Pumps – Expansible chamber type – Including valve assembly – disassembly – or inspection...
Patent
1975-07-07
1977-02-15
Freeh, William L.
Pumps
Expansible chamber type
Including valve assembly, disassembly, or inspection...
417435, F04B 2102, F04B 3900
Patent
active
040080129
ABSTRACT:
A double-acting pump for food products. The pump has a metering cylinder closed by end caps defining respective pairs of inlet and outlet parts. Valve housings contain identical valves and are connected to respective manifolds. The components are maintained in sealing relationship by urging the end caps together. A locking collar and drain plate enables pump to be bodily rotated through 180.degree. without releasing clamping force, for self draining and cleansing-in-place. Pump can be dismantled without tools.
REFERENCES:
patent: 554798 (1896-02-01), Rowland
patent: 1449590 (1923-03-01), Dent
patent: 2146709 (1939-02-01), Bird et al.
patent: 2217287 (1940-10-01), McNew
patent: 2733664 (1956-02-01), Saalfrank
patent: 3142257 (1964-07-01), Schudt
patent: 3849033 (1974-11-01), Schau
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