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. 09, 1982
Filed:
May. 07, 1979
Applicant:
Inventor:
Samuel H Pruden, East Hartford, CT (US);
Assignee:
Cushman Industries, Incorporated, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ;
U.S. Cl.
CPC ...
279 / ; 60565 ; 279-4 ;
Abstract
Chuck installation with a cylinder and piston for fluid operation of the chuck jaws, providing a plunger projecting into the cylinder and movable in opposite directions for decreasing and increasing the volume of the cylinder and thereby increasing and decreasing the pressure of the operating fluid therein, and operating means, including weights, turning with the chuck and responsive to centrifugal force of these weights to force the plunger deeper into the cylinder for increasing the pressure of the operating fluid therein and thereby counteract operational centrifugal force of the jaws in operation of the chuck.