Continuity maintaining biasing member

  • US 8,480,431 B2
  • Filed: 12/24/2012
  • Issued: 07/09/2013
  • Est. Priority Date: 03/30/2011
  • Status: Active Grant
First Claim
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1. A coaxial cable connector for coupling an end of a coaxial cable and facilitating electrical connection with a coaxial cable interface port having a conductive mating surface, the coaxial cable having a center conductor surrounded by a dielectric, the dielectric being surrounded by a conductive grounding shield, the conductive grounding shield being surrounded by a protective outer jacket, the connector comprising:

  • a post having a flange, wherein the post is configured to receive a center conductor surrounded by a dielectric of a coaxial cable;

    a connector body, having a body contact portion, wherein the connector body is configured to receive a portion of the coaxial cable and is configured to be engaged with the post, when the connector is in an assembled state;

    a nut configured to engage the post and axially move between a first position, where the nut is tightened on an interface port and located so that the post does not contact a conductive mating surface of the interface port, and a second position, where the nut is further tightened on the interface port and located so that the post contacts the conductive mating surface of the interface port, the second position being axially spaced from the first position, the nut having an internal lip, the internal lip having a lip contact portion facing a rearward direction, and an outer internal wall portion extending along an axial direction substantially perpendicular to the radial direction, the lip contact portion and the outer internal wall portion intersecting to form a corner of an orthogonal cavity between the nut and the connector body, when the connector is in the assembled state; and

    a biasing O-ring configured to fit within the cavity between the nut and the connector body, wherein the biasing O-ring has an axial dimension larger than the axial depth of the cavity between the body contact portion of the connector body and the internal lip of the nut, so as to be configured to exert a biasing force between the lip contact portion of the nut and the body contact portion of the body, the biasing force being sufficient to axially move the nut towards the flange of the post when the nut axially moves relative to the post between the first position, where the nut is located on the interface port so that the post does not contact the conductive mating surface of the interface port, and the second position, where the nut is located on the interface port so that the post contacts the conductive mating surface of the interface port;

    wherein the biasing force exerted by the biasing O-ring helps improve electrical grounding reliability between the nut, the post, and the interface port, even when the nut is not tightened so as to be located in a second position relative to the interface port; and

    wherein the biasing O-ring is also configured to provide a physical seal between the nut and the connector body when the connector is in the assembled state; and

    furtherwherein the biasing O-ring is made of substantially non-metallic and non-conductive material.

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