Abstract: An evaporator (1) comprises a housing (2) having a top wall (7) in which a receiving recess (14) is formed for receiving a container (15) for a liquid to be evaporated. A heat transfer element (30) having a first heat transfer abutment face (35) located in the receiving recess (14) transfers heat from an electrically powered heating element (25) to the container (15) through a second heat transfer abutment face (36) of a base (16) of the container (15). The heating element is planar and is located between the heat transfer element (30) and a locating element (40), which retains the heating element (25) tightly between the heat transfer element (30) and the locating element (40). A retaining magnet (48) located in the locating element (40) extends into a bore (52) in the heat transfer element (30) and co-operates with a complementary element (49) of magnetic material located in the base (16) of the container (15) for releasably retaining the container (15) in the receiving recess (14).

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: An evaporator (1) comprises a housing (2) having a top wall (7) in which a receiving recess (14) is formed for receiving a container (15) for a liquid to be evaporated. A heat transfer element (30) having a first heat transfer abutment face (35) located in the receiving recess (14) transfers heat from an electrically powered heating element (25) to the container (15) through a second heat transfer abutment face (36) of a base (16) of the container (15). The heating element is planar and is located between the heat transfer element (30) and a locating element (40), which retains the heating element (25) tightly between the heat transfer element (30) and the locating element (40). A retaining magnet (48) located in the locating element (40) extends into a bore (52) in the heat transfer element (30) and co-operates with a complementary element (49) of magnetic material located in the base (16) of the container (15) for releasably retaining the container (15) in the receiving recess (14).

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 disposable sachet of tobacco for use with a gas powered vaporizing device for vaporizing vaporizable constituents of the tobacco comprises a side wall of an impermeable paper based material and an upstream end cap and a downstream end cap which together define a hollow interior region for the tobacco. The sachet is shaped and sized to releasably and snugly engage a vaporizing chamber of the vaporizing device with a heat transfer member therein extending into the hollow interior region of the sachet. The upstream end cap and the downstream end cap are of a paper based permeable material which are permeable to air and an aerosol of vaporized constituents from the tobacco, respectively, to accommodate air into the hollow interior region of the sachet and the aerosol therefrom.

Abstract: A vaporising device (1) for vaporising herbal matter comprises a body member 7, within which a vaporising chamber (9) is formed for the herbal matter (2). A heat conducting spigot (43) extends into the vaporising chamber (9). A heat transfer element (45) comprising a carrier ring (46) and three equi-spaced apart heat transfer spigots (47) extending from the carrier ring (46) is removeably engageable in the vaporising chamber (9) for transferring heat directly into the herbal matter. A gas catalytic combustion element (12) located in a combustion chamber (10) formed in the body member (7) converts fuel gas to heat which is transferred through the body member (7), the heat conducting spigot (43) and the heat transfer spigots (47) of the heat transfer element (45) to the herbal matter in the vaporising chamber (9). The heat transfer element (45) is removable and replaceable by hand in the vaporising chamber (9) for cleaning thereof and for permitting cleaning of the vaporising chamber (9).

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 disposable sachet (1) of tobacco (2) for use with a gas powered vaporising device (5) for vaporising vaporisable constituents of the tobacco (2) comprises a side wall (45) of an impermeable paper based material and an upstream end cap (49) and a downstream end cap (53) which together define a hollow interior region (46) for the tobacco (2). The sachet (1) is shaped and sized to releasably and snugly engage a vaporising chamber (15) of the vaporising device (5) with a heat transfer member (25) therein extending into the hollow interior region (46) of the sachet (1). The upstream end cap (49) is of a paper based permeable material which is permeable to air and the downstream end cap (53) is of a similar permeable paper based material which is permeable to an aerosol formed by vaporised constituents from the tobacco (2) entrained in air drawn through the hollow interior region (46) of the sachet (1) when the sachet (1) is in the vaporising chamber (15).

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.