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:
Apr. 28, 1987
Filed:
Apr. 29, 1985
Applicant:
Inventor:
Mizoguchi, Haruki, Ikoma, JP;
Assignee:
Mizoguchi Iron Works & Co., Ltd., Nara, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279 / ; 279 / ; 279103 ;
Abstract
An improved needle-roller type chuck having a cylindrical portion extending forwardly from a chuck main body which is constituted by an inner cylinder integrally formed with a chuck main body and an outer cylinder fixed as one unit, onto the outer peripheral surface of the inner cylinder, a plurality of groove portions formed on the outer peripheral surface of the inner cylinder except for its forward end portion, in positions corresponding to the portions for attaching the needle rollers.