Abstract: A cigarette lighter includes a reservoir for storing fuel and a head formed on the reservoir. Moreover, the cigarette lighter includes a valve for releasing the fuel from the reservoir, a nozzle put in the head for spraying the fuel from the valve, an ignition device for igniting the fuel sprayed from the nozzle, a cover for covering the head and an alarm for providing only one round of a message every time the cover is lifted.

Abstract: A fuel-based appliance is equipped with a vocal device. The fuel-based appliance includes a switch installed thereon. The vocal device is installed in the fuel-based appliance. The vocal device includes a circuit board, a chip installed on the circuit board, a speaker installed on the circuit board and a button that is connected with the circuit board and that can be pressed via moving the switch.

Abstract: A heater includes a handle, a combustion chamber, a valve and a thermal controller. A reservoir for fuel can be installed in the handle. The combustion chamber is mounted on the handle. The valve is received in the handle. The valve defines a passage through which fuel can flow from the reservoir into the combustion chamber for combustion. The thermal controller includes a memory element at least partially received in the combustion chamber and a rod connected between the memory element and the valve for controlling a rate at which fuel can flow through the passage defined in the valve based on the temperature in the combustion chamber. The memory element is a helical memory metal element. The memory element shrinks or expands when the temperature increases above a certain value.

Abstract: A fuel-based appliance is equipped with a vocal device. The fuel-based appliance includes a switch installed thereon. The vocal device is installed in the fuel-based appliance. The vocal device includes a circuit board, a chip installed on the circuit board, a speaker installed on the circuit board and a button that is connected with the circuit board and can be pressed via moving the switch.

Abstract: A heater includes a handle, a combustion chamber, a valve and a thermal controller. A reservoir for fuel can be installed in the handle. The combustion chamber is mounted on the handle. The valve is received in the handle. The valve defines a passage through which fuel can flow from the reservoir into the combustion chamber for combustion. The thermal controller includes a memory element at least partially received in the combustion chamber and a rod connected between the memory element and the valve for controlling a rate at which fuel can flow through the passage defined in the valve based on the temperature in the combustion chamber. The memory element is a helical memory metal element. The memory element shrinks or expands when the temperature increases above a certain value.

Abstract: A cigarette lighter includes a reservoir for storing fuel and a head formed on the reservoir. Moreover, the cigarette lighter includes a valve for releasing the fuel from the reservoir, a nozzle put in the head for spraying the fuel from the valve, an ignition device for igniting the fuel sprayed from the nozzle, a cover for covering the head and an alarm for providing only one round of a message every time the cover is lifted.

Abstract: The vocal circuit for a hand tool includes a circuit board, a switch connected with the circuit board, and a chip and a speaker installed on the circuit board. The hand tool may be a gas-burning soldering device including a fuel reservoir, a soldering iron subject to heat caused via burning fuel flowing from a pipe and an igniter received in the shell for igniting the fuel. The switch of the vocal circuit is located between a button of the igniter and a main switch mounted on the shell. The main switch includes a pin extending into the shell for contact with the switch of the vocal circuit and the button of the igniter through the switch of the vocal circuit.

Abstract: A gas-containing apparatus includes a can, a bag and a cover. The bag is installed in the can. The bag includes a tube formed thereon and with an internal side and an external side, a thread formed on the external side of the tube and a boss formed on the external side of the tube. The cover is mounted on the can. The cover includes a valve with an external side and an internal side, a thread formed on the internal side of the valve for engagement with the thread of the bag and a recess defined in the valve for receiving the boss, thus avoiding rotation of the tube relative to the valve.

Abstract: A cigarette lighter includes a body, a valve, a nozzle, an ignition device, a lever, a latch and an alarm. The body stores fuel. The valve is in communication with the body and movable between a closed position for keeping the fuel in the body and an open position for transferring the fuel from the body. The nozzle is in communication with the valve for spraying the fuel. The ignition device is mounted on the body for igniting the fuel sprayed from the nozzle. The lever is connected between the valve and the ignition device so that the valve is in the closed position when the ignition device is idle and that the valve is in the open position when the ignition device is actuated. The latch is movably mounted on the body between a locking position for preventing actuation of the ignition device and a releasing position for allowing actuation of the ignition device. The alarm is for contact with the latch for providing an alert in the releasing position of the latch.

Abstract: A handle tool includes a shell and a vocal circuit. The vocal circuit includes a circuit board, a switch connected with the circuit board and switched between an off position and an on position, a chip installed on the circuit board and a speaker installed on the circuit board. The hand tool may be a gas-burning soldering device. The hand tool may includes a fuel reservoir received in the shell, a valve mounted on the fuel reservoir, a pipe leading from the valve, a soldering iron mounted on the shell and subject to heat caused via burning fuel flowing from the pipe and an igniter received in the shell for igniting the fuel. The igniter includes a button formed thereon. In an aspect, the switch of the vocal circuit is mounted on the shell. In another aspect, a main switch is mounted on the shell. The switch of the vocal circuit is received in the shell. The switch of the vocal circuit is located between the button of the igniter and the main switch.

Abstract: An actuating mechanism for a tool includes a shell and a switch actuator. The shell includes a slot defined therein between two edges and at least one boss formed thereon. The switch actuator includes two hooks to be inserted through the slot for engagement with the two edges and at least one recess defined therein for receiving the at least one boss in a releasable manner. The switch actuator includes two tabs extending from a side thereof for insertion in the slot. The switch actuator includes a driving element extending from a side thereof through the slot for driving another element of the tool. The switch actuator includes a slot defined therein between two edges, at least one of which defines the at least one recess for receiving the at least one boss. The at least one boss is a semi-cylinder, and the at least one recess is semicircular. The shell includes two bosses, and each of the edges by the slot of the switch actuator defines a recess for receiving one of the bosses.

Abstract: A gas control valve includes a first element, a second element, a mediate element, a sleeve, a rod and a control element. The first element defines a first path. The second element defines a second path and a hole in communication with the second path. The mediate clement defines a passage. The mediate clement is sandwiched between the first and second elements so that the first path is in communication with the second path through the passage. The sleeve includes a first end and a second end. The first end of the sleeve is inserted into the hole. The rod includes a first and a second end. The rod is inserted into the sleeve so that the first end of the rod is inserted into the second path and that the second end of the rod is exposed through the second end of the sleeve. The control element is connected between the second end of the sleeve and the second end of rod. Normally, the control element keeps the rod in a first position wherein the first end of the rod opens the passage.

Abstract: A gas control valve includes two blocks with a mediate plate located therebetween. Each of the two parts has a gas path facing the mediate plate which has a passage which communicates with the two gas paths. A sleeve is engaged with a hole in one of the two parts and a rod is movably received in said sleeve. A first end of said rod is movably inserted in said second gas path and can be lowered to seal the passage in the mediate plate. A memory member or bi-metal has a first plate fixedly connected on a top of said sleeve and a second plate fixedly mounted to said second end of said rod. The memory member or bi-metal is located in the gas combustion chamber and can be deformed according to the temperature to lower the rod to obtain less gas flow.

Abstract: A safety switch device for a gas jet soldering gun includes a ignition push button having an outer periphery provided with a locking drive block, a housing having an inner wall defining an L-shaped drive slot mating with the locking drive block, and a spring mounted in the ignition push button for providing an axial thrust and a rotational torque. In such a manner, the user has to rotate the ignition push button to a proper position so that the ignition push button can be pressed to drive the igniter to ignite the fire, thereby preventing a child from freely opening the gas jet soldering gun.

Abstract: A safety switch device for a gas jet soldering gun includes a ignition push button having an outer periphery provided with a locking drive block, a housing having an inner wall defining an L-shaped drive slot mating with the locking drive block, and a spring mounted in the ignition push button for providing an axial thrust and a rotational torque. In such a manner, the user has to rotate the ignition push button to a proper position so that the ignition push button can be pressed to drive the igniter to ignite the fire, thereby preventing a child from freely opening the gas jet soldering gun.

Abstract: A nozzle assembly for a gas burner includes a nozzle body having a tip end and an open end in which three netted members and a stop ring are received. An aperture is defined through a periphery of the nozzle body and the aperture communicates with an interior of the nozzle body and the open end. A space is defined between two adjacent netted members so as to provide a space for mixing gas and air.

Abstract: A flame adjusting device for a gas burning device includes a flame adjusting wheel securely mounted to a disk of a valve on a gas tank and a neck extends from a side of the flame adjusting wheel and a ring is mounted to the neck. A protrusion extends from the ring and is accessible for the users. When shifting the protrusion, the ring and the flame adjusting wheel rotate to adjust the gas released via the valve. When a user wants to change the volume of gas released via the valve, he/she holds the protrusion and rotates the flame adjusting wheel so that the disk of the valve is rotated while the ring is remained still.

Abstract: A safety device for a gas torch includes a frame movably inserted into a notch in a top of a handle of the gas torch and the ignition device of the torque is received in the frame. A pressing member is slidably connected to the frame and connected to lever of a valve for releasing gas from a tank. A front end of the pressing member is inserted in the notch of the handle to prevent the pressing member from being unintentionally pushed. The front end of the pressing member has to be pulled out from the notch before it is pushed.

Abstract: A control mechanism for gas welding guns including a control chamber disposed between a solder head at an upper end and a gas tank at a lower end for screwably connecting the solder head and assembly a connecting seat and a gas flow adjusting disk at an upper end of the gas tank. The control chamber is fitted with a control cover which may slidably coupled to a window opening defined by the control chamber and a plurality of shallow depressions on the outer surface of the control chamber. The inner side of the control cover is integrally provided with a clamp plate which is integrally provided with a base with two side hooks. The two facing walls of the window opening of the control chamber are respectively provided with bosses.