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:
Jul. 26, 2005
Filed:
Jan. 29, 2003
Applicant:
William L. Koederitz, Cedar Park, TX (US);
Inventor:
William L. Koederitz, Cedar Park, TX (US);
Assignee:
Varco I/P, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B021/08 ;
U.S. Cl.
CPC ...
Abstract
A hybrid choke control system wherein the traditional choke experience is manifest in auditory and visual feedback mechanisms which are emulated by a digital control system enabling direct control of either position or back pressure associated with an adjustable choke device. The present invention enhances safety and efficiency when used in association with oil field drilling operations and in particular when applied to a device which provides the user with enhanced control capabilities for direction controlling the back pressure and position associated with drilling chokes during down hole operations.