E - Fixed Constructions – 01 – H
Patent
E - Fixed Constructions
01
H
E01H 5/10 (2006.01)
Patent
CA 2330214
The invention is a portable ground thawing device using a shallow rectangularly shaped box-like apparatus (or thaw body) that is open-ended on the side that would normally form the floor of the thaw body. This open-ended box is constructed with a high degree of insulating value and is designed to trap heat against the surface of frozen ground while also including a reflective inner surface. The heating requirements are supplied by the use of an externally mounted radiant propane heater that is commonly available in the marketplace today. This attachment is built into one of the short vertical walls on the end of the thaw body by placing the burner element of the radiant heater in the most outward opening of a vented heat transfer tube. The vented heat transfer tube is a cylindrical opening that passes from the outside of the thaw body so as to leave an air gap to allow for the free flow of air from inside the thaw body to the outside by the burner. This free flow of air to the heater enhances the efficiency of the radiant heater and therefore increases the operational effectiveness of the invention.
Battison Williams Dupuis
Ground Specialties Inc.
Olson Lawrence Bernard
LandOfFree
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