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. 13, 1998
Filed:
Jan. 24, 1997
Roger L Craft, Emporia, KS (US);
Vektek, Inc., Emporia, KS (US);
Abstract
A hydraulically-operated swing clamp (10) for holding and clamping a workpiece (14) to a fixture (12) is disclosed. The swing clamp (10) includes an improved cam assembly (24) that swings its clamping head (22) away from the workpiece (14) when the piston (22) of the clamp (10) is shifted to its extended, unclamped position. The cam assembly (24) includes at least one cam track or groove (38,40,42) and a corresponding cam follower ball (44) received within the groove (38,40,42). The cam track (38,40,42) includes a central arcuate region (48) and a pair of substantially planar side faces (50,52) extending tangentially from the central arcuate region (48). The central arcuate region (48) has a radius of curvature substantially equal to the radius of curvature of the cam follower ball (44). The planar side faces (50,52) extend tangentially away from the central arcuate region (48) and the cam follower ball (44).