F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
126/1, 309/51
F24H 3/02 (2006.01) F24H 3/04 (2006.01)
Patent
CA 1141412
ABSTRACT OF THE DISCLOSURE A portable heating unit is provided herein comprising a heater and a low velocity blower, an elongated lightweight collapsible flexible, heat-carrying duct, and an intermediate high velocity intake fan unit for mixing the low velocity heated air from the portable heater with ambient air and for introducing the mixed air streams into the inlet end of the flexible duct. The intake fan unit includes a venturi for assuring ade- quate mixing of the air within the elongated flexible collapsible tube to provide a high velocity flow of air at a substantially constant tempera- ture level along the length of the flexible tube. The tube is provided with a plurality of openings arranged in spaced intervals to eject high velocity jets of heated air at locations where they may be used most effec- tively. The unit is designed to be positioned upon the ground and the remote end is sealed and preferably staked or otherwise held to the ground to prevent undue movement. The diameter of the elongated flexible tube is selected to enable the tube to fit beneath a bench, preferably made of a metallic material to provide good heat conductivity. Openings are pro- vided in the tube to emit air beneath the bench in order to heat the bench and thereby to provide much needed warmth to persons sitting on the bench. Additional openings are arranged to emit the heated air at an angle chosen to direct the air toward the back part of the knees of persons sitting upon the bench. High velocity jets of heated air emitted from such open- ings may also be utilized as handwarming means for simultaneously warming the hands of a large group of persons in the vicinity of the tube by place- ment of the hands into the jets of heated air being emitted by the tube without danger of burning. The lightweight collapsible nature of the apparatus greatly facilitates both assembly and disassembly as well as the transportability of the portable heating system.
376136
Balon Jack
Balon Thomas
Balon Jack
Balon Thomas
Borden Ladner Gervais Llp
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