Combustion – Correlation of fuel or power supply with component movements...
Reexamination Certificate
2000-11-13
2001-12-11
Yeung, James C. (Department: 3743)
Combustion
Correlation of fuel or power supply with component movements...
C431S152000, C431S255000
Reexamination Certificate
active
06328555
ABSTRACT:
FIELD OF THE INVENTION
The present invention is related to a gas lighter which has a safety device, and more particularly to a gas lighter which is ignited only when the cap is open and a safety switch is released. When the cap is closed, the safety device is automatically locked again.
BACKGROUND OF THE INVENTION
The prior system has a safety device which is ignited when the nozzle is open by working of the lever. When the lever is taken off, the nozzle is automatically choked up to turn the light off. However, when the cap is open it may cause an accident due to carelessness. This is because the gas lighter, using a wheel, is ignited depending on whether the nozzle is open or not. Thus, the gas lighter using a wheel without a cap has a lever in front of the lower part of the wheel, so that the gas flows out, only when the lever is pressed at the same time when the wheel is turned.
Nevertheless, no safety device has been designed for this kind of gas lighter. Thus there always remains a chance of an accident occurring.
SUMMARY OF THE INVENTION
The present invention is provided in order to solve the above problem of the prior art of which the nozzle is open, whenever the cap is open. That is, even when the cap is open, the present invention does not allow gas to flow out through the nozzle. Gas can flow when the safety switch is adjusted to lift the nozzle, and then the nozzle is finally open.
As described above, the present invention is devised to prevent the gas from flowing out by means of when the safety switch is not working. The safety switch is automatically returned to the normal state when the cap is closed.
REFERENCES:
patent: 3328980 (1967-07-01), Reim
patent: 4102633 (1978-07-01), Zellweger et al.
patent: 4403945 (1983-09-01), Leitgib
patent: 5401163 (1995-03-01), Yamazaki
Kyunghan Park
McGuireWoods LLP
Yeung James C.
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