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

• Current Assignee: PPC Broadband Incorporated (Belden Inc.)
• Original Assignee: PPC Broadband Incorporated (Belden Inc.)
• Inventors: Ehret, Trevor, Haube, Richard A., Montena, Noah, Zraik, Souheil
• Primary Examiner(s): Hammond, Briggitte R
• Application Number:
  US13/726,339
• Publication Number:
  US 20130115795A1
• Time in Patent Office: 197 Days
• Field of Search: 439578-584
• US Class Current: 439/578
• CPC Class Codes: H01R 13/5025 one or more pieces being of resilient material
• CPC Class Codes: H01R 13/5202 Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
• CPC Class Codes: H01R 13/62 Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
• CPC Class Codes: H01R 13/622 Screw-ring or screw-casing H01R13/623 takes precedence
• CPC Class Codes: H01R 4/48 utilising a spring, clip, or other resilient member H01R4/52 takes precedence
• CPC Class Codes: H01R 43/00 Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors of trolley lines B60M1/28
• CPC Class Codes: H01R 43/16 for manufacturing contact members, e.g. by punching and by bending
• CPC Class Codes: H01R 43/20 for assembling or disassembling contact members with insulating base, case or sleeve
• CPC Class Codes: H01R 43/26 for engaging or disengaging the two parts of a coupling device structural association with two-part coupling device H01R13/629
• CPC Class Codes: H01R 9/05 for coaxial cables
• CPC Class Codes: H01R 9/0521 Connection to outer conductor by action of a nut
• CPC Class Codes: H01R 9/0527 Connection to outer conductor by action of a resilient member, e.g. spring
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor
• CPC Class Codes: Y10T 29/49204 Contact or terminal manufacturing
• CPC Class Codes: Y10T 29/49208 by assembling plural parts

Abstract

A post having a first end, a second end, and a flange proximate the second end, wherein the post is configured to receive a center conductor surrounded by a dielectric of a coaxial cable, a connector body attached to the post, a coupling element attached to the post, the coupling element having a first end a second end, and a biasing member disposed within a cavity formed between the first end of the coupling element and the connector body to bias the coupling element against the post is provided. Moreover, a connector body having a biasing element, wherein the biasing element biases the coupling element against the post, is further provided. Furthermore, associated methods are also provided.

Claims

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

further

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

2. The coaxial cable connector of claim 1, wherein the biasing O-ring biases the internal lip of the nut against a portion of the flange of the post.

3. The coaxial cable connector of claim 1, wherein the biasing O-ring is configured to exert a constant biasing force against the nut.

4. The coaxial cable connector of claim 1, wherein the biasing O-ring is resilient and is configured to exert a constant biasing force against the nut when the connector is in the assembled state and when the nut moves between the first position and the second position relative to the interface port.

5. The coaxial cable connector of claim 1, wherein the biasing O-ring resists degradation and rust.

6. The connector of claim 1, wherein the biasing force is exerted against the nut along the axial direction and toward a forward direction.

7. The connector of claim 6, wherein the biasing O-ring is configured to improve electrical grounding reliability between the nut and the post only when the biasing force is greater than a counter force exerted against the nut along the axial direction and toward a rearward direction opposite from the forward direction.

8. The connector of claim 1, wherein the biasing force is exerted against the connector body along the axial direction and toward a rearward direction.

9. The connector of claim 8, wherein the biasing O-ring is configured to improve electrical grounding reliability between the nut and the post only when the biasing force is greater than a counter force exerted against the connector body along the axial direction and toward a forward direction opposite from the rearward direction.

10. A coaxial cable connector comprising:

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

a connector body configured to receive a prepared portion of the coaxial cable and engage the post, the connector body including a body contact surface;

a coupling element rotatably attached to the post, the coupling element including a non-circular cavity and a second end configured to mate with an interface port,

wherein the cavity of the coupling element is bounded by;

an internal lip extending along a radial direction and facing a rearward direction, the internal lip having a lip contact surface, and

an internal wall extending in an axial direction and facing a forward direction;

wherein the internal wall has an axial length that is greater than the radial length of the lip contact surface of the internal lip;

wherein the radially extending lip contact surface of the internal lip of the coupling element is spaced away from the body contact surface of the second end of the connector body so as to form a gap between the connector body and the internal lip of the coupling element when the connector is in the assembled state; and

a biasing structure located within the non-circular cavity and axially filling the gap between the connector body and the internal lip of the coupling element, the biasing structure extending between the coupling element and the connector body and configured to exert a biasing force on the lip contact surface of the internal lip of the coupling element and axially bias the coupling element towards the flange of the post and configured to exert a force on the internal wall of the coupling element to form a physical seal against the internal wall of the coupling element;

wherein the biasing structure is non-metallic and non-conductive and is also configured to form a physical seal against the body contact surface of the connector body.

11. The coaxial cable connector of claim 10, wherein the biasing structure is resilient and is configured to exert a constant biasing force against the coupling element when the connector is in the assembled state.

12. The coaxial cable connector of claim 10, wherein the biasing structure member is an over-sized O-ring having an axial dimension larger than the axial depth of the gap between the connector body and the internal lip of the coupling element.

13. The coaxial cable connector of claim 10, wherein the biasing structure biases the internal lip of the coupling element against a surface of the flange of the post.

14. The coaxial cable connector of claim 12, wherein the biasing structure resists degradation and rust.

15. The coaxial cable connector of claim 10, wherein the biasing member simultaneously contacts the outer internal wall of the coupling element, the lip contact surface of the internal lip of the coupling element, and the body contact surface of the connector body, so as to prevent axial movement of the coupling element toward the connector body, when the connector is in the assembled state.

16. The connector of claim 10, wherein the biasing force is exerted against the coupling element along the axial direction and toward a forward direction.

17. A coaxial cable connector comprising:

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

a connector body configured to receive a prepared portion of the coaxial cable and engage the post, the connector body including a body contact surface;

a coupling element rotatably attached to the post, the coupling element including a non-circular cavity and a second end configured to mate with an interface port,

wherein the cavity of the coupling element is bounded by;

an internal lip extending along a radial direction and facing a rearward direction, the internal lip having a lip contact surface, and

an internal wall extending in an axial direction and facing a forward direction;

wherein the internal wall has an axial length that is greater than the radial length of the lip contact surface of the internal lip;

wherein the radially extending lip contact surface of the internal lip of the coupling element is spaced away from the body contact surface of the second end of the connector body so as to form a gap between the connector body and the internal lip of the coupling element when the connector is in the assembled state; and

a biasing means for biasing the coupling element, the biasing means located within the non-circular cavity and axially filling the gap between the connector body and the internal lip of the coupling element, the biasing means extending between the coupling element and the connector body and configured to exert a biasing force on the lip contact surface of the internal lip of the coupling element and axially bias the coupling element towards the flange of the post and configured to exert a force on the internal wall of the coupling element to form a physical seal against the internal wall of the coupling element;

the biasing means being non-metallic and non-conductive and also configured to form a physical seal against the body contact surface of the connector body.

18. The coaxial cable connector of claim 17, the biasing means being resilient and configured to exert a constant biasing force against the coupling element when the connector is in the assembled state.

19. The coaxial cable connector of claim 17, the biasing means being an over-sized O-ring having an axial dimension larger than the axial depth of the gap between the connector body and the internal lip of the coupling element.

20. The coaxial cable connector of claim 17, wherein the biasing means bias the internal lip of the coupling element against a surface of the flange of the post.

21. The coaxial cable connector of claim 20, wherein the biasing means resist degradation and rust.

22. The coaxial cable connector of claim 17, wherein the biasing means simultaneously contact the outer internal wall of the coupling element, the lip contact surface of the internal lip of the coupling element, and the body contact surface of the connector body, so as to prevent axial movement of the coupling element toward the connector body, when the connector is in the assembled state.

23. The coaxial cable connector of claim 17, wherein the biasing force is exerted against the coupling element along the axial direction and toward a forward direction.

25. The method of claim 17, wherein the biasing member provides a physical seal between the nut and the connector body when the connector is in the assembled state.

26. The method of claim 22, wherein the nut includes a plurality of threads and the first position corresponds to a condition when the nut is threaded onto the interface port by two threads.

27. The method of claim 22, wherein the nut includes a plurality of threads and the first position corresponds to a condition when the nut is threaded onto the interface port by one thread.

24. A method of facilitating electrical continuity through a coaxial cable connector, comprising:

providing a coaxial cable connector including;

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 surface, the connector body configured to receive a portion of the coaxial cable and engage 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 partially tightened on an interface port, and a second position, where the nut is fully tightened on the interface port, the second position being axially spaced from the first position, the nut including an internal lip having a lip contact surface facing a rearward direction, and an outer internal wall surface extending along an axial direction, the lip contact surface and the outer internal wall surface intersecting to form a corner of an orthogonal cavity between the nut and the connector body, when the connector is in the assembled state;

disposing a non-conductive and non-metallic biasing member within the cavity between the nut and the connector body, wherein the biasing member is configured to exert a biasing force between the lip contact surface of the nut and the body contact surface 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 partially tightened on the interface port, and the second position, where the nut is fully tightened on the interface port; and

achieving electrical continuity through the nut and the post of the connector, when the nut is biased toward the post by the non-metallic and non-conductive biasing member, even when the nut is only partially tightened onto the interface port.

28. A coaxial cable connector comprising:

a post having a flange;

a coupling element configured to engage the post and axially move between a first partially tightened position relative to an interface port, where the coupling element is tightened onto interface port and located so that a mating surface of the interface port does not contact the flange of the post, and a second fully tightened position relative to the interface port, where the coupling element is fully tightened onto the interface port and located so that the mating surface of the interface port contacts the flange of the post, the second position being axially spaced from the first position, the coupling element including an inward lip and a contact surface extending along a radial direction and facing a rearward direction; and

a connector body configured to engage the post and a coaxial cable when the connector is in an assembled state, the connector body including;

an integral body biasing element having a contact portion extending from the body so as to contact the contact surface of the coupling element when the connector is in the assembled state; and

a groove located axially rearward of the integral body biasing element and configured to permit the integral body biasing element to flex;

wherein the integral body biasing element is configured to exert a biasing force against the contact surface of the coupling element sufficient to axially urge the inward lip of the coupling element towards the flange of the post when the coupling element axially moves between the first partially tightened position and the second fully tightened position, so as to improve electrical grounding reliability between the coupling element and the post even when the mating surface of the interface port does not contact the flange of the post and the coupling element is not fully tightened relative to the interface port; and

wherein the integral body biasing element is made of a substantially non-metallic and non-conductive material and is configured to improve electrical grounding continuity between the coupling element and the post without a need for a metallic conductive continuity member that is subject to corrosion and permanent deformation during operable engagement and disengagement with an interface port.

29. The coaxial cable connector of claim 28, wherein the integral body biasing element is configured to exert a constant biasing force against the coupling element.

30. The coaxial cable connector of claim 28, wherein the integral body biasing element biases the internal lip of the coupling element against a surface of the flange of the post.

31. The coaxial cable connector of claim 28, wherein the integral body biasing element extends a radial distance from the body to engage the coupling element.

32. The coaxial cable connector of claim 28, wherein the integral body biasing element is resilient and is configured to flex axially into a void formed by the groove.