Apparatus for heating dispensed flowable material

Claim 1

Apparatus for heating flowable material dispensed therefrom comprising: a. a housing adapted to receive a pressurized container, b. a heat exchanger assembly having an inlet and outlet including: 1. passageway means for conducting discharged contents of the pressurized container from the inlet to the outlet, 2. electric heating means in heat transfer relationship with said passageway, c. control means for said electric heating means including; 1. a switch assembly comprising; aa. first and second current conducting contact blades, both blades being biased in the same direction and supported at one end in a fixed spaced relationship by insulating material, bb. a pivotal cam element cooperating with both of said blades, cc. a stop member movable to stop the cam element against pivoting in one direction, dd. means to move the stop member to allow the cam element to pivot in said one direction, and 2. a two-position actuator, said actuator in the first position having means to move the first blade in a direction opposite its biased direction and thereby pivot the cam element to force the second blade to move in the same direction as the first blade but out of electrical contact therewith, and also thereby permitting the stop member to stop the cam against pivoting in said one direction, and said actuator in the second position having means to release the moving force on the first blade and allow it to move into contact with the second blade, and d. means from the outlet of said pressurized container to the inlet of the heat exchanger for conducting the dispensed material.