High frequency thermode driven device employing one-turn-seconda

Details High frequency thermode driven device employing one-turn-seconda High frequency thermode driven device employing one-turn-seconda

1992-10-20

1996-03-19

Lateef, Marvin M.

Electric heating

Metal heating

For bonding with pressure

B23K 300

Patent

active

RE0351806

ABSTRACT:
A high frequency thermode-driven device for use in hotbar soldering has a unitary metal support frame which is used as part of [for] as part of the secondaries of four individual transformers. The support frame also serves as the structural member to which the transformer and thermodes themselves are fastened. This is possible because the secondaries require only one turn; the upstanding ears of projections which extend radially outwardly from the support frame so as to protrude through the apertures in the transformer cores provide a source of voltage and become a secondary winding when connected to a load impedance, such as a thermode.

REFERENCES:
patent: 1802079 (1931-04-01), Helle
patent: 3742334 (1973-06-01), Leathers
patent: 3850222 (1974-11-01), Lejuene
patent: 4496821 (1985-01-01), Burgher et al.
patent: 4822969 (1989-04-01), Yao
patent: 4887758 (1989-12-01), Suzuki et al.
patent: 4912743 (1990-03-01), Zeltner
patent: 4942282 (1990-07-01), Jensen
patent: 5094381 (1992-03-01), Amos et al.
IBM Technical Disclosure Bulletin, vol. 11, No. 8 p. 1026; Jan. 1969.

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