Flow control valve

Details Flow control valve Flow control valve

2006-03-07

2006-03-07

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

C123S506000, C123S511000, C137S118060, C137S493700, C137S513500, C137S565130, C137S565220

Reexamination Certificate

active

07007708

ABSTRACT:
A valve mechanism to control fluid flow between a fluid pumping device and a system that includes an inlet from the fluid pumping device, a first valve, a second valve, a first outlet fluidly connected to the system, and a second outlet. The first valve prevents backflow of fluid when the fluid pumping device discontinues pumping fluid to the system. The second valve checks fluid flow through the valve to the first outlet when fluid pressure at the inlet is less than a first predetermined pressure. The second valve permits fluid flow from the pump through the valve to the system only when fluid pressure at the inlet is greater than the first predetermined pressure. The second valve prevents fluid pressure in the system from substantially exceeding a second predetermined pressure when the pumping device is not pumping fluid to the system.

REFERENCES:
patent: 3580275 (1971-05-01), Hanson et al.
patent: 3589517 (1971-06-01), Palmi
patent: 3626977 (1971-12-01), Riley et al.
patent: 3705600 (1972-12-01), Heggen
patent: 3721264 (1973-03-01), Coughlin
patent: 3747626 (1973-07-01), Valentino
patent: 3913601 (1975-10-01), Hanson
patent: 3976096 (1976-08-01), Kass
patent: 4135541 (1979-01-01), Lorimor
patent: 4176688 (1979-12-01), Schwerin
patent: 4204560 (1980-05-01), Eriksen
patent: 4316504 (1982-02-01), Baker et al.
patent: 4341239 (1982-07-01), Atkinson
patent: 4457333 (1984-07-01), Sharp
patent: 4539959 (1985-09-01), Williams
patent: 4648369 (1987-03-01), Wannenwetsch
patent: 4773444 (1988-09-01), Bleth et al.
patent: 4778595 (1988-10-01), Sable et al.
patent: 4917795 (1990-04-01), Sable et al.
patent: 4948092 (1990-08-01), Kasper et al.
patent: 5086613 (1992-02-01), Fox et al.
patent: 5143115 (1992-09-01), Geyler, Jr.
patent: 5289810 (1994-03-01), Bauer et al.
patent: 5477829 (1995-12-01), Hassinger et al.
patent: 5577970 (1996-11-01), Smith et al.
patent: 5700213 (1997-12-01), Simpson et al.
patent: 5707309 (1998-01-01), Simpson
patent: 5797374 (1998-08-01), Minagawa et al.
patent: 5931132 (1999-08-01), Freeland
patent: 6068022 (2000-05-01), Schultz et al.
patent: 6131606 (2000-10-01), O'Neill
patent: 6136183 (2000-10-01), Suzuki et al.
patent: 6283885 (2001-09-01), Irwin
patent: 6322468 (2001-11-01), Wing et al.
patent: 6352067 (2002-03-01), Genslak
patent: 6581639 (2003-06-01), Fiala et al.
patent: 2001/0006917 (2001-07-01), Hashimoto
patent: 2001/0032675 (2001-10-01), Russell
patent: 2003/0056832 (2003-03-01), Seitz

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