Reciprocating pump

Details Reciprocating pump Reciprocating pump

1997-10-16

1999-11-09

Ryznic, John E.

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

92 86, F04B 1922

Patent

active

059792965

ABSTRACT:
A communication path (32) for communicating a hermetically closed space (S) with an inlet port (20) is formed within a casing (1). An oil reservoir (30) having an inside capacity much greater than an inside capacity of the communication path (32) is formed in an intermediate part of the communication path (32).

REFERENCES:
patent: 1787700 (1931-01-01), Persons
patent: 2457339 (1948-12-01), Bertea
patent: 3744377 (1973-07-01), Lauck
patent: 3868890 (1975-03-01), Roberts et al.
patent: 3973473 (1976-08-01), Bate
patent: 4597322 (1986-07-01), Garnjost et al.
patent: 4858439 (1989-08-01), Sawada et al.
patent: 5415531 (1995-05-01), Cavanaugh
patent: 5655778 (1997-08-01), Cavanaugh
patent: 5782161 (1998-07-01), Okubo et al.

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