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. 08, 2012
Filed:
Jul. 01, 2008
Paul L. Camwell, Calgary, CA;
David A. Switzer, Calgary, CA;
Anthony R. Dopf, Calgary, CA;
Laura C. Neels-slingerland, Calgary, CA;
Paul L. Camwell, Calgary, CA;
David A. Switzer, Calgary, CA;
Anthony R. Dopf, Calgary, CA;
Laura C. Neels-Slingerland, Calgary, CA;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
The present disclosure describes a spindle for a mud pulse telemetry tool. The spindle includes a seal section having an outer surface for contacting a lip seal of a spindle housing in which the spindle is mounted; a top section attachable to at least part of a valve assembly for generating mud pulses; and a base section having a proximal end attachable to a drive motor for moving the spindle and a distal end attachable to the top section such that the seal section is fixed between the top and base sections. The seal section can be made of a ceramic material such as yttrium-stabilized zirconia.