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:
Jul. 13, 1999

Filed:

Jul. 28, 1997
Applicant:
Inventors:

Kozo Matake, Kawasaki, JP;

Akira Suzuki, Tokyo, JP;

Assignees:

Ebara Corporation, Tokyo, JP;

Ebara Densan Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ;
U.S. Cl.
CPC ...
310 89 ; 310 87 ; 310 88 ; 310 71 ;
Abstract

A light weight and compact canned motor having a high cooling efficiency while maintaining its mechanical properties has been developed. The canned motor has a connection end connected to a driven equipment and a free end and comprises a rotor shaft protruding from the connection end; a cylindrical thin-walled can member defining a rotor chamber for housing the rotor shaft and a rotor; a cylindrical thin-walled frame body defining a stator chamber outside of the can member for housing a stator; a connection end plate for covering a connection end opening of the stator chamber; and a free end plate for covering a free end opening of the stator chamber.


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