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:
Jan. 13, 2015
Filed:
May. 24, 2010
Applicants:
Christopher G. Bright, Nottingham, GB;
John E. Anthony, Derby, GB;
Inventors:
Christopher G. Bright, Nottingham, GB;
John E. Anthony, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B 29/10 (2006.01); F02G 1/04 (2006.01); F03G 7/06 (2006.01); F02K 1/08 (2006.01);
U.S. Cl.
CPC ...
F03G 7/065 (2013.01); F03G 7/06 (2013.01); F02K 1/085 (2013.01); Y02T 50/671 (2013.01);
Abstract
An actuator is provided having a temperature activatable actuating member comprising an inductively couplable material. The actuator has an electrical heating element for electrically heating the actuating member. The heating element is configured to inductively couple with said material when an AC current is passed through the heating element such that an opposing electromotive force is induced in the heating element. A detector is provided for detecting activation of the actuating member by sensing a change in the AC impedance of the heating element.