Patents by Inventor Donavan Drewes

Donavan Drewes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Anti-icing system for radomes
    Patent number: 8969765
    Abstract: An ice protection system for a structure has at least one electro-thermal heating element carried by the structure and a controller for selectively controlling the operation of each heating element. The controller operates each heating element according to a selected duty cycle defined by a pattern of time intervals, the controller selecting the duty cycle at least partially in response to measurements of ambient conditions about the structure.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: March 3, 2015
    Assignee: Textron Innovations Inc.
    Inventors: Gary S. Froman, Donavan Drewes
  • Anti-Icing System for Radomes
    Publication number: 20070295712
    Abstract: An ice protection system for a structure has at least one electro-thermal heating element carried by the structure and a controller for selectively controlling the operation of each heating element. The controller operates each heating element according to a selected duty cycle defined by a pattern of time intervals, the controller selecting the duty cycle at least partially in response to measurements of ambient conditions about the structure.
    Type: Application
    Filed: December 9, 2004
    Publication date: December 27, 2007
    Inventors: Gary Forman, Donavan Drewes