Self regulating connecting device containing fusible material

Details Self regulating connecting device containing fusible material Self regulating connecting device containing fusible material

1990-10-22

1993-07-13

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1053, 219 10491, 219 1077, H05B 610

Patent

active

052275965

ABSTRACT:
In accordance with the present invention, a heater element which includes a layer of ferromagnetic material is included in a connecting device along with a fusible material such as a solder preform. The connecting device includes, for example, a hollow sleeve formed of heat shrinkable material. The solder preform, the heater element and the heat shrinkable hollow sleeve are integrally formed as a self-contained solder sleeve device such that the heater element is separate from the objects to be joined and does not completely shield to generation of a inductive current in the objects to be joined. The connecting device thus promotes even flow and bonding of the fusible material around a junction between the objects. Further, a connecting device is provided which permits visual inspection of a connection between objects bonded upon activation of the connecting device, thus providing an opportunity to confirm the integrity of the junction.

REFERENCES:
patent: 4590347 (1986-05-01), Thatcher et al.
patent: 4717814 (1988-01-01), Krumme
patent: 4852252 (1989-08-01), Ayer
patent: 4914267 (1990-04-01), Derbyshire
patent: 4940870 (1990-07-01), Shibata et al.
patent: 4987283 (1991-01-01), Beinhaur et al.
patent: 4987291 (1991-01-01), McGaffigan et al.
patent: 4991288 (1991-02-01), Scholz
patent: 4995838 (1991-02-01), Ayer et al.

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