Bobbin assembly for a soldering/desoldering device using an etch

Details Bobbin assembly for a soldering/desoldering device using an etch Bobbin assembly for a soldering/desoldering device using an etch

1985-06-25

1988-06-21

Bartis, Anthony

Electric heating

Heating devices

Tool or instrument

219229, 219230, 219241, 219243, 219535, 219542, 219549, 228 19, 228 51, 338292, 338294, H05B 102, H05B 302, B23K 304, H01C 310

Patent

active

047526700

ABSTRACT:
A bobbin assembly for a soldering/desoldering device may be readily produced by utilization of a heater assembly comprising an electrically insulating tape having an etched foil heater in the form of serpentine comprising a plurality of coextensive side by side parallel leg portions bonded to one side thereof. The bobbin assembly is formed by wrapping the heater assembly about a cylindrical bobbin with the heater leg portions parallel to the bobbin axis so as to form a first insulating layer in contact with the bobbin, a layer comprising the heater in contact with the first layer and a second insulating layer in contact with the heater. A wire is then wound about the entire assembly, in a helical manner, to hold all elements in place. Additionally, a dissimilar metal lead may be spot welded to the bobbin to form a thermocouple junction used for sensing the bobbin assembly temperature.

REFERENCES:
patent: 1098437 (1914-06-01), Hadaway
patent: 2437747 (1948-03-01), Kuhn et al.
patent: 2592426 (1952-04-01), Jeffrey
patent: 3569665 (1971-03-01), Hager
patent: 3654427 (1972-04-01), Schoemwald
patent: 4035613 (1977-07-01), Sagawa et al.
patent: 4108713 (1978-08-01), Weisz
patent: 4439667 (1984-03-01), Sylvia
patent: 4571482 (1986-02-01), Vogel
patent: 4602144 (1986-07-01), Vogel

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