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:
Mar. 08, 2016
Filed:
Dec. 26, 2012
Applicant:
Tempress Technologies, Inc., Kent, WA (US);
Inventors:
Jack J. Kolle, Seattle, WA (US);
Kenneth J. Theimer, Auburn, WA (US);
Assignee:
Tempress Technologies, Inc., Renton, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01); E21B 28/00 (2006.01); E21B 21/10 (2006.01); E21B 47/18 (2012.01); E21B 37/00 (2006.01); E21B 43/25 (2006.01);
U.S. Cl.
CPC ...
E21B 21/10 (2013.01); E21B 34/06 (2013.01); E21B 37/00 (2013.01); E21B 43/25 (2013.01); E21B 47/18 (2013.01);
Abstract
A hydraulic pulse valve for use in downhole tools includes a split ring seal to limit the fluid flow available to shift a poppet in the valve from an open position to a closed position. The split ring seal provides relatively long and repeatable pressure pulses, which improve the effectiveness of the hydraulic pulse valve for borehole applications.