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:
Jun. 13, 2017
Filed:
Jul. 12, 2010
Seth G. Anderle, Spring, TX (US);
Ping C. Sui, The Woodlands, TX (US);
Mark E. Williams, The Woodlands, TX (US);
Guy Lefort, The Woodlands, TX (US);
Seth G. Anderle, Spring, TX (US);
Ping C. Sui, The Woodlands, TX (US);
Mark E. Williams, The Woodlands, TX (US);
Guy Lefort, The Woodlands, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
An extended life seal is incorporated into a drill bit used for drilling a wellbore. The drill bit can include a seal surface, a seal which engages the seal surface, and a groove which compresses the seal greater on opposite axial sides than at a central portion of the seal. The drill bit may include the seal having a cylindrical surface which engages the seal surface, and another cylindrical surface opposite the first surface, and the groove having a third cylindrical surface which engages the second surface, and wherein the groove simultaneously biases the seal toward the seal surface on opposite axial sides of the third surface. The drill bit may include the seal having right cylindrical shaped inner and outer surfaces, and a contact pressure between the seal surface and the seal being greater at each opposite side of the seal than at a central portion of the seal.