Metal working – Method of mechanical manufacture – Electrical device making
Patent
1982-09-20
1986-02-18
Weidenfeld, Gil
Metal working
Method of mechanical manufacture
Electrical device making
29843, 339 17C, 339221R, 339263R, 339275B, H05K 330, H05K 334, H01R 402
Patent
active
045703388
ABSTRACT:
A screw terminal (14) is formed on a circuit board (12) by inserting a typical terminal screw (22) in a thread-forming operation into a tube (27) of a rim-like seat (21). The screw (22) is inserted into the tube (27) to a predetermined depth which is equal to or greater than the thickness of the circuit board (12). After the insertion of the screw (22) into the seat (21), the seat (21) is inserted into an aperture (16) in the circuit board (12). The aperture (16) is of circular cross section of a diameter such that the wall of the aperture engages the edges of the tube (27) in interfering contact. In a preferred embodiment, the wall of the aperture (16) is metallized and the seat (21) is of a copper coated, low carbon steel. After insertion of the seat (21) into the aperture (16), the seat (21) is soldered to the aperture (16) in an operation which fills any gaps between the circuit board and the seat and fixes the position of the walls with the confines of the circuit board.
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Bakulesh Patel, "Restraining Eyelet for Twist Pin Interconnect System", Motorola Technical Developments, vol. 2 (Jan. 1982) pp. 26-27.
AT&T - Technologies, Inc.
Bishop Steven C.
Schellin W. O.
Weidenfeld Gil
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