Abstract: An electrical connector with an annular continuous metal to metal seal between the two connector shells includes a cylindrical first shell with an annular radially disposed sealing surface, a cylindrical second shell for being inserted into and clamped to the first shell, a frusto-conical ring attached about a peripheral region of the second shell and having an annular mating edge which is positioned to face the sealing surface of the first shell, and a coupling ring with a bayonet coupling apparatus for clamping the first and second shells into coupling relationship with each other. The positioning of the frusto-conical ring on the second shell is such that when the first and second shells are in the fully mated position, the peripheral mating edge region of the frusto-conical ring will press against the sealing surface of the first shell to form a continuous annular metal to metal seal between the first shell and the second shell.

Abstract: A self locking electrical connector assembly includes a connector shell and a coupling nut. The connector shell has a centrally located outwardly projecting annular flange with a plurality of retaining shoulders by which the coupling nut is mounted to the connector shell and allowed to rotate but prevented from substantial axial movement. The coupling nut cavity is defined by a front annular retention shoulder, a back access opening opposite the front retention shoulder, a cylindrical surface between the front shoulder and the access opening, an annular retention groove in the cylindrical surface adjacent the access opening and an annular back facing stop shoulder between the retention groove and the front shoulder. A retaining ring held in the retention groove abuts against a back facing shoulder of the shell's annular flange. A front facing stop shoulder of the annular flange abuts against the back facing stop shoulder of the coupling nut.

Abstract: A removal tool having a tubular shape with a chamfered end and a method for utilizing the same in an electrical connector apparatus. The connector apparatus has a contact attached around and to the end of a wire. An elliptical rear edge of the contact has major axis edge portions which come in contact with an inside shoulder of an insulator body passageway preventing the contact from being removed rearwardly from the connector. The chamfered end of the removal tool is inserted between the wire and the inside elliptical surface to resiliently deform the ellipse to a circular or near circular shape so that it may be withdrawn through a rear passageway.

Abstract: A connector assembly and method of making the same. A connector member, which may be either a socket or pin, has a front mating portion adapted to engage a reciprocal mating portion of a second connector; a tubular electric wire retaining portion into which a wire is inserted and held; and a rear elliptically cross-sectioned retention portion which is resiliently deformable to a circular cross section. The connector member is inserted into a circular cross-sectioned passageway in an insulating support assembly, the passageway having a central region with a larger diameter to define an interior protruding shoulder. As the connector member is inserted into the insulating support assembly passageway, the rear retention portion is deformed to a circular cross section conforming to the interior surface of the passageway.

Abstract: A stack of printed circuit boards are mechanically and electrically interconnected by a plurality of double ended contact members mounted in coaxial relationship in the boards. Each double ended contact member comprises a shrouded pin contact having a socket contact extending in a direction opposite to the pin contact. The socket contact of one double ended contact member in one board slidably engages with the shrouded pin contact of the double ended contact member in the next adjacent board. The contact members in the respective boards have cooperating standoff shoulders which space the boards apart a predetermined distance.