1. Field of Invention
The present invention relates to a secure torch.
2. Related Prior Art
Conventionally, torches are not equipped with any security elements. Children could play with the conventional torches and actuate them accidentally. Children may get burnt or set their housing on fire.
Recently, people have devised torches with security elements. The buttons for the actuation of the torches and the security elements for avoiding accidental operation of the buttons are installed on a side of the torches so that children cannot actuate the torches by operating the buttons without handling the security elements beforehand. However, as such a button and such a security element are two separate elements, children can easily observe this. Children can operate the button and the security element alternately and actuate the torch. Such designs cannot prevent children from causing damage to humans and properties.
The present invention is therefore intended to obviate or at least alleviate the problems encountered in the prior art.
According to the present invention, a torch includes a can. A valve is movably installed on the can between a closed position and an open position. A controlling device is movably installed on the can between a releasing position for leaving the valve in the closed position and a lifting position for lifting the valve to the open position. A mount covers the valve so that the fuel can reach the mount from the valve. A nozzle is installed on the mount so that the fuel can reach the nozzle from the mount. An igniter is installed on the can. A switch is installed on the controlling device so that the controlling device and the igniter can only be pushed through the switch after the switch is turned relative to the controlling device.
The advantage of the torch of the present invention is the security of including the switch that can be pushed only after it is turned.
Other advantages and novel features of the present invention will become more apparent from the following detailed description referring to the attached drawings.
The present invention will be described via detailed illustration of the preferred embodiment referring to the drawings.
Referring to
A mount 20 is installed on the can 10. On the mount 20 is formed a tube 23 defining a passageway 21. The tube 23 is in communication with the valve 11. A nozzle 22 is installed around a first section of the tube 23 while an igniter 24 is installed in a second section of the tube 23. The igniter 24 includes an electrode 241 inserted into the nozzle 22 from the tube 23. When the igniter 24 is actuated, an arc will be generated between the electrode 241 and the nozzle 22 in order to ignite the fuel spreading from the nozzle 22. A rod 231 is extended from the second section of the tube 23 longitudinally. An insert 261 is extended from a block 26 formed on the exterior of the tube 23 between the first and second sections. A recess 25 is defined in the exterior of the tube 23 near the block 26.
A controlling device includes a wedge 36, a button 30 and a spring 35. The wedge 36 includes a ramp 363 at an end and a lug 361 at an opposite end. Preferably, the ramp 363 is stepped. The ramp 363 is put beneath an enlarged portion (not numbered) of the valve 11. When the ramp 363 is pushed closer to the valve 11, the ramp 363 will lift the valve 11.
The button 30 includes two lugs 34 connected to the lug 361 by a pin 362. The button 30 includes a chamber 31 in a first end and a tunnel 37 in an opposite second end so that the tunnel 37 is in communication with the chamber 31. The chamber 31 receives the second section of the tube 23 so that the button 30 can slide smoothly on the second section of the tube 23. A sleeve 321 is extended from a block 32 formed on the periphery of the button 30. The sleeve 321 receives the insert 261 so that the button 30 will not spin about the second section of the tube 23. Between the blocks 32 and 26 is compressed the spring 35 for pushing the button 30 from the mount 20. The tunnel 37 receives the rod 231. At the second end of the button 30 is formed a stop 38 next to the tunnel 37. Centrally in the second end of the button 30 is defined a screw hole 39. At the first end of the button 30 is formed a hook 33.
A first switch 40 axially defines an aperture 41. A screw 42 is driven into the screw hole 39 through the aperture 41 so that the first switch 40 is rotationally connected to the button 30. The first switch 40 includes a rod 43 for abutting the rod 231 at the tip and for abutting the stop 38 on a side.
A torque spring 44 is provided between the button 30 and the first switch 40 for returning the first switch 40 relative to the button 30. The torque spring 44 includes an end engaged with an anchor 45 formed on the first switch 40 and another end inserted in an aperture 301 defined in the button 30.
A second switch 50 includes an axle 51 put in the recess 25 so that the second switch 50 is pivotally connected to the tube 23. A cover 52 is formed on the second switch 50.
A shell 60 consists of two identical halves. The shell 60 defines a first slot 61 of receiving the dial 13 and a second slot 62 for receiving the second switch 50. The second slot 62 will always be closed by the cover 52.
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Although the entire controlling device has not reached the original position, the button 30 has left the igniter 24 in order not to generate any arc between the electrode 241 and the nozzle 22. Hence, the electricity can be saved while the burning continues.
The torch 1 exhibits at least two advantages. Firstly, it is secure. A child cannot push the first switch 40 before turning it. Thus, accidental ignition of the fuel is avoided. A child cannot pivot the second switch 50 before pushing the first switch 40. Thus, accidental release of the fuel is avoided. Secondly, it is convenient. A user can keep it working in a hand-free manner, because the blaze continues as the fuel keeps on reaching the nozzle 22 when the user pivots the second switch 50 after pushing the first switch 40.
The present invention has been described via detailed illustration of the preferred embodiment. Those skilled in the art can derive variations from the preferred embodiment without departing from the scope of the present invention. Therefore, the preferred embodiment shall not limit the scope of the present invention defined in the claims.
Number | Name | Date | Kind |
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6293782 | Tsai | Sep 2001 | B1 |
Number | Date | Country | |
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20070082308 A1 | Apr 2007 | US |