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:
Jul. 17, 1984
Filed:
Dec. 11, 1981
Kenneth R Williams, Huntington Beach, CA (US);
Aerojet-General Corporation, La Jolla, CA (US);
Abstract
A lever operator for use primarily with valves of the plug type in which a tapered plug is raised to unseat associated slips and then rotated to a valve open position during opening of the valve and is rotated to a valve close position and lowered to seat the associated slips for closing the valve. The lever operator comprises an elongated lever arm having an eccentric cam at one end thereof connected to the trunnion of the valve to which the invention is assembled and also comprises a unique dual slot gate mechanism which houses the lever arm and restricts the motion of the arm to the requisite vertical and rotational movement which must be carried out in the appropriate sequence to properly operate the tapered plug mechanism of the valve.