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:
Oct. 05, 2010
Filed:
May. 09, 2008
Roger L. Schultz, Ninnekah, OK (US);
Ken Michael, Frisco, TX (US);
Pete Dagenais, The Colony, TX (US);
Robert L. Pipkin, Duncan, OK (US);
Roger L. Schultz, Ninnekah, OK (US);
Ken Michael, Frisco, TX (US);
Pete Dagenais, The Colony, TX (US);
Robert L. Pipkin, Duncan, OK (US);
Wavefront Energy and Environmental Services Inc., Edmonton, CA;
Abstract
A well tool is operable to receive a flow of fluid. The well tool includes a first hydraulic area on which the fluid acts tending to move a first body to substantially seal against passage of fluid through an aperture. A second, larger hydraulic area is provided on which the fluid acts tending to move a second body. The second body is movable by the fluid acting on the second hydraulic to displace the first body from substantially sealing against passage of fluid through the aperture. An energy storing device is provided that is configured to store energy from movement of the second body until at least a specified amount of energy is stored and release the energy when the second body is moved to displace the first body from substantially sealing against passage of fluid through the aperture.