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. 29, 2018
Filed:
Nov. 03, 2016
Smith International, Inc., Houston, TX (US);
William Murray, Tomball, TX (US);
Lance D. Underwood, Morrison, CO (US);
Peter Thomas Cariveau, Spring, TX (US);
Brian P. Jarvis, Bristol, GB;
Nigel Wilcox, Bristol, GB;
Brian Williams, Bristol, GB;
Geoffrey Downton, Gloucestershire, GB;
Lawrence Lee, Houston, TX (US);
Shun'etsu Onodera, Katy, TX (US);
Daniel Alvarado, Fort Worth, TX (US);
Maxim Pushkarev, Katy, TX (US);
Gokturk Tunc, Cambridge, GB;
Andrei Plop, Dubai, AE;
Other;
Abstract
Techniques relate to a moving cavity motor or pump, such as a mud motor, including a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch. The motor may include a top sub, power section having a progressive cavity motor with a stator and rotor, a rotor catch, and an apparatus between a proximal and distal end of the rotor catch shaft. The apparatus may constrain the radial and/or tangential movement of the rotor catch shaft and the rotor.