Abstract: Mateable receptacle and plug assemblies comprising a cable connector for use in a nuclear environment. The receptacle assembly and the plug assembly comprise mateable metallic shells, each surrounding one or more cable ends terminating in contacts. The contacts of the receptacle assembly and the plug assembly are equal in number and mateable. In each of the receptacle assembly and the plug assembly, the space between the shell and the cable ends and their contacts is filled with one or more heat, steam and radiation resistant insulative elastomeric compounds and/or epoxy compounds to prevent hosing of steam and moisture through the cables. The inside surfaces of the shells are uniquely configured to enhance bonding thereof to the insulative compounds, providing baffles creating pressure drops should the bond fail. O-rings are mounted on the plug assembly shell which cooperate with the receptacle assembly shell to form compression and butt seals to prevent leakage through the shell faces.

Abstract: An electrical panel assembly providing a plurality of receptacles for use with cable connectors. The connectors and receptacles are of the known type having single contacts which lock together when the connector is mated with the receptacle and rotated a partial revolution with respect thereto. The panel assembly comprises a front panel element with from two to five receptacles arranged in a side-by-side row therebehind. The front panel element has an opening therein for each receptacle through which a cable connector can extend for mating with the receptacle. Polarizing devices are provided in association with each receptacle and each cable connector to assure that each cable connector can be mated only with its respective receptacle.

Abstract: Safety locking structure to prevent unintentional disconnection of a mating pair of male and female electrical connectors. The locking structure comprises a hollow tubular shell and a U-shaped clevis pin having a base portion and a pair of legs. The mating end of a first one of the electrical connectors is insertable into the shell from one end thereof and is captively held therein. The other end of the shell is provided with two pairs of aligned holes, each pair being adapted to receive a leg of the U-shaped clevis pin with a portion of each clevis pin leg extending into the interior of the shell. The mating end of the second one of the connectors is insertable into the shell from the other end thereof and into mating relationship with the first connector.

Abstract: In an electrical connector assembly comprising a male connector and a mating female connector, both of which terminate at least one electrical cable, keying means in association with the male and female connectors enabling their mating and preventing their mating with similar connectors where such mating would be undesirable.