Patent ID: 6280278
Filing Date: 2001-08-28
Classification: A63H

Abstract:
A smoke generation system for use in model toy, said system comprising:a reservoir for holding smoke fluid,a heating element for converting said smoke fluid into smoke,a pump unit for delivering smoke fluid from said reservoir to said heating element, anda controller coupled to said pump unit, said controller governing the operation of said pump unit so as to control the delivery of smoke fluid to said heating element, wherein said pump unit comprises:a solenoid coupled to said controller, said solenoid being activated by said controller,a plunger which is retractable from a first position by a magnetic field generated by said solenoid,a lifting cup attached to a first end of said plunger,a reed disposed beneath said lifting cup, andan o-ring disposed in a cavity formed in a bottom surface of said reservoir,wherein said o-ring and said reed form a seal when said plunger is in said first position.