Fluid handling – Self-proportioning or correlating systems – Supply and exhaust type
Patent
1976-08-24
1977-11-08
Cline, William R.
Fluid handling
Self-proportioning or correlating systems
Supply and exhaust type
G05D 700
Patent
active
040570746
ABSTRACT:
This invention is a reversing valve having an inlet, an outlet, and an inlet-outlet port. The valve is designed to respond to the introduction of relatively high-pressure fluid at its inlet or, alternatively, of lower-pressure fluid at its inlet-outlet port. The valve includes an axially slidable assembly which is spring-biased to a position where it isolates the inlet and connects the inlet-outlet port to the outlet. The admission of high-pressure fluid to the inlet displaces the slidable assembly to a position where the outlet is isolated and the inlet is connected to the inlet-outlet port. The valve is designed to minimize pressure drops and leakage. It is of a reliable and comparatively simple design.
REFERENCES:
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patent: 2538806 (1951-01-01), St. Clair
patent: 2892468 (1959-06-01), Beuchle
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patent: 3519011 (1970-07-01), Pennanen
patent: 3608859 (1971-09-01), Hetzer
patent: 3653722 (1972-04-01), Klimek
patent: 3769997 (1973-11-01), Hardwick et al.
patent: 3799185 (1974-03-01), Milnes et al.
patent: 3834837 (1974-09-01), Nickell
patent: 3845932 (1974-11-01), Fontaine
Carlson Dean E.
Cline William R.
Hamel Stephen D.
Lewis Fred O.
Spiegel H. Jay
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