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:
May. 02, 2006
Filed:
Sep. 12, 2003
Applicant:
Bruce H. Burr, Houston, TX (US);
Inventor:
Bruce H. Burr, Houston, TX (US);
Assignee:
ReedHycalog, L.P., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/25 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radial lip seal for use with roller cone drill bits is at least partially collapsed and held in place when the drill bit is subjected to hydrostatic pressure in the well bore when performing drilling operations. The drill bit and seal cooperate to form at least one void intentionally established between the outer surface of a seal recess in the bit and the outer surface of the lip seal. The drill bit has a spindle and a rolling cutter positioned around the spindle. The seal recess is formed in the rolling cutter and has an outer surface to carry the lip seal.