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.
Patent No.:
Date of Patent:
Mar. 04, 2003
Filed:
Apr. 26, 2000
Applicant:
Inventors:
Noboru Iida, Shiga, JP;
Kiyoshi Sawai, Shiga, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/703 ;
U.S. Cl.
CPC ...
F04B 1/703 ;
Abstract
A hermetic type compressor comprises a hermetic container in which a compressor mechanism and a motor are provided, and a rotor of the motor is comprised of laminated iron plates in which permanent magnets are embedded, and a main shaft of the compressor mechanism is inserted into the rotor over its entire length. With this structure, even if a centrifugal force is applied to a balance weight at the high speed operation, laminated iron plates of a rotor are not displaced in the radial direction, and an excellent driving state can be kept.