Electro-welding element of conductive plastic and an electro-wel

Details Electro-welding element of conductive plastic and an electro-wel Electro-welding element of conductive plastic and an electro-wel

1990-06-08

1993-07-20

Reynolds, Bruce A.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219517, 219541, 219544, 285286, H05B 358, H05B 308, F16L 1302

Patent

active

052295818

ABSTRACT:
The invention relates to an electro-welding element for interconnecting two pieces made of plastic, the electro-welding element being made of conductive plastic, either an intrinsically conductive plastic or an extrinsically conductive plastic. In a preferred embodiment, the electro-welding element includes an electro-welding portion constituted by two cylindrical sleeves and a thermoregulation portion constituted by a central portion interconnecting the two sleeves. An electro-welding coupling for interconnecting two tubes made of plastic may be formed by overmolding a plastic sleeve onto the electro-welding element, the sleeve being provided with power supply terminals.

REFERENCES:
patent: 3378672 (1968-04-01), Blumenkranz
patent: 3576387 (1971-04-01), Derby
patent: 4675512 (1987-06-01), Doucet et al.
patent: 4775501 (1988-10-01), Rosenzweig et al.
patent: 4855574 (1989-08-01), Lodder et al.
patent: 5003163 (1991-03-01), Jensen

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