Pumps – Motor driven – Pump within rotary working member
Patent
1995-02-03
1998-02-03
Freay, Charles G.
Pumps
Motor driven
Pump within rotary working member
417357, 417366, 4174235, 4174238, 440 30, F04B 3504
Patent
active
057137277
ABSTRACT:
An in-line, multi-stage pump powered by integral canned electric motors. At least two pump units are connected in series in a pipeline. Each of said pump units includes a hollow housing having a hermetically sealed stator mounted therein. The stator is electrically connected to a source of electrical energy. An impeller assembly that includes a tubular suction shroud and impeller is rotatably mounted inside the housing. The impeller assembly includes a hermetically sealed rotor which is mounted around the suction shroud and positioned inside the stator in operative association therewith. Energizing the stator rotates the rotor, which in turn rotates the impeller to pump fluid from the intake end of the housing to the outlet end of the housing. The subsequent pump units add pressure and/or maintains the pressure of the pumped fluid.
REFERENCES:
patent: 1071042 (1913-08-01), Fuller
patent: 2537310 (1951-01-01), Lapp
patent: 2839005 (1958-06-01), Means
patent: 3276382 (1966-10-01), Richter
patent: 3723028 (1973-03-01), Bottoms et al.
patent: 4050849 (1977-09-01), Sheets
patent: 4190395 (1980-02-01), Ball
patent: 4341173 (1982-07-01), Hagelberg et al.
patent: 4474561 (1984-10-01), Haglund
patent: 4541782 (1985-09-01), Mohn
patent: 4643685 (1987-02-01), Nishida
patent: 4678400 (1987-07-01), Kuboyama
patent: 4718870 (1988-01-01), Watts
patent: 4917637 (1990-04-01), Soga et al.
patent: 5101128 (1992-03-01), Veronesi et al.
patent: 5165864 (1992-11-01), Burger et al.
patent: 5209650 (1993-05-01), Lemieux
patent: 5490768 (1996-02-01), Veronesi et al.
patent: 5494413 (1996-02-01), Campen et al.
Morris Allen L.
Veronesi Luciano
Freay Charles G.
Westinghouse Electric Corporation
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