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:
Feb. 08, 2005
Filed:
Mar. 19, 2002
Joshua I. Goldberg, Woodbridge, CT (US);
Joshua I. Goldberg, Woodbridge, CT (US);
Hamilton Sundstrand, Windsor Locks, CT (US);
Abstract
A system for providing power and communication signals to a device associated with a rotating component on an aircraft includes a communication strategy that allows power and command signals to be propagated along the same conductors. A stationary controller provides power and command signals to a controller that is supported for rotation with the rotating device. Only two slip rings are required to communicate power and command signals between the stationary and rotating controllers. Synchronous modulation preferably is used for sending the command signals to avoid interference from noise inherent in slip ring electrical couplings. A multi-zone propeller deicing heater is one example device that is controllable using the inventive approach.