| Heating device for smoke generator -> Monitor Keywords |
|
|
  Heating device for smoke generatorUSPTO Application #: 20070223893Title: Heating device for smoke generator Abstract: A heating device for a smoke generator includes at least one heating rod and a vaporization tube. The vaporization tube includes a longitudinal passageway. The vaporization tube coils around the heating rod and includes an end connected to an outlet of a pump of a smoke generator. Preferably, the vaporization tube helically coils around the heating rod to form a coiling structure having at least one layer. Preferably, the vaporization tube includes a non-circular cross-section having at least one side in surface contact with a circumference of the heating rod. (end of abstract)
Agent: Kamrath & Associates P.A. - Golden Valley, MN, US Inventor: Zhao-Liang Chen USPTO Applicaton #: 20070223893 - Class: 392398 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070223893. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001]1. Field of the Invention [0002]The present invention relates to a heating device. More particularly, the present invention relates to a heating device for a smoke generator. [0003]2. Description of the Related Art [0004]Stage lamps and/or smoke are generally provided for better entertainment effect. Smoke is generated by smoke generators. A typical stage smoke generator comprises a pump for sucking oil in an oil tank into a channel. The smoke generator further includes a heating device having a heating rod for heating and thus vaporizing the oil in the channel. The vaporized oil (or smoke) is ejected through a nozzle to obtain a smoke effect. [0005]In a conventional design of the heating device, the vaporization tube is obtained by processing aluminum material, and the heating rod is then inserted into the vaporization tube. Two ends of the vaporization tube are respectively connected to an outlet of the pump and the nozzle. However, the vaporization tube has many joints and thus requires troublesome processing and is liable to be blocked in the joints. [0006]In another conventional design of the heating device, the metal body of the heating device is wrapped around a helical vaporization tube by casting, with two ends of the vaporization tube exposed outside the metal body and respectively connected to the outlet of the pump and a smoke outlet. The helical vaporization tube enhances the heat-conducting effect and increases the travel of the oil for vaporization. However, the structure and the manufacturing method of the heating device are complicated and, thus, costly. [0007]In both conventional designs, the smoke ejecting efficiency is unsatisfactory and the vaporization tube is liable to be blocked. The temperature distribution in the vaporization tube is not uniform, resulting in overheating or under-heating. Further, the travel of vaporization of oil is not long enough, leading to ejection of oil due to incomplete vaporization or over-vaporization with a smell of burn. As a result, blocking occurs easily. Further, the manufacturing procedure of the heating device is troublesome and material waste is inevitable, leading to an increase in the cost. BRIEF SUMMARY OF THE INVENTION [0008]An objective of the present invention is to provide a heating device for a smoke generator that has a simplified structure, that can be manufactured at a low cost, and that has improved high smoke ejecting efficiency. [0009]A heating device for a smoke generator in accordance with the present invention comprises at least one heating rod and a vaporization tube. The vaporization tube includes a longitudinal passageway. The vaporization tube coils around the at least one heating rod and includes an end adapted to be connected to an outlet of a pump of a smoke generator. [0010]Preferably, the at least one heating rod is a substantially cylindrical electric heating rod. [0011]Preferably, the vaporization tube helically coils around the at least one heating rod to form a coiling structure having at least one layer, with another end of the vaporization tube adapted to extend through a casing of the smoke generator to an outside of the smoke generator. [0012]Preferably, the vaporization tube includes a non-circular cross-section having at least one side in surface contact with a circumference of the at least one heating rod. [0013]Preferably, the cross-section of the vaporization tube is rectangular, triangular, or polygonal. [0014]Preferably, a heat-insulating layer wraps around the vaporization tube. [0015]Other objectives, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0016]FIG. 1 is a perspective view of a smoke generator with a heating device in accordance with the present invention. [0017]FIG. 2 is a schematic side view, partly sectioned, of the smoke generator in FIG. 1, wherein a cover of the smoke generator is removed. [0018]FIG. 3 is a view similar to FIG. 2, wherein a vaporization tube of the heating device is sectioned. [0019]FIG. 4 is a perspective view of the heating device in accordance with the present invention. [0020]FIG. 5 is a top view illustrating a smoke generator with a modified embodiment of the heating device in accordance with the present invention. DETAILED DESCRIPTION OF THE INVENTION Continue reading... Full patent description for Heating device for smoke generator Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Heating device for smoke generator patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Heating device for smoke generator or other areas of interest. ### Previous Patent Application: Instant water heater with ptc plastic conductive electrodes Next Patent Application: Steam generator Industry Class: Electric resistance heating devices ### FreshPatents.com Support Thank you for viewing the Heating device for smoke generator patent info. IP-related news and info Results in 15.76594 seconds Other interesting Feshpatents.com categories: Novartis , Pfizer , Philips , Polaroid , Procter & Gamble , |
||
