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US 3,971,619 AGranted
Safe electrical connector
OwnerDonald J. Rohrsseninventor
Life of this patent
Estimating the term…
Abstract
A low cost, grounded electrical connector including an outlet receptacle and a plug that greatly reduces the possibility for injuries to children resulting from electrical connectors. The receptacle has electrical contacts that are offset from openings through which prongs of the plug are inserted, and the contacts and the prongs are constructed to provide a positive lock when electrical contact is made.
Claims8
An electrical connector comprising
- a receptacle having a face plate with one display face and a circuit face, at least one of set openings through the face plate, including an opening for a ground prong and a pair of openings for circuit prongs, electrical contact members offset from but adjacent to at least two openings of the set, said electrical contact members each having an inclined plane projecting outwardly from the circuit face and a detent projecting from the inclined plane whereby circuit prongs will pass over the detents to be securely held against the inclined planes of said contact members and to hold an electrical plug tightly against the display face, electrical connector terminals on the circuit face of the face plate, circuit means on the circuit face respectively interconnecting the electrical connector terminals with the electrical contact members;
- and
- an electrical plug having a plurality of electrical prongs projecting from one face of said plug, a pair of said prongs constituting circuit prongs and each having an angled portion extending therefrom, said angled portions being in essentially the same plane, being shaped to fit through the slots of a set of openings through the face plate, and being arranged to engage the inclined planes of the electrical contact members when said prongs are inserted through the face plate and are turned past the detents.
Dependencies are inferred from the claim text.