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:
Feb. 29, 2000
Filed:
Apr. 17, 1995
Applicant:
Inventors:
Robert Joseph Brown, Cookeville, TN (US);
William John Mabery, Gainesboro, TN (US);
Harold Taylor Gentry, Cookevile, TN (US);
Gerald Patrick McDermott, Cookevile, TN (US);
Assignee:
Flowserve Corporation, Irving, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251305 ;
Abstract
An improved high performance butterfly is provided. The valve includes a valve body, a disk, an annular seat and a shaft. The disk has at least a portion of the circumference of the peripheral edge notched or beveled to provide better clearance of the annular seat and to reduce wear on the seat. The centerline of the shaft, corresponding to the center of rotation of the disk, is slightly offset from the centerline of the valve.