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:
Feb. 14, 1984
Filed:
Mar. 16, 1981
Applicant:
Inventor:
Eiichi Morisaki, Nagoya, JP;
Assignee:
Howa Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279 / ; 279110 ;
Abstract
A centrifugal force compensation device in a wedge-type balanced rotary chuck having jaws comprises, for each jaw, a balance weight and means for doubling the centrifugal force acting on the balance weight and applying the doubled force to the back face of that jaw near the outer periphery thereof thereby to press forward the jaw and impart thereto a moment urging it to rotate inward toward the chuck axis, whereby the so-called jaw flotation phenomenon is countered and prevented and, simultaneously, the reduction in chuck gripping force due to centrifugal force is compensated for.