device or system) > System comprising plural fluidic devices or stages > Plural power inputs (e.g., parallel inputs) > To cascaded plural devices > With feedback passage(s) between devices of cascade
Description: System further provided with a connection from a power output passage of said second (i.e., downstream) device to a control input passage of said first device, whereby at least a portion of the power output fluid of the second device will affect the control input of the first device.

Patents under this class:

Patent Number Title Of Patent Date Issued
8418725 Fluidic oscillators for use with a subterranean well Apr. 16, 2013
6053207 Valve cover and its related system Apr. 25, 2000
5861685 Pump and master valve circuit isolator apparatus Jan. 19, 1999
4955547 Fluidic oscillating nozzle Sep. 11, 1990
4905909 Fluidic oscillating nozzle Mar. 6, 1990
4874016 Method for improving signal-to-noise ratios in fluidic circuits and apparatus adapted for use therewith Oct. 17, 1989
4852613 Fluidic pump control systems Aug. 1, 1989
4833880 Fluidic set point amplifier apparatus and method, and uses thereof May. 30, 1989
4644781 Fluid property measuring device Feb. 24, 1987
4276895 Apparatus and method for temperature compensation of fluidic circuits Jul. 7, 1981
4265162 Servovalve having fluidic actuator May. 5, 1981
4265116 Fluidic temperature sensor May. 5, 1981
4260106 Fluidic oscillator with resonant inertance and dynamic compliance circuit Apr. 7, 1981

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