摘要:
A gas powered soldering tool (1) comprising a main body member (4) terminating in a soldering tip portion (8) has a combustion chamber (10) located therein. A gas catalytic combustion element (12) is located in the combustion chamber (10), and fuel gas is delivered into the combustion chamber (10) from a jet nozzle (15) and an air mixing venturi bore (17). A temperature responsive controller (28) for controlling the fuel gas supply to the jet nozzle (15) comprises a valve (39) having a valving member (58) which is operable by a permanent magnet (63) slidably located in a bore (64). A first member (70) of thermomagnetic material the Curie point of which is substantially similar to the temperature at which the main body member (4) is to be controlled is located at one end of the bore (64). The magnetic attraction between the first member (70) and the permanent magnet (63) is greater than the magnetic attraction between a second member (71) in the bore (64) and the permanent magnet (63) when the first member (70) is magnetic, thereby maintaining the valve (39) open, and vice versa when the first member (70) becomes non-magnetic for closing the valve (39).
摘要:
A water circulation system for hospitals and other facilities with large water circulating systems. A pressure and/or flow sensitive valve directs low pressure, high temperature water in the outlet head to a return pipe, while directing high pressure water to water outlet openings. The system allows a constant flow of heated water above 55° C. past water outlet heads even when the water system is not in use, thus avoiding static water in pipe lines and the growth of microorganisms.
摘要:
A gas powered soldering tool (1) comprising a main body member (4) terminating in a soldering tip portion (8) has a combustion chamber (10) located therein. A gas catalytic combustion element (12) is located in the combustion chamber (10), and fuel gas is delivered into the combustion chamber (10) from a jet nozzle (15) and an air mixing venturi bore (17). A temperature responsive controller (28) for controlling the fuel gas supply to the jet nozzle (15) comprises a valve (39) having a valving member (58) which is operable by a permanent magnet (63) slidably located in a bore (64). A first member (70) of thermomagnetic material the Curie point of which is substantially similar to the temperature at which the main body member (4) is to be controlled is located at one end of the bore (64). The magnetic attraction between the first member (70) and the permanent magnet (63) is greater than the magnetic attraction between a second member (71) in the bore (64) and the permanent magnet (63) when the first member (70) is magnetic, thereby maintaining the valve (39) open, and vice versa when the first member (70) becomes non-magnetic for closing the valve (39).
摘要:
A water circulation system for hospitals and other facilities with large water circulating systems. A pressure and/or flow sensitive valve directs low pressure, high temperature water in the outlet head to a return pipe, while directing high pressure water to water outlet openings. The system allows a constant flow of heated water above 55° C. past water outlet heads even when the water system is not in use, thus avoiding static water in pipe lines and the growth of microorganisms.
摘要:
A water circulation system for hospitals and other facilities with large water circulating systems. A pressure and/or flow sensitive valve directs low pressure, high temperature water in the outlet head to a return pipe, while directing high pressure water to water outlet openings. The system allows a constant flow of heated water above 55° C. past water outlet heads even when the water system is not in use, thus avoiding static water in pipe lines and the growth of microorganisms.
摘要:
A fluid flow regulator comprises in combination a stationary hollow duct housing having a first end and a second end. The device incorporates a movable member aligned concentric with the duct having an end essentially similarly shaped and sized to the first end of the housing. The member may be spaced apart from the duct so that fluid can enter the duct housing through an opening defined by the space between the end of the member and the first end of the duct, with the movement of the member changing the size of opening. A float within the duct controls the movement of the member. The float position can be preset to remain stationary, move in the direction of the fluid flow, or move the member opposite the direction of fluid flow, when fluid flow into the duct is at, increases above, or decreases below a predetermined amount, respectively.