Abstract: A vaporizing device (80) for vaporizing vaporizable matter without burning the vaporizable matter, typically, tobacco, comprises a vaporization chamber (61) for the vaporizable matter, and a gas powered heating unit (1) for heating the vaporization chamber (61). The heating unit (1) comprises a housing (2) having a main cylindrical side wall (4) closed at its respective ends by a first end wall (5) and a second end wall (6) to form a main chamber (8) within which fuel gas is converted to heat. A secondary cylindrical side wall (62) extends from the second end wall (6) to form the vaporization chamber (61) for receiving a tobacco product (81), a cylindrical sleeve (83) of tobacco (84) for producing an aerosol of vaporizable constituents in the tobacco (84). A cylindrical partition wall (10) concentric with the main side wall (4) of the housing (2) extends into the main chamber (8) from the first end wall (5) and defines a primary combustion chamber (11) and a secondary combustion chamber (12).

Abstract: A vaporising device (80) for vaporising vaporisable matter without burning the vaporisable matter, typically, tobacco, comprises a vaporisation chamber (61) for the vaporisable matter, and a gas powered heating unit (1) for heating the vaporisation chamber (61). The heating unit (1) comprises a housing (2) having a main cylindrical side wall (4) closed at its respective ends by a first end wall (5) and a second end wall (6) to form a main chamber (8) within which fuel gas is converted to heat. A secondary cylindrical side wall (62) extends from the second end wall (6) to form the vaporisation chamber (61) for receiving a tobacco product (81), a cylindrical sleeve (83) of tobacco (84) for producing an aerosol of vaporisable constituents in the tobacco (84). A cylindrical partition wall (10) concentric with the main side wall (4) of the housing (2) extends into the main chamber (8) from the first end wall (5) and defines a primary combustion chamber (11) and a secondary combustion chamber (12).

Abstract: A device (1) for producing an aerosol from vaporizable constituents of tobacco comprises a vaporizing chamber (24) within which the tobacco is placed. A main housing (9) which forms a portion of the vaporizing chamber also forms a combustion chamber (18) within which a gas catalytic combustion element (19) is located for converting fuel gas to heat by catalytic action. A temperature responsive control valve (61) controls the supply of fuel gas to the combustion chamber for maintaining the temperature in the vaporizing chamber A thermal mass (96) secured to a tab portion (95) of the gas catalytic combustion element maintains the temperature of the tab portion at or above the ignition temperature of the gas catalytic combustion element during periods of fuel gas interruption by the control valve. Vaporised constituents of the tobacco are drawn from the vaporizing chamber through an aerosol accommodating tube (37) through a mouthpiece (38).

Abstract: A portable handheld vaporising device (1) comprises a housing (2) within which a vaporising chamber (7) is formed, wherein a liquid in a container (11) is vaporised to form an aerosol. A heatable element (21) having a dished abutment surface (22) is located in the vaporising chamber (7), and is heated by a gas powered heater (20) located in a main chamber (8) of the housing (2). A wick (18) extending through a port (17) of the container (11) is located spaced apart from the heatable element (21) when the container (11) is in a first state illustrated in FIG. 3. The container (11) is depressable into the housing (2) into a second state for engaging the wick (18) with the abutment surface (22) of the heatable element (21) for evaporating liquid which is wicked through the wick (18) from the container (11). A draw pipe (27) terminating in a mouthpiece (29) draws an aerosol of the vapour evaporated from the liquid for inhaling thereof.

Abstract: A glue gun (10) comprising a body member (3) in which a glue accommodating and melting chamber (4) for receiving stick glue is formed and combustion chamber 910) is also formed for accommodating a gas catalytic combustion element (14). A temperature responsive valve (25) controls the supply of fuel gas to the combustion chamber 910) for maintaining the temperature of the body member (3) at approximately 140° C.

Abstract: A vaporising device (80) for vaporising vaporisable matter without burning the vaporisable matter, typically, tobacco, comprises a vaporisation chamber (61) for the vaporisable matter, and a gas powered heating unit (1) for heating the vaporisation chamber (61). The heating unit (1) comprises a housing (2) having a main cylindrical side wall (4) closed at its respective ends by a first end wall (5) and a second end wall (6) to form a main chamber (8) within which fuel gas is converted to heat. A secondary cylindrical side wall (62) extends from the second end wall (6) to form the vaporisation chamber (61) for receiving a tobacco product (81), a cylindrical sleeve (83) of tobacco (84) for producing an aerosol of vaporisable constituents in the tobacco (84). A cylindrical partition wall (10) concentric with the main side wall (4) of the housing (2) extends into the main chamber (8) from the first end wall (5) and defines a primary combustion chamber (11) and a secondary combustion chamber (12).

Abstract: A glue gun (1) for melting a glue stick (2) comprises a heating device (3) which in turn comprises a main housing (4) having a combustion chamber (6) and a working body member (5) having a heating chamber (20) within which the glue stick (2) is melted. A gas catalytic combustion element (10) in the combustion chamber (6) converts fuel gas to heat for heating the main body member (4) for in turn melting the glue stick (2). Melted glue is dispensed through a dispensing nozzle (25). A cover (30) around the dispensing nozzle (25) forms a pair of exhaust gas passageways (33) on respective opposite sides of the dispensing nozzle (25) for conducting exhaust gases form an exhaust gas port (15) form the combustion chamber (6) to an exhaust gas outlet (34). Heat exchange fins (45, 46) form the passageway (33) into a circuitous tortuous passageway and transfer heat from the exhaust gases into the dispensing nozzle (25) for cooling the exhaust gases to a safe temperature.

Abstract: A device (1) for producing an aerosol from vaporisable constituents of tobacco comprises a vaporising chamber (24) within which the tobacco is placed. A main housing (9) which forms a portion of the vaporising chamber also forms a combustion chamber (18) within which a gas catalytic combustion element (19) is located for converting fuel gas to heat by catalytic action. A temperature responsive control valve (61) controls the supply of fuel gas to the combustion chamber for maintaining the temperature in the vaporising chamber A thermal mass (96) secured to a tab portion (95) of the gas catalytic combustion element maintains the temperature of the tab portion at or above the ignition temperature of the gas catalytic combustion element during periods of fuel gas interruption by the control valve. Vaporised constituents of the tobacco are drawn from the vaporising chamber through an aerosol accommodating tube (37) through a mouthpiece (38).

Abstract: A gas powered soldering tool (1) comprising a handle (2) and a tubular carrier member (15) extending therefrom. A combustion chamber (22) is formed in a distal end (19) of the carrier member (15) within which a catalytic combustion element (23) of cylindrical construction is located. Fuel gas/air mixture is supplied to the combustion chamber (22) through the carrier member (15). A receiving member (30) is crimped onto the carrier member (15) at the distal end thereof and releasably carries a soldering tip tool (18). A spigot (40) extending from the soldering tip tool (18) into the combustion chamber (22) conducts heat from the combustion chamber (22) to a soldering tip portion (36) of the soldering tool tip (18). A plug member (37) of the soldering tool tip (18) is threaded for engaging corresponding threads in a bore (31) of the receiving member (30) for facilitating replacement of the soldering tool (18).

Abstract: A thermally responsive valve (1) for controlling the flow of fuel gas to a gas powered appliance for in turn maintaining the temperature of the gas powered appliance at a substantially constant predetermined temperature within a relatively narrow predetermined temperature range comprises a valve housing (2) defining a valving chamber (5). Fuel gas is delivered through an inlet port (13) to the valving chamber (5) and from the valving chamber (5) through an outlet port (17). A concave bi-metal valving disc (23) in the valving chamber (5) co-operates with a valving element (21) for modulating the flow of fuel gas through the inlet port (13) into the valving chamber (5) in response to the temperature of the valving disc (23).

Abstract: A gas powered soldering tool (1) comprising a handle (2) and a tubular carrier member (15) extending therefrom. A combustion chamber (22) is formed in a distal end (19) of the carrier member (15) within which a catalytic combustion element (23) of cylindrical construction is located. Fuel gas/air mixture is supplied to the combustion chamber (22) through the carrier member (15). A receiving member (30) is crimped onto the carrier member (15) at the distal end thereof and releasably carries a soldering tip tool (18). A spigot (40) extending from the soldering tip tool (18) into the combustion chamber (22) conducts heat from the combustion chamber (22) to a soldering tip portion (36) of the soldering tool tip (18). A plug member (37) of the soldering tool tip (18) is threaded for engaging corresponding threads in a bore (31) of the receiving member (30) for facilitating replacement of the soldering tool (18).

Abstract: A hot melt glue gun comprising a main housing (5) having a glue stick accommodating bore (8) extending therethrough and terminating in a dispensing nozzle (9) through which melted glue is dispensed. A catalytic combustion element (16) is located in a combustion chamber (15) for raising the temperature of the main housing (5) to an appropriate temperature for melting the glue stick. Fuel gas is supplied to the catalytic combustion element (16) through a fuel gas valve (20) having a spindle (40) extending therefrom. A piezo electric ignition unit (27) generates an EMF for generating a spark across a pair of electrodes (25) in the combustion chamber (15) for igniting the fuel gas to initially burn with flame combustion to raise the temperature of the catalytic element (16) to its ignition temperature.