Thomas M Harkins

US Patent:

50280171, Jul 2, 1991

Filed:

Aug 8, 1989

Appl. No.:

7/390707

Inventors:

Charles M. Simmons - Memphis TN
James R. Thompson - Cove-Southaven MS
Thomas V. Harkins - Memphis TN
Charles W. Talleg - Lake Coumovant MS

Assignee:

Federal Express Corporation - Memphis TN

International Classification:

B64D 1500

US Classification:

244134C

Abstract:

A deicing system for applying a deicing mixture to an aircraft is provided. Water is enclosed in a first tank, and deicing fluid in a second tank. A first pump transfers water through a heater, to a heat exchanger located in the second tank. The deicing fluid is thereby heated to a desired operating temperature by the hot water flowing through the heat exchanger, with the flow of hot water controlled by a heater control device. The first pump and second pump transfer heated water and heated deicing fluid, respectively, to a mixing chamber. A mixing control means controls the respective flows to provide the desired mixture. The mixture of water and deicing fluid is then applied to the aircraft via a nozzle.