Metal working – Method of mechanical manufacture – Electrical device making
Patent
1979-05-04
1981-03-03
Husar, Francis S.
Metal working
Method of mechanical manufacture
Electrical device making
H01R 4300
Patent
active
042532337
ABSTRACT:
An electrical accessory having a lead is connected to an electrical cord having a multi-strand conductor by placing the cord and the lead against a backing member. A tool member vibrated at an ultrasonic frequency is brought into engagement with the electrical cord. Insulative material surrounding the conductor is melted and displaced away from the tool member. The conductor is driven against the lead and the lead is driven into the surface of the backing member. Upon de-energization of the tool member, the displaced insulative material solidifies and secures the connection between the conductor and the lead.
The tool member includes a tip from which a sharpened projecting portion extends. The projecting portion severs the conductor in those instances where the conductor is to be connected to spaced leads. Serrated driving surfaces are positioned on either side of the projecting member. The serrations minimize excessive displacement of the strands of the conductor during the attachment process and provide a place for insulative material to go so that a good connection between the conductor and the leads can be obtained.
REFERENCES:
patent: 3148009 (1969-09-01), Abramson
patent: 3404453 (1968-10-01), Moranduzzo
patent: 3595116 (1971-07-01), Gilbert
patent: 3609643 (1971-09-01), Connan
patent: 3968398 (1976-07-01), Lehman
patent: 4028798 (1977-06-01), Bechard et al.
Bowers, Jr. Harry J.
Lovrekovic Steven N.
Arbes C. J.
Fulmer Norman C.
General Electric Company
Husar Francis S.
Kempton Lawrence R.
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