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:
Jun. 05, 2018
Filed:
Oct. 14, 2016
Saylee P. Panchbhai, Houston, TX (US);
Nathan A. Etter, Broken Arrow, OK (US);
Evan G. Mackay, Tulsa, OK (US);
Saylee P. Panchbhai, Houston, TX (US);
Nathan A. Etter, Broken Arrow, OK (US);
Evan G. Mackay, Tulsa, OK (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Systems and methods for operating linear motors, and for determining whether a linear motor has reached the end of its power and return strokes. In one embodiment, an electric drive controller of an ESP system monitors position signals received from the system's linear motor and determines transition time differentials, transition counts from the beginning of a stroke, elapsed stroke times and related parameters. If predetermined conditions relating to these parameters are met, the controller determines that the linear motor's mover has reached the end of its stroke. The controller therefore reverses the phase order of the drive's output power and thereby reverses the direction of the mover.