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:
Jan. 13, 1998
Filed:
Sep. 09, 1996
Applicant:
Inventors:
Loren Lee Bovee, Marshalltown, IA (US);
Gary Alan Witt, Sherman, TX (US);
David J Westwater, Albion, IA (US);
Assignee:
Fisher Controls International, Inc., Clayton, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
25131504 ; 251298 ; 251304 ;
Abstract
A fluid control valve for use in severe erosive fluid conditions which includes a ceramic plug seat. The ceramic plug seat is mounted to a metal valve element using a tapered mechanical bolt. The tapered portion of the mechanical bolt matches a cone-shaped interior surface portion within the ceramic plug to uniformly distribute the mounting forces within the ceramic plug to prevent cracking of the ceramic plug.