The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 06, 1998

Filed:

Dec. 05, 1995
Applicant:
Inventors:

Makoto Kobayashi, Kanagawa-ken, JP;

Masakazu Yamamoto, Kanagawa-ken, JP;

Yoshio Miyake, Kanagawa-ken, JP;

Koji Isemoto, Kanagawa-ken, JP;

Keita Uwai, Kanagawa-ken, JP;

Yoshiaki Miyazaki, Kanagawa-ken, JP;

Assignee:

Ebara Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4151821 ; 415 98 ; 415102 ;
Abstract

A full circumferential flow double suction pump has a pair of pump assemblies mounted on respective opposite ends of the rotor shaft of the motor mounted within an outer frame casing. The motor is positioned within an outer cylinder such that an annular space is defined between the outer frame casing and the outer cylinder. A discharge port connects with the annular space. A pair of cylindrical cup-shaped pump casings are connected to respective opposite ends of the outer cylinder for housing the pump assemblies. A header pipe connects the suction nozzles of the cylindrical cup-shaped pump casings to each other and has a suction port defined therein for introducing a fluid therethrough and through the suction nozzles into the pump assemblies.


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