E - Fixed Constructions – 03 – B
Patent
E - Fixed Constructions
03
B
137/147
E03B 7/10 (2006.01) E03B 7/14 (2006.01)
Patent
CA 2015672
A machine for thawing fire hydrants and the like. Within a thermally insulated cabinet, on a truck or trailer, are housed a water reservoir tank, a water heater, a delivery hose to extend from within the cabinet into a hydrant body, a circulating system and pump for delivering water from the heater (water delivered to the delivery hose to be at a predetermined pressure and temperature), a nozzle at the end of the delivery hose for vaporizing water leaving the hose into steam, a suction hose to extend from within the cabinet into the hydrant body, a suction pump associated with the suction hose to enable withdrawal of water collecting at the bottom of the hydrant body through the suction hose, and an appropriate power source for the circulating pump, suction pump and other electrical components. The machine according to the present invention provides an efficient and safe apparatus for thawing hydrants. All components are operational in outdoor temperatures as cold as -40°C (-40°F).
Regional Municipality Of Ottawa-Carleton
Ridout & Maybee Llp
LandOfFree
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