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. 23, 1990
Filed:
Oct. 18, 1989
Applicant:
Inventor:
Timothy M Logman, Monticello, IL (US);
Assignee:
Mueller Co., Decatur, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251267 ; 251264 ; 251273 ; 7442 / ;
Abstract
In a gate valve, the valve member is connected to an operating stem which extends upwardly through an opening in the housing for connection to a hand wheel rotatably carried by a yoke through which a portion of the stem extends; rotation of the hand wheel is transferred to linear motion of the valve stem through a split pair of threaded nut members the upper one of which is rotatably engaged with the hand wheel and the lower one of which is rotatably carried in a bore of the support yoke through which a threaded portion of the stem extends; the upper and lower nut members are intergaged to prevent relative rotation therebetween and are of identical configuration.