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:
May. 21, 1991
Filed:
Sep. 15, 1989
Applicant:
Inventors:
Loren L Bovee, Marshalltown, IA (US);
Larry J Weber, Marshalltown, IA (US);
Assignee:
Fisher Controls International, Inc., Clayton, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251304 ; 251209 ;
Abstract
A control element for a fluid valve includes a main body having a rounded outer surface on a first side, an inner base surface and first and second opposed inner side surfaces adjacent the inner base surface on a second side. First and second ears are joined to the main body at spaced locations and extend away from the main body on the second side thereof. The ears include opposed inner surfaces adjacent the inner side surfaces of the main body. The inner surfaces together form opposed passage surfaces which diverge from one another at first and second ends to improve flow efficiency.