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:
May. 05, 1981
Filed:
Aug. 08, 1979
Applicant:
Inventors:
Harold V Hamilton, Bedford, MA (US);
Harold A Melendy, Northridge, CA (US);
Assignee:
Barry Wright Corporation, Watertown, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
269 27 ; 92 33 ;
Abstract
A hydraulic clamp comprising an assembly of concentrically-arranged parts wherein axial movement of a first part effects rotation of a second part and axial movement of a third part effects a corresponding axial movement of the second part and wherein the first part controls supply of pressure fluid to the third part so that rotation is first imparted to the second part and thereafter axial movement is imparted thereto and wherein a clamp arm is fixed to said second part.