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. 15, 2020
Filed:
May. 20, 2016
Halliburton Energy Services, Inc., Houston, TX (US);
Shiwei Qin, Conroe, TX (US);
Douglas Bruce Caraway, Conroe, TX (US);
Micheal Burl Crawford, Willis, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A seal assembly includes a seal groove defined at least partially between a first member and a second member rotatable relative to the first member, an annular sealing element positioned in the seal groove and providing a mud surface, a lubricant surface axially opposite the mud surface, an inner radial surface, and an outer radial surface radially opposite the inner radial surface. One of the inner and outer radial surfaces is a dynamic surface that seals against the first member when the sealing element rotates with the second member, or seals against the second member when the second member rotates relative to the sealing element. A lubricant channel is defined through the sealing element and extending between the lubricant surface and the dynamic surface to provide a lubricant to the dynamic surface.