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.

Date of Patent:
Feb. 22, 2011

Filed:

Apr. 15, 2010
Applicants:

John R. Williams, Georgetown, TX (US);

Theresa J. Williams, Legal Representative, Georgetown, TX (US);

Inventors:

John R. Williams, Georgetown, TX (US);

Theresa J. Williams, legal representative, Georgetown, TX (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); E21B 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A bearing cooling system comprises a bearing assembly, a heat exchanger, a coolant flow circuit apparatus and a lubricant flow circuit apparatus. The bearing assembly is configured for being removably seated within a well drilling head housing and for having a stripper rubber assembly attached thereto. The bearing assembly includes bearings and a lubricant flow path configured for allowing lubricant to be circulated through the bearings. The heat exchanger has a lubricant core portion and a coolant core portion, which are jointly configured for allowing heat transfer between respective fluids of the core portions. The coolant flow circuit apparatus is coupled to the coolant core portion and is configured for circulating coolant through the coolant core portion. The lubricant flow circuit apparatus is coupled to the lubricant core portion and lubricant flow path, and is configured for circulating lubricant through the coolant core portion and the lubricant flow path.


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