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:
Sep. 22, 2015
Filed:
Jun. 03, 2013
Applicant:
Dezurik, Inc., Sartell, MN (US);
Inventors:
Robert A. Blenkush, Sartell, MN (US);
Sidney Watterodt, Cambridge, CA;
Assignee:
DeZURIK, Inc., Sartell, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/105 (2006.01); F16K 3/30 (2006.01); F16L 57/06 (2006.01); F16K 3/02 (2006.01);
U.S. Cl.
CPC ...
F16L 55/105 (2013.01); F16K 3/0236 (2013.01); F16K 3/0281 (2013.01); F16K 3/30 (2013.01); F16L 57/06 (2013.01);
Abstract
Valves having removable interior wear rings in which the wear ring comprises a high-hardness metal ring, the high hardness metal ring having an exterior surface configured to engage the body of gate valve. A polymeric overlay covers at least a portion of the exterior surface of the metal ring, the polymeric overlay forming the final dimensional shape of the wear ring.