Electrical connectors – With circuit conductors and safety grounding provision – Direct grounding of coupling part member passing into aperture
Patent
1993-04-16
1994-02-01
Paumen, Gary F.
Electrical connectors
With circuit conductors and safety grounding provision
Direct grounding of coupling part member passing into aperture
439695, H01R 13504
Patent
active
052827534
ABSTRACT:
The present invention relates to an inner pin base for a three-pole plug. The inner pin base has a round-sectional passageway at a top portion and two channels at two sides of a bottom portion. An upper and a lower rims of the passageway extend backward to form an upper and a lower tongue pieces, respectively, allowing a ground terminal to pass through while a projected portion on a top surface of the lower tongue piece engages with an oval hole at the end of the ground terminal passing therethrough. The channels each has a vertical and slender slot formed at their substantially closed front end, allowing a positive or a negative terminal to pass through. Two parallel stops extend backward from two internal sides of each vertical and slender slot and each has two vertically spaced projected portions inwardly extending toward the slender slot such that the vertically spaced projected portions of the parallel stops engage with recesses formed on the positive and/or the negative terminals when the terminals are separately inserted through the vertical and slender slots. In this manner, the inner pin base allows convenient assembly of the terminals and provides considerable strength to hold the assembled terminals so that the inner pin base along with the assembled terminals may be directly positioned in a mold for injection molding to form a finished three-pole plug.
REFERENCES:
patent: 3611257 (1971-10-01), Carkhuff
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