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. 08, 1983
Filed:
Nov. 18, 1980
Applicant:
Inventors:
M Jack Rollins, Muncie, IN (US);
William P Coppin, Muncie, IN (US);
Assignee:
Maxon Corporation, Muncie, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251174 ; 251196 ; 251328 ; 251368 ; 267165 ;
Abstract
The present invention comprises an improved ceramic gate valve having within the valve housing a ceramic valve gate, which is surrounded by a peripherally disposed compression band for providing strength thereto, and which is engaged by a pair of ceramic valve seats, which are in turn urged inwardly for such engagement by ceramic springs. The ceramic springs comprise a plurality of plates of ceramic material separated by spacers which are disposed in a staggered array to form the ceramic spring.