Geometrical instruments
Patent
1978-11-02
1980-08-19
McGlynn, Joseph H.
Geometrical instruments
339 50R, 339277R, H01R 1102
Patent
active
042181062
ABSTRACT:
A flat thin electrical connector attached to the end of a wire and for releasable engagement with an electrically conductive cylindrical pin at the end of a fixture-mounted fluorescent tube comprises a resilient metal plate having coplanar prongs on opposite sides of a narrow-throated pin-receiving and engaging aperture which extends inwardly from an outer edge of the plate. The prong edges bordering the aperture make electrical contact with the pin. A slit extending from the aperture and between the prongs facilitates temporary displacement of the resilient prongs from their common plane in opposite directions to enable widening of the aperture throat sufficiently to accommodate pin passage. Insulating material covers the metal plate except for the prong edges bordering the aperture. Preferably, a smaller diameter pin-receiving aperture is provided inwardly of the slit for use with a relatively small diameter cylindrical pin.
A method of fabricating an electrical connector generally comprises the steps of: providing an electrically conductive plate; connecting an electrical conductor to the plate; covering both surfaces and the peripheral edge of said plate and a portion of said electrical connector adjacent said plate with electrical insulating material; and punching through said electrical insulating material and through said plate in a region remote from said conductor to provide pin-receiving apertures and an associated slit. Preferably, the coating is provided by dipping the plate in liquid plastic and subsequently drying the liquid plastic.
REFERENCES:
patent: 1142479 (1915-06-01), Beck
patent: 1703325 (1929-02-01), Smarr
patent: 1845273 (1932-02-01), Hosking
patent: 2251176 (1941-07-01), Temple, Jr.
patent: 2758947 (1956-08-01), Feighner
patent: 3582866 (1971-06-01), Johnson et al.
patent: 3590387 (1971-06-01), Landis
patent: 3905013 (1975-09-01), Lee
patent: 3989335 (1976-11-01), Belokin, Jr.
McGlynn Joseph H.
Nilles James E.
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