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:
Sep. 03, 1996
Filed:
Apr. 29, 1994
Timothy Noack, Dumas, TX (US);
Wesley R Allred, Dallas, TX (US);
Halliburton Company, Dallas, TX (US);
Abstract
A ball valve having the capability of cutting coiled tubing extending therethrough. The valve includes a ball rotatably disposed within a housing and adjacent to a seat. Control arms prevent relative longitudinal movement between the ball and seat. The ball defines a pair of slots therein, each slot having a bearing surface. A pair of control pins are disposed on opposite sides of the ball and rotatably disposed in corresponding control frames disposed on opposite sides of the ball. Each control pin has an end with a bearing surface thereon extending into a corresponding slot in the ball so that flat contact is provided between the control pin and the ball. This greater area of contact between the pins and the slots allows a greater load to be transmitted to the ball to provide the shearing load necessary to shear relatively large diameters of coiled tubing which extend through the open valve. The valve is opened and closed by pressure actuation of a piston.