Patent ID: 6347188
Filing Date: 2002-02-12
Classification: A63J,F41H

Abstract:
A smoke generator comprisinga smoke fluid supply means, a heat exchanger comprising a length of electrically conductive tubing, the tubing comprising electrical connections spaced along a length of the tubing, the electrical connections being arranged so as to enable an electrical current to pass along the tubing, the electrical resistance of the tubing being such that a passage of electricity through the tubing generates heat a conduit disposed in the heat exchanger and connected to the supply means, a smoke outlet connected to the conduit, a temperature sensor adapted to sense a temperature of the tubing, control means connected to the sensor, the control means being adapted to control a supply of electricity to the electrical connections, the control means being adapted to cycle the supply of electricity on and off at a rate to allow residual fluid in the tubing to boil off.