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. 14, 2019
Filed:
Nov. 18, 2016
Applicants:
John P. Smid, Cypress, TX (US);
Trent A. Geraci, Houston, TX (US);
Robert H. Wittman, Houston, TX (US);
Inventors:
John P. Smid, Cypress, TX (US);
Trent A. Geraci, Houston, TX (US);
Robert H. Wittman, Houston, TX (US);
Assignee:
National Oilwell DHT, LP, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/02 (2006.01); F16D 3/10 (2006.01); F16D 3/16 (2006.01); F16D 3/32 (2006.01); F16D 3/38 (2006.01); F16D 3/40 (2006.01); F04C 15/00 (2006.01); F04C 2/107 (2006.01); F04C 29/00 (2006.01); F16D 3/205 (2006.01); E21B 17/046 (2006.01);
U.S. Cl.
CPC ...
F04C 15/0073 (2013.01); E21B 4/02 (2013.01); E21B 17/046 (2013.01); F04C 2/1073 (2013.01); F04C 15/0061 (2013.01); F04C 15/0076 (2013.01); F04C 29/005 (2013.01); F04C 29/0071 (2013.01); F04C 29/0078 (2013.01); F16D 3/10 (2013.01); F16D 3/16 (2013.01); F16D 3/205 (2013.01); F16D 3/2055 (2013.01); F16D 3/32 (2013.01); F16D 3/38 (2013.01); F16D 3/40 (2013.01);
Abstract
The present invention is an apparatus, system and method for use of a mud motor having a bearing assembly, a transmission having torque and thrust transfer couplings with a catch pin interface, a power section, a rotor catch assembly, and a cross over sub-valve.