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:
Nov. 29, 1977
Filed:
Apr. 01, 1976
Applicant:
Inventor:
Bertram Magenheim, Bethesda, MD (US);
Assignee:
System Development Corporation, Santa Monica, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D / ;
U.S. Cl.
CPC ...
2441 / ; 3245 / ; 340234 ;
Abstract
A system for effecting the removal of ice from external surfaces of aircraft, and particularly from helicopter rotor blades, by the transmission of microwave electromagnetic energy into the ice so that it functions as a surface waveguide. The system includes a permanent surface waveguide with a dielectric constant close to that of ice, so that a composite surface waveguide is formed. The permanent surface waveguide is formed from a characteristically low-loss material, so that the microwave energy is dissipated as heat primarily in the ice layer, thereby very efficiently melting or heating the ice.