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:
May. 12, 1987

Filed:

Jan. 29, 1986
Applicant:
Inventors:

Hiroshi Kaneda, Saitama, JP;

Masahito Mitsumori, Tokyo, JP;

Kenji Hamabe, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ; B22D / ;
U.S. Cl.
CPC ...
418137 ; 418151 ; 164 98 ; 164108 ; 164111 ;
Abstract

A vane air pump has a vane holder which includes a main body. A vane extends outward from one side of the main body and a balance weight extends outward from the other side of the main body in a direction opposite to the vane. The balance weight is cast integrally with the main body. The method discloses integrally forming a balance weight with the main body of the vane holder.


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