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:
Nov. 11, 1986
Filed:
Sep. 06, 1985
Mathew A Slaats, Jasper, IN (US);
Patrick E Strange, Jasper, IN (US);
Kimball International, Inc., Jasper, IN (US);
Abstract
A control mechanism for a hydraulic lifting assembly for supporting articles of furniture. The hydraulic lifting assembly includes a base, a support column secured to the base, a variable volume chamber, a fixed volume chamber and a control valve mechanism. The fixed and variable volume chambers are interconnected by a flexible conduit. The control valve mechanism includes a cam secured to a rotatable rod which is positioned so that, by rotating the rod, the cam will selectively pinch off the flexible conduit and prevent fluid flow therethrough. A spring is provided for normally urging the cam against the flexible conduit to pinch off the conduit. The control may be located in any convenient location due the flexibility of the conduit.