Pump having first and second outer casing members

Details Pump having first and second outer casing members Pump having first and second outer casing members

1996-02-08

1999-03-30

Freay, Charles G.

Pumps

Successive stages

417350, 417365, 4174233, 4174235, 41742314, F04B 3504, F04B 1700

Patent

active

058880534

ABSTRACT:
A pump having an improved fluid passage has an inner casing which houses at least one impeller and an outer casing which houses the inner casing. The pump also has a communicating pipe disposed outside of the outer casing for guiding a main flow of a fluid being handled from a space defined in the outer casing into another space defined in the outer casing.

REFERENCES:
patent: 1071042 (1913-08-01), Fuller
patent: 1823455 (1931-09-01), Kirgan
patent: 2814254 (1957-11-01), Litzenberg
patent: 3975117 (1976-08-01), Carter
patent: 4105372 (1978-08-01), Mishina et al.
patent: 5040949 (1991-08-01), Crinquette et al.
patent: 5385444 (1995-01-01), Kobayashi et al.
patent: 5388971 (1995-02-01), Kobayashi et al.
patent: 5401146 (1995-03-01), Moriya et al.
patent: 5478215 (1995-12-01), Kobayashi et al.
patent: 5494403 (1996-02-01), Kobayashi et al.
patent: 5494418 (1996-02-01), Moriya et al.
patent: 5616013 (1997-04-01), Kobayashi et al.
JP-A-59 162388, Sep. 13, 1984.

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