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:
Mar. 25, 1980
Filed:
Jun. 14, 1978
Gerald S Baker, Houston, TX (US);
Guerry L Hahn, Houston, TX (US);
Cameron Iron Works, Inc., Houston, TX (US);
Abstract
A choke suitable for use in the wellhead of a production well including a body having an inlet, an outlet and a seat, a valve member or gate adapted to move relative to said seat to restrict flow therethrough, a pressure responsive operator connected to move the gate with respect to the seat, a manual operator connected to said pressure responsive operator, means releasably connecting said manual operator to said gate to manually move said gate and for releasing said manual operator from said gate to allou said pressure responsive operator to move said gate and a control on the exterior of said manual operator connected to said releasable connecting means.