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.

Date of Patent:
Oct. 04, 2016

Filed:

Jun. 28, 2013
Applicant:

Team Oil Tools Lp, The Woodlands, TX (US);

Inventors:

Michael J. Harris, Houston, TX (US);

Kenneth J. Anton, Houston, TX (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/14 (2006.01); E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
E21B 34/14 (2013.01); E21B 23/004 (2013.01);
Abstract

Stimulation valves are provided that have a valve housing, an indexed driver, a reciprocating shifter, an actuation seat, and an isolation seat. The indexed driver is linearly actuated from an initial position through intermediate positions to a terminal position. In the driver initial and intermediate positions, the valve body shuts off fluid communication through ports provided in the housing. In the driver terminal position the valve body allows fluid communication through the ports. The reciprocating shifter indexes the indexed driver from its initial position through its intermediate positions to its terminal position. The actuation seat receives a ball for actuation of the shifter and releases the ball after actuation of the shifter. The isolation seat allows passage of the ball when the indexed driver is in its initial and intermediate positions and receives the ball when the indexed driver is in its terminal position.


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