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:
Jun. 24, 2014
Filed:
Oct. 28, 2010
Daniel Jon Themig, Calgary, CA;
Kevin O. Trahan, The Woodlands, TX (US);
Christopher Denis Desranleau, Sherwood Park, CA;
Frank Delucia, Houston, TX (US);
Daniel Jon Themig, Calgary, CA;
Kevin O. Trahan, The Woodlands, TX (US);
Christopher Denis Desranleau, Sherwood Park, CA;
Frank DeLucia, Houston, TX (US);
Packers Plus Energy Services Inc., Calgary, CA;
Abstract
A method for opening a port through the wall of a ported sub including providing a sub with a port through its tubular side wall and providing a hydraulically actuatable valve to cover the port, the valve being actuatable to move away from a position covering the port to thereby open the port. The method further includes increasing pressure within the sub to create a pressure differential across the valve to move the valve toward the low pressure side, while the port remains closed by the valve, thereafter reducing pressure within the sub to reduce the pressure differential and driving the valve to move it away from a position covering the port.