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:
Jun. 22, 2004
Filed:
Mar. 19, 2003
Applicant:
Inventors:
Joshua Goldberg, Woodbridge, CT (US);
David Arel, Granby, CT (US);
Assignee:
Hamilton Sundstrand, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 1/512 ; H05B 1/02 ;
U.S. Cl.
CPC ...
B64D 1/512 ; H05B 1/02 ;
Abstract
A propeller de-icing system ( ) includes heaters ( ) associated with propeller blades ( ). A controller ( ) uses ambient temperature information from a sensor ( ), for example. The heaters ( ) preferably comprise a material having a known coefficient of resistivity. The controller ( ) utilizes the coefficient of resistivity information and determines the temperature of the heaters based upon determining the resistance of the heaters. With the inventive system, the heater control is based upon the ambient temperature and a determination of the desired heater resistance corresponding to a desired heater temperature.