Accession Number : ADD017843

Title :   Ice Penetrating Hot Point.

Descriptive Note : Patent, Filed 1 Jul 87, patented 16 Jan 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Greenlaw, Robert T ; Kornblith, Jeffrey S

Report Date : 16 Jan 1996

Pagination or Media Count : 4

Abstract : A device for producing a small (approx. 1 diameter) penetration through ice quickly. The device is a penetrator having a conical shape. The penetrator includes a ceramic cone having spiral grooves that house a high resistance wire. The wire supplies heat upon being energized. A high thermal dielectric and a metallic shroud are placed over the cone and wire to provide uniform heating to the surrounding area and to prevent short-circuiting of the device. (AN)

Descriptors :   *PATENTS, *ICE PENETRATION, HEAT TRANSFER, HIGH TEMPERATURE, DIELECTRICS, VOLTAGE, CERAMIC MATERIALS, HEATING, THERMAL CONDUCTIVITY, CONICAL BODIES, ELECTRIC WIRE, SEA ICE, ICE BREAKUP

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE