Electric heating – Heating devices – Tool or instrument
Patent
1985-09-27
1987-08-18
Bartis, Anthony
Electric heating
Heating devices
Tool or instrument
219229, 219237, 219253, 219517, 219544, 219553, 228 51, 228 54, 252504, 252516, 338 25, 338223, 338240, 374174, H05B 102, B23K 304, H01C 800, H01B 106
Patent
active
046879030
ABSTRACT:
A soldering iron bit is heated by an electrical heating element including a resistive element consisting of granular boron carbide packed in a quartz tube embedded in a piece of copper. A first power lead is electrically connected to the boron carbide at one end of the quartz tube. This first power lead passes through and is electrically insulated from the piece of copper. The second power lead is electrically connected to the boron carbide at the other end of the quartz tube, either directly or via the piece of copper. In use, connection of the first and second leads to an electrical power source causes the resistive element to generate heat in a very fast manner and to transmit this heat to the piece of copper. The piece of copper may be connected to or constitute the soldering bit and can be provided with a built-in thermostat comprising a meltable salt inserted in a hole provided in the piece of copper. As soon as the salt reaches its melting point, it becomes conductive and allows an electrical current fed by a wire to circulate and to give a signal for switching off the electric power source of the element.
REFERENCES:
patent: 287758 (1883-10-01), Dyer et al.
patent: 421185 (1890-02-01), Miner
patent: 467075 (1892-01-01), Appleyard
patent: 594872 (1897-12-01), Harriman
patent: 606769 (1898-07-01), Sill
patent: 670667 (1901-03-01), Hadaway
patent: 796684 (1905-08-01), Thomson
patent: 864723 (1907-08-01), Bolling
patent: 870779 (1907-11-01), Hartwig
patent: 877843 (1908-01-01), Hoskin
patent: 1105047 (1914-07-01), Thomson
patent: 1451880 (1923-04-01), Lightfoot
patent: 1456760 (1923-05-01), Borton
patent: 1515202 (1924-11-01), Hineline
patent: 1592376 (1926-07-01), MacFarland
patent: 1663810 (1928-03-01), Morse
patent: 2001297 (1935-05-01), Boyles
patent: 2329085 (1943-09-01), Ridgway
patent: 2582481 (1952-01-01), Dvorak et al.
patent: 2668897 (1954-02-01), Beach et al.
patent: 2699485 (1955-01-01), Wolf
patent: 2861163 (1958-11-01), Asakawa
patent: 3201736 (1965-08-01), Ovshinsky
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