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:
Apr. 10, 2018
Filed:
Apr. 23, 2015
Baker Hughes Incorporated, Houston, TX (US);
Zachary S. Silva, Houston, TX (US);
William B. Handy, Spring, TX (US);
Baker Hughes, a GE company, LLC, Houston, TX (US);
Abstract
A ball is retained behind a circular array of collet fingers to be pushed out through the collets with a spring biased piston that is initially locked when run in the hole. The lock mechanism is a link that holds a potential force in the main spring. One end of the link is held by an acceleration or deceleration responsive retainer. The retainer has a conforming stop surface to a stop surface on the link. Sudden relative movement caused by acceleration of the housing allows the retainer that is flanked by opposed springs to move away from the stop surface or surfaces on the link. The link is an array of spaced fingers that can radially flex. The radial flexing combines with the power of the main spring to propel the piston against the ball for a release of the ball. A fracturing operation then ensues.