Fluid handling – Self-proportioning or correlating systems – Plural sensors
Patent
1997-07-11
1998-11-03
Michalsky, Gerald A.
Fluid handling
Self-proportioning or correlating systems
Plural sensors
91459, 137 8703, 137456, 13762412, 13762565, F15B 13044, F15B 2000
Patent
active
058294708
ABSTRACT:
A valve assembly senses the cumulative volume of hydraulic fluid that has passed to an actuator and senses and subtracts from that cumulative volume the volume of return fluid that has passed from the actuator. When the difference between the volumes exceeds a preset value, the system shuts off the flow to the actuator to prevent further loss of fluid from a leak. The assembly may employ separate sensors in separate pressure and return lines or a common line with a common sensor which reverses signal polarity when flow reverses. Target flowmeters with signal adding and subtracting circuits may provide the differential volume information.
REFERENCES:
patent: 3029637 (1962-04-01), Fellows
patent: 3505513 (1970-04-01), Fowler et al.
patent: 3711689 (1973-01-01), Park
patent: 3723987 (1973-03-01), Barone et al.
patent: 3909596 (1975-09-01), Sullivan
patent: 4118780 (1978-10-01), Hirano
patent: 4205592 (1980-06-01), Haussler
patent: 4892114 (1990-01-01), Maroney et al.
patent: 4970941 (1990-11-01), Reinhardt
patent: 5287884 (1994-02-01), Cohen
patent: 5507466 (1996-04-01), Yowell et al.
PIC14000 Mixed Signal Controller, Microchip Technology Inc., 2 pages (1996).
Mark V Target Strain Gage Target Flowmeter, Hersey Measurement Co., M711 (1988) 16 pages.
Blum Alvin S.
Kaylor Stephen
Samuelson Duane
Yowell Gordon
Blum Alvin S.
Michalsky Gerald A.
Predator Systems Incorporated
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