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:
Jul. 17, 2018
Filed:
Dec. 10, 2015
Applicant:
Wwt North America Holdings, Inc., Houston, TX (US);
Inventors:
Sarah Mitchell, Fullerton, CA (US);
Philip Wayne Mock, Costa Mesa, CA (US);
Assignee:
WWT North America Holdings, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/02 (2006.01); E21B 17/14 (2006.01);
U.S. Cl.
CPC ...
E21B 4/02 (2013.01); E21B 17/14 (2013.01);
Abstract
An oscillating mud motor having a valve section and a piston section positioned within a hollow cylindrical housing wherein the valve section comprises a timing cycle valve and a spool valve which hydraulically controls rotational movement of a piston on a central shaft in the piston section for linear reciprocation within the housing.