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Electronic cigarette

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Electronic cigarette

An electronic cigarette comprises nicotine without harmful tar. The cigarette includes a shell, a cell, nicotine solution, control circuit, and an electro-thermal vaporization nozzle installed in the air suction end of the shell. The advantages are smoking without tar, reducing the risk of cancer, the user still gets a smoking experience, the cigarette is not lit, and there is no fire danger.
Related Terms: Air Suction Nicotine

Browse recent Ruyan Investment (holdings) Limited patents - Road Town, VG
Inventor: Lik Hon
USPTO Applicaton #: #20120273589 - Class: 239128 (USPTO) - 11/01/12 - Class 239 
Fluid Sprinkling, Spraying, And Diffusing > With Heating Or Cooling Means For The System Or System Fluid

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The Patent Description & Claims data below is from USPTO Patent Application 20120273589, Electronic cigarette.

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This Application is a Continuation of U.S. patent application Ser. No. 13/088,276 filed Apr. 19, 2012 and now pending, which is a Division of U.S. patent application Ser. No. 10/547,244 filed Feb. 27, 2006 and now abandoned, which is the U.S. National Phase Application of International Patent Application No. PCT/CN2004/000182 filed Mar. 8, 2004, which claims priority to Chinese Patent Application No. 03111582.9 filed Apr. 29, 2003. These applications are incorporated herein by reference.


Although smoking may cause serious respiratory diseases and cancer, it remains extremely difficult for smokers to quit smoking completely.

The active ingredient in a cigarette is nicotine. When smoking, nicotine, along with a lot of tar aerosol droplets from the burning cigarette, enters smoker\'s alveolus and is rapidly absorbed. The nicotine then produces a relaxing effect on the receptors of the smoker\'s central nervous system.

Nicotine is a kind of alkaloid with low molecular weight. A small dose of nicotine is essentially harmless to human body and its half-life in blood is quite short. The major harmful substance in tobacco is tar. The tar in tobacco contains carcenogenic substances.

Some cigarette substitutes that contain only nicotine without tar have been proposed. Although these cigarette substitutes are free from tar, their major disadvantage is that an effective peak concentration cannot be reached in the blood of a smoker due to slow absorption of nicotine. In addition, these cigarette substitutes cannot satisfy habitual smoking actions of a smoker, for example, inhaling action or sucking action, and thus are not likely to be widely accepted as effective substitutes for quitting smoking.



An objective of the present invention is to provide an electronic cigarette that overcomes the above-mentioned disadvantages. The present electronic cigarette includes a shell, a cell, nicotine solution, a control circuit, a high temperature vaporization nozzle and accessories. An electro-thermal vaporization nozzle is arranged within an air suction end of the shell. The control circuit provides starting current to the electric heater within the vaporization nozzle. Under the high temperature in the vaporization nozzle, the liquid is rapidly vaporized. The cell which provides power to the electric heater via the control circuit can be a disposable battery or a rechargeable battery.

The advantages of the present invention include smoking without tar, significantly reducing the carcinogenic risk. Furthermore, users still feel as if they are smoking, and the cigarette has no need to be lit and has no fire risk.


FIG. 1 is a structural diagram of the device in the first example in accordance with the present invention.

FIG. 2 is a block diagram of the circuit structure.

FIG. 3 is a schematic diagram of the structure of the high temperature vaporization nozzle and the electric-thermal element.

FIG. 4 is a schematic diagram of the valve made of memory alloy.

FIG. 5 is a schematic diagram of the peristaltic pump made of memory alloy.

FIG. 6 is a schematic diagram of the peristaltic pump.

FIG. 7 is a structural diagram of the electronic cigarette in a second example.

FIG. 8 is a structural diagram of the electronic cigarette in a third example.

FIG. 9 is a structural diagram of the electronic cigarette in a fourth example.

FIG. 10 is a structural diagram of the metering cavity in the fourth example.

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Fluid sprinkling, spraying, and diffusing
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Application #
US 20120273589 A1
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Air Suction

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