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:
Nov. 14, 2017
Filed:
Oct. 05, 2015
Applicant:
Tol-o-matic, Inc., Hamel, MN (US);
Inventors:
Igor Glikin, Plymouth, MN (US);
Ryan T. Klemetson, Buffalo, NY (US);
Gary W. Rosengren, Brooklyn Park, MN (US);
Assignee:
Tol-O-Matic, Inc., Hamel, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 25/20 (2006.01); F16K 31/06 (2006.01); F16K 31/04 (2006.01); E21B 21/10 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2021 (2013.01); E21B 21/106 (2013.01); F16K 31/04 (2013.01); F16H 2025/2081 (2013.01);
Abstract
Devices and methods for operating a linear actuator, optionally for use in controlling a choke valve as part of a managed pressure drilling operation. Such a device may include a motor, a transmission, a linear actuator and an override mechanism selectively engageable with the transmission to enable operation of the linear actuator independently of the motor.