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:
Oct. 13, 1992
Filed:
May. 20, 1991
Applicant:
Inventors:
David L Thomas, Aberdeen, MS (US);
Timothy C Sumrall, Tupelo, MS (US);
David L Flippo, Amory, MS (US);
Samuel A Bryan, Hamilton, MS (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251328 ; 251170 ; 251171 ; 251214 ; 251360 ; 137375 ;
Abstract
A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to deflect the seal into the groove a relief cut out which places the seal in a shear mode.