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. 01, 1980
Filed:
Sep. 08, 1978
James H Stubbings, Rockville, MD (US);
Potomac Applied Mechanics, Inc., Bethesda, MD (US);
Abstract
A yoke construction for a power shear and a ball-bearing assembly are provided that allow easier cutting of sheet metal with the shear. The yoke includes an arm having upper and lower surfaces, with a ball bearing mounted in the lower surface for universal rotation with respect to the arm, the ball bearing engaging the top of a work table to allow easier pivoting of the shear during cutting. Also, a plurality of ball bearings may be provided on the arm upper surface for engaging the work piece. The ball bearings are mounted by a rigid support member having a generally conical end portion with a generally pointed tip, the tip providing a bearing surface for the ball bearing and urging it against a lip formed in the surface from which the ball bearing extends. The ball bearing mounting assembly may be provided as an insert.