Fluid handling – Systems – Supply and exhaust
Patent
1976-11-22
1978-06-20
Schwadron, Martin P.
Fluid handling
Systems
Supply and exhaust
91170MP, 91413, 13762511, 137635, E21D 2326, F15B 1306, F16K 1118
Patent
active
040956164
ABSTRACT:
An hydraulic controller comprising: a casing; first and second inlets and a plurality of outlets associated with the casing; a flow-directing member rotatable in the casing; first and second passages extending through the flow-directing member, the flow-directing member being rotatable in the casing to each of a plurality of selected positions for directing liquid from the said inlets to selected ones of the outlets by way of said passages, each said first and second passage having an inlet end connected to a respective one of the first and second casing inlets, and having an outlet end connected to a selected one of the said several casing outlets according to the selected position of the said flow-directing member; first and second valves mounted in the flow-directing member and movable to open and close said first and second passages respectively; and locking means which operate in at least one of the said selected positions of the flow-directing member to prevent movement of the said first valve to a position for opening said first passage.
REFERENCES:
patent: 2499318 (1950-02-01), Jungerhans
patent: 2609207 (1952-09-01), Van Sickle
patent: 3986701 (1976-11-01), Hopkins
Chambers A. Michael
Hermann Hemscheidt Maschinenfabrik
Schwadron Martin P.
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