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:
Oct. 20, 1987
Filed:
Aug. 26, 1986
Applicant:
Inventor:
Garfield R Lunn, Amherstburg, CA;
Assignee:
Lamb Technicon Corp., Warren, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
269226 ; 269238 ;
Abstract
A workpiece clamping device with a movable clamp member actuated by a jack screw driven by a reversible electric motor through a worm meshing with a gear connected to the jack screw. To yieldably bias the clamp member into engagement with the workpiece, a spring is compressed by axial movement of the worm caused by rotating it after the clamp member is forced into engagement with the workpiece by the jack screw.