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:
Aug. 02, 1983
Filed:
Jun. 25, 1981
James C Solie, Owatonna, MN (US);
Larry D Allard, Owatonna, MN (US);
Owatonna Tool Company, Owatonna, MN (US);
Abstract
An adjustable work support for relatively light loading having an extendable plunger locked in position by a fluid-operated piston which acts on a disc positioned between the rod of the piston and the plunger and which is urged to a position to take up clearance to avoid shift of the disc and resulting inadvertent retraction movement of the plunger. A sealed cavity with a flexible bladder communicates with a piston chamber housing the piston and a closed end of the bore mounting the plunger whereby flow of fluid to the sealed cavity avoids any ram effect on the plunger when the piston is operated to lock the plunger in position.