Electrical connectors – With insulation other than conductor sheath – Insulating body having plural mutually insulated terminals...
Patent
1989-03-06
1990-04-03
Paumen, Gary F.
Electrical connectors
With insulation other than conductor sheath
Insulating body having plural mutually insulated terminals...
439809, H01R 434
Patent
active
049136666
ABSTRACT:
The housing for an electrical device or control has a plurality of electric terminals, each having a base into which a screw is threaded with the screw head overlying the base to clamp a wire therebetween. Each base is recessed into the housing in a cavity having one side closed by a tab bent up from the base. The housing cavity and tab prevent lateral access to the space between the screw head and base except where permitted by a hole in the tab. The hole has an inverted teardrop shape and has its longitudinal axis tilted about 20.degree. so the larger end of the hole is further from the screw. The hole is positioned to the left of the screw (when viewed from outside the tab). As the screw is tightened the wire is forced down the tilted axis of the hole closer to the screw while friction between the screw head and the wire urges the wire further into the cavity. The base is provided with raised bumps or a recess. When the screw is tightened the wire is deformed against the bumps or into the recess.
REFERENCES:
patent: 2151674 (1939-03-01), Adam et al.
patent: 2233905 (1941-03-01), Wilson
patent: 2314855 (1943-03-01), Del Camp
patent: 3083348 (1963-03-01), Crowther
patent: 3431546 (1969-03-01), Averill
patent: 3793607 (1974-02-01), Smith et al.
patent: 4060305 (1977-11-01), Poliak et al.
Apcom, Inc.
Paumen Gary F.
Puerner Paul R.
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