Dennis M Mccrory

US Patent:

57619093, Jun 9, 1998

Filed:

Dec 16, 1996

Appl. No.:

8/767507

Inventors:

Robert J. Hughes - Lynn Haven FL
Kenneth Price - Lynn Haven FL
Dennis McCrory - Ellicott City MD
Billy Courson - Panama City FL
Joseph Rudolph - Panama City FL

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

F25B 2102

US Classification:

62 37

Abstract:

A device is provided for modifying the temperature of a breathing or other as supplied through a conduit. A heat exchanger is mounted in-line with the conduit. A thermoelectric device has first and second thermally conductive plates separated by at least one thermoelectric couple. The first thermally conductive plate is in thermal contact with the heat exchanger. A phase change material is in thermal contact with the second thermally conductive plate. A voltage is applied to the thermoelectric couple(s) to maintain the first and second thermally conductive plates at different temperatures. The phase change material changes from a first phase to a second phase at a phase change temperature that is selected to be between the different temperatures of the first and second thermally conductive plates.