×

System and method for providing power and control through a rotating interface

  • US 7,355,302 B2
  • Filed: 11/15/2006
  • Issued: 04/08/2008
  • Est. Priority Date: 11/23/2005
  • Status: Active Grant
First Claim
Patent Images

1. A system for powering and controlling de-icing elements on aircraft propellers, the system comprising:

  • a control unit operable to receive power from a three-phase power source and to switch the power on and completely off with a series coupled switching element to generate a power signal having a plurality of power transitions, wherein at least one of the power transitions has a time duration different than other power transitions; and

    a distributor unit operable to-rotatably couple with the control unit,receive the power signal from the control unit,power at least a first de-icing element with the power signal,identify a power transition of a first time duration,during the first power transition, apply no power to the de-icing elements,identify subsequent power transitions of a second time duration equal to or shorter than the first time duration, and,in response to the subsequent power transitions, switch the power signal to at least a second de-icing element.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×