Fluid handling – Systems – Supply and exhaust
Patent
1982-11-22
1984-08-21
Cohan, Alan
Fluid handling
Systems
Supply and exhaust
13762411, 137871, 74567, F16K 1114, F16K 31524
Patent
active
044664567
ABSTRACT:
A housing (28) has parallel passageways (30). Each passageway (30) has an inlet port (34) and an outlet port (32). A valve stem (26) with a head (36) reciprocates in each passageway (30) to control the outlet port (32). A flat plate (22) rotates perpendicularly to the stems (26) and has flat surface portions (48) and cavities (46). The positioning of portions (48) and cavities (46) is programmed to bring one of them into alignment with each stem (26) when plate (22) is in any one of a number of predetermined positions. When a portion (48) is moved into alignment, it bears against the head (36) and moves the stem (26) inwardly against a spring (38) into a second position. When a cavity (46) is moved into alignment, the stem (26) is urged into its first position by spring (38) and its head (36) extends into the cavity ( 46). Each stem (26) carries an O-ring seal (40) which is on one side of outlet port (32) when stem (26) is in its first position and on the other side of port (32) when stem (26) is in its second position. Ports (34, 32) communicate with each other when stem (26) is in its first position. Seal (38) blocks this communication when stem (26) is in its second position. Preferably, a manifold (64) communicates with each inlet port (34).
REFERENCES:
patent: 491272 (1893-02-01), Schier
patent: 831049 (1906-09-01), Fitzgibbon et al.
patent: 1822117 (1931-09-01), Travis
patent: 2129100 (1938-09-01), Pickup
patent: 2275963 (1942-03-01), Herman et al.
patent: 2335525 (1943-11-01), Matter
patent: 2580553 (1952-01-01), King
patent: 3338550 (1967-08-01), Coulter
Barnard Delbert J.
Cohan Alan
Pauly Joan H.
Red Dot Corporation
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