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:
Dec. 25, 2018
Filed:
Apr. 01, 2014
Levant Power Corporation, Woburn, MA (US);
Clive Tucker, Charlestown, MA (US);
Vladimir Gorelik, Medford, MA (US);
Jonathan R. Leehey, Wayland, MA (US);
Robert Driscoll, Derry, NH (US);
Colin Patrick O'Shea, Cambridge, MA (US);
Johannes Schneider, Cambridge, MA (US);
Ross J. Wendell, Medford, MA (US);
Tyson David Sawyer, Mason, NH (US);
ClearMotion, Inc., Billerica, MA (US);
Abstract
A method and system for measuring rotor position or velocity in an electric motor disposed in hydraulic fluid. The system comprises a contactless position sensor that measures electric motor rotor via magnetic, optical, or other means through a diaphragm that is permeable to the sensing means but impervious to the hydraulic fluid. An electronic sensor is positioned outside the operating fluid, whereas the motor is located in the fluid volume.