Structure of a smoke generator

• US 6,189,453 B1
• Filed: 06/11/1999
• Issued: 02/20/2001
• Est. Priority Date: 06/11/1999
• Status: Expired due to Fees

• Current Assignee: Yu-Chuan Lin
• Original Assignee: Yu-Chuan Lin
• Inventors: Lin, Yu-Chuan
• Primary Examiner(s): Jordan, Charles T.
• Assistant Examiner(s): Sánchez, Glenda L.
• Application Number:
  US09/330,184
• Time in Patent Office: 620 Days
• Field of Search: 102/334, 102/530, 102/531, 392/394, 392/397
• US Class Current: 102/334
• CPC Class Codes: F22B 1/282 with water or steam circulating in tubes or ducts
• CPC Class Codes: F41H 9/06 Apparatus for generating artificial fog or smoke screens for producing special effects on stages A63J5/00; smoke-pot projectors, e.g. arranged on vehicles, F42B5/155

Abstract

An improved structure of a smoke generator including a housing and a pump accommodated in the housing. The pump pumps a chemical solution in a container via a solution duct to a heating vaporization device. The heating vaporization device includes two opposed disposed heat insulation rings, a heating tube, and a power source. The heat insulation rings are metal rings of good electrical conductivity and have a periphery provided with a plurality of ring holes. A plurality of metal conductive wires each have two ends respectively connected to the opposedly arranged ring holes, with a coil formed in a center of each heat insulation ring. The heating tube is a metal tube of a high resistance coefficient and is mounted intermediate of the heat insulation rings. A solution inlet and a smoke ejecting end at both ends of the heating tube pass through and are secured in the coils on the same side. A vaporization section of the heating tube is disposed intermediate of the solution inlet and smoke ejecting end and configured to be winding. The solution inlet receives the solution transported via the solution duct to allow the solution to undergo vaporization in the vaporization section. Smoke formed within the vaporization section is ejected via the smoke ejecting end. The power source is pivotally connected to a circuit board and is further connected to the pump and the heating vaporization device to achieve connection of a control circuit. Two connecting wires of the circuit board are respectively connected to the heat insulation rings so that electric currents pass through the lead wires, coils, and the heating tube therebetween to achieve connection of the circuit. The heating tube forms resistance to generate high temperature that vaporizes the solution flowing therethrough. The smoke thus generated is ejected from the smoke ejecting end.

Claims

1. A vaporization system for a smoke generator having a housing, a pump located in the housing and communicating with a supply of smoke generating solution, the vaporization device comprising:

a) a protective cylinder mounted in the housing;

b) at least two spaced apart, annular insulating rings mounted within the protective cylinder;

c) an electrically conductive ring attached to each of the at least two insulating rings, each electrically conductive ring having a coil supported within the electrically conductive ring by a plurality of electrically conductive lead wires connected to the coil and to the associated electrically conductive ring;

d) an elongated electrically conductive heating tube supported by the coils within the protective cylinder, the heating tube having an inlet end connected to the pump, whereby the smoke generating solution is pumped into the heating tube, and a smoke ejecting end communicating with a smoke outlet of the housing;

e) an electrical power source connected to the pump and the electrically conductive rings so as to supply electric current thereto and to the heating tube via the lead wires and coils to thereby heat the heating tube and smoke generating solution therein to generate smoke; and

,

f) a control system controlling the electrical power source whereby operation of the pump is delayed for a predetermined time period after electrical power is supplied to the heating tube thereby enabling the heating tube to preheat before pumping the smoke generating solution into the heating tube.

2. The vaporization device for a smoke generator as defined in claim 1 wherein the electrical power source includes a voltage converter to convert alternating current into direct current to thereby allow utilization of alternating current as a power source, connecting wires of said voltage converter being respectively connected to said electrically conductive rings.

3. The vaporization device for a smoke generator as defmed in claim 1 wherein said electrical power source comprises batteries.

4. The vaporization device for a smoke generator as defmed in claim 1 wherein said heating tube has a vaporization section with a spiral configuration.