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:
Apr. 26, 1988
Filed:
Jun. 08, 1984
Paul H Sloan, Jr, Granger, IN (US);
Danny F Quick, Blytheville, AR (US);
James M Brown, Osceola, AR (US);
Van W O'Keefe, Blytheville, AR (US);
Nibco, Inc., Elkhart, IN (US);
Abstract
The invention provides a means whereby a body such as that of a butterfly valve can be prepared with minimal machining. The manufacture of a butterfly valve is described in which the stem openings for the valve are left in their as-cast condition, the stem bushings inserted, aligned with a stem replica and then permanently locked in aligned position by filling the voids between the bushings and the walls of their openings with the same elastomeric compound from which the valve seat is molded. The compound, after curing or setting, being of such thin wall section that for all practical purposes it is a rigid material.