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, 2004
Filed:
Aug. 16, 2002
Scott A. Reeves, Alice, TX (US);
Harry A. Hughes, Beeville, TX (US);
Dixie Iron Works, Ltd., Alice, TX (US);
Abstract
A plug valve is provided that may be lubricated while in service. The invention provides a high-pressure valve having a valve body containing a plug allowing bi-directional flow and moveable between an open and closed flow-through position. The valve permitting lubricating and sealing while in-service and in the closed or open position. The lubricating and/or sealing mechanism includes channels formed through the plug to a lubricant groove or grooves formed on the outside surface of the plug between the ends of the fluid conduit through the plug for directing lubricant to the plug-insert or plug-valve body interface when the plug is in the closed position and lubricant to the relief area formed by the insert when the plug is in the open position.