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:
Sep. 12, 1995
Filed:
Jan. 27, 1993
Applicant:
Inventors:
Teruo Maruyama, Hirakata, JP;
Akira Takara, Higashiosaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C / ; F04B / ;
U.S. Cl.
CPC ...
417205 ; 4174234 ; 418-2 ; 4182011 ;
Abstract
A fluid rotating apparatus includes a plurality of rotors accommodated in a housing, at least one of the rotors having its outer diameter different from that of the other of the rotors. Bearings are provided for supporting rotary shafts of the plurality of rotors. A fluid suction port and a fluid discharge port are formed in the housing. A motor is provides for rotating at least one of the plurality of rotors, and a control system for synchronously controlling the plurality of rotors in a contactless manner is provided for each rotary shaft of the plurality of rotors.