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:
Apr. 12, 1994
Filed:
Jul. 12, 1993
Lee E Treichel, Fulshear, TX (US);
Gary J Baumgartner, Leawood, KS (US);
Tapco International, Inc., Houston, TX (US);
Abstract
Disclosed is a slide valve for high temperature and/or abrasive service having a metal shell and a liner of refractory material forming a flowway having an inlet and an outlet and an orifice opening between them. A side opening closed by a removable bonnet intersects the flowway at the orifice opening and is provided with grooves extending transversely from the side opening to each side and beyond the orifice opening and forming upstream and downstream guide and slide shoulders. An orifice plate with an orifice is slidable into and out of position through the side opening, a slide or disc is slidable in the guides for movement to open, closed, and throttling positions. The orifice plate has a seal around its orifice which sealingly engages the upstream shoulder.