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:
Jun. 26, 2001
Filed:
Feb. 02, 1999
Larry R. Cook, Woodinville, WA (US);
Robert A. Starr, Auburn, WA (US);
Robert B. Erley, Kirkland, WA (US);
Jeffrey A. Sterk, Snoqualmie, WA (US);
CNA Manufacturing Systems, Inc., Woodinville, WA (US);
Abstract
A clamp for clamping extendible supports in flexible tooling system includes three overlapping tapered collets surrounding the extendible support, with a set of ball bearings positioned between each of the collets. The middle collet is tapered in a direction opposite to that of the inner and outer collets, so that when the middle collet is pressed by springs into a gap between the inner and outer collet, the inner collet is forced against the extendible support, thereby clamping it. The ball bearings and the three collet assembly prevent the clamp from binding with thermal expansion so that the clamp releases when the force pressing the middle collet into the space between the inner and outer collet is removed. The springs maintain a sustained clamping force so the clamp does not release upon thermal expansion of it components.