Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1979-07-09
1981-01-13
Cline, William R.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
1376253, 13762538, 417299, G05D 1103
Patent
active
042443881
ABSTRACT:
A combination by-pass and check valve for use in a fluid flow system comprising a valve body having an inlet and outlet and a passage therethrough. A seat disposed in the valve body between the inlet and outlet for location of a check disc thereon, the disc and seat cooperating to prevent fluid flow from the outlet to the inlet. A sleeve having one or more orifices therein extends from the check disc and substantially surrounds a portion of a perforate tubular by-pass located intermediate the seating surface and the inlet. The orifices in the sleeve and the perforations in the by-pass are in at least partial alignment and communication when the disc is on the seat, permitting fluid flow through the by-pass. When fluid flow from the inlet to the outlet has raised the disc a substantial distance off the seat, the orifices in the sleeve are non-aligned with the perforations on the by-pass, preventing fluid flow through the by-pass.
REFERENCES:
patent: 878183 (1908-02-01), Brauner
patent: 1421309 (1922-06-01), Redfield
patent: 2397664 (1946-04-01), Hillier
patent: 2642254 (1953-06-01), Armstrong
patent: 3117590 (1964-01-01), Nelson et al.
patent: 3318321 (1967-05-01), Odendahl
patent: 3358705 (1967-12-01), Krechel
patent: 3871397 (1975-03-01), Larsen
patent: 4041982 (1977-08-01), Lindner
Cline William R.
Crane & Co.
Spiegel H. Jay
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