Abstract: An exhaust gas oxygen sensor and electrical connector arrangement for use in connecting the sensor to an electronic device capable of utilizing an electrical signal produced by the sensor. The electrical connector arrangement eliminates both male and female electrical connectors required in prior sensor electrical connector arrangements. The new electrical connector arrangement provides a leak-proof connection between a cylindrically-shaped sensor member and a connector assembly including an elastomeric grommet, a plastic sleeve and a plastic spacer used to retain connector terminals within the sleeve for receipt of cooperating terminals on the exhaust gas sensor. The connector-assembly sleeve and the cylindrically-shaped member of the oxygen sensor cooperate to produce a positive latching action of the connector assembly to the exhaust gas sensor.

Abstract: A separable waterproof electrical connector for a plurality of pairs of axially interconnectable cylindrical electrical terminals coupled to the ends of insulated wires, each terminal having an annular external recess in its cylindrical peripheral surface.The connector comprises a pair of elongated, rigid, non-conductive elastomeric, tubular members having generally complementary end portions fitted one into the other. A soft elastomeric sealing sleeve is concentrically interposed between the interengaged end portions to prevent the passage of moisture therebetween. Releasable clamping means on the exterior of the tubular member end portion hold the latter in engagement.Each elastomeric tubular member has an interior partition wall extending laterally of its longitudinal axis in juxtaposition to the interengaged end portions. Each partition wall has a plurality of axially extending apertures therethrough that are equally spaced around the longitudinal axis of the tubular members.