Electric heating – Heating devices – Tool or instrument
Patent
1998-09-21
1999-07-27
Walberg, Teresa
Electric heating
Heating devices
Tool or instrument
219248, 219251, H05B 100
Patent
active
059285362
ABSTRACT:
An electric soldering iron includes a perforated metal barrel having a front end and a rear end, a soldering tip axially extended from the front end of the soldering tip, a handle having a front end and a rear end, a connector connected between the rear end of the perforated metal barrel and the front end of the handle, a power cord extended out of the rear end of the handle, an electric heater installed in the perforated barrel and connected between the soldering tip and the power cord, an integrated control circuit installed in the handle for heating energy regulating control, a multi-step control switch mounted on the handle and connected to the integrated control circuit, and a LCD provided at the handle to display values selected through the multi-step control switch.
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patent: 4334147 (1982-06-01), Payne
patent: 4404462 (1983-09-01), Murray
patent: 4580038 (1986-04-01), O'Loughlin
patent: 4692589 (1987-09-01), Borsari et al.
patent: 4945210 (1990-07-01), Yoshimura
patent: 5043560 (1991-08-01), Masreliez
patent: 5485392 (1996-01-01), Frederickson et al.
patent: 5495093 (1996-02-01), Griffith
patent: 5747778 (1998-05-01), Liu
Patel Vinod D
Walberg Teresa
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