Pumps – Motor driven – Electric or magnetic motor
Patent
1992-11-19
1994-02-22
Bertsch, Richard A.
Pumps
Motor driven
Electric or magnetic motor
41742311, 41742312, 41742314, F04B 1700
Patent
active
052882152
ABSTRACT:
A new integral motor/pump design utilizing a combination centrifugal enclosed impeller, shaft and feeder conduit. Whereby the impeller drive shaft serves a dual purpose of providing applied power from the hollow motor driveshaft directly to the impeller blade or blades and also is a fluid entrance conduit for the impeller media feed. The present invention hollow motor drive shaft, hollow impeller shaft and enclosed impeller also incorporates optional changeable impeller leading edge blades. These blades help facilitate the most efficient flow of various fluids and pumped media. The present invention utilizes simplicity of design whereby inspection and service accessibility is optimized. Design configuration renders radial thrust bearing curves more applicable to a broad range of applications and extended motor/pump service life.
REFERENCES:
patent: 1687658 (1928-10-01), Conant
patent: 1714484 (1929-05-01), Johnson
patent: 2139379 (1938-12-01), Myers
patent: 3134333 (1964-05-01), Nielsen
patent: 3667870 (1972-06-01), Yoshida et al.
patent: 4569638 (1986-02-01), Harker et al.
patent: 4773822 (1988-09-01), Jensen et al.
patent: 4773823 (1988-09-01), Pease
patent: 4959183 (1990-09-01), Jameson
Chancellor Dennis H.
Chancellor Temple M.
Vogel Jacquetta
Bertsch Richard A.
McAndrews, Jr. Roland G.
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