Hardline coaxial cable connector

• US 7,972,176 B2
• Filed: 07/14/2009
• Issued: 07/05/2011
• Est. Priority Date: 07/23/2008
• Status: Expired due to Fees

• Current Assignee: Corning Optical Communications RF, LLC (Corning Incorporated)
• Original Assignee: Corning Gilbert Incorporated (Corning Incorporated)
• Inventors: Burris, Donald Andrew, Lutz, William Bernard
• Primary Examiner(s): Abrams; Neil
• Application Number:
  US12/502,633
• Publication Number:
  US 20100022125A1
• Time in Patent Office: 721 Days
• Field of Search: 439/583, 439/584
• US Class Current: 439/584
• CPC Class Codes: H01R 9/0521 Connection to outer conductor by action of a nut
• CPC Class Codes: Y10T 29/53209 Terminal or connector

Abstract

A hardline coaxial cable connector includes a body subassembly, a back nut subassembly and a deformable ferrule disposed within the back nut subassembly. The back nut subassembly is rotatable with respect to the body subassembly and a coaxial cable inserted therein. Axial advancement of the back nut subassembly toward the body subassembly causes the ferrule to deform radially inwardly.

Claims

1. A hardline coaxial cable connector for coupling a coaxial cable having a center conductor, an insulative layer, and an outer conductor to an equipment port, the connector comprising:

a body subassembly having a first end and a second end, the first end adapted to connect to an equipment port and the second end having internal or external threads;

a detachable back nut subassembly having a first end, a second end, and an inner surface, the first end having threads that mate with the internal or external threads on said second end of said body subassembly and the second end adapted to receive a prepared end of a coaxial cable; and

a deformable ferrule disposed within said back nut subassembly;

wherein the back nut subassembly is rotatable with respect to a coaxial cable inserted therein and the inner surface of the back nut subassembly comprises a tapered portion that decreases from a first diameter between the tapered portion and the first end of the back nut subassembly to a second diameter between the tapered portion and a second end of the back nut subassembly such that as the back nut subassembly is advanced axially toward the body subassembly as a result of the mating of the internal or external threads of the body subassembly with the threads of the back nut subassembly and rotating the back nut subassembly relative to the body subassembly, the tapered portion contacts the deformable ferrule and causes at least a portion of the ferrule to deform radially inwardly establishing a gripping and sealing relationship between the ferrule and the outer conductor thereby providing electrical and mechanical communication between the ferrule and the outer conductor and

wherein, upon detachment of the back nut subassembly from the body subassembly, at least a portion of the clamped region between the sleeve and the ferrule is maintained such that back nut subassembly remains rotatably captivated about coaxial cable; and

the back nut subassembly is capable of being repeatedly attached and detached from the body subassembly while still maintaining the electrical and mechanical communication and environmental sealing between the ferrule and the outer conductor.

2. The hardline coaxial cable connector of claim 1, wherein the ferrule is adapted to deform radially inwardly against the outer conductor of a coaxial cable inserted into the second end of the back nut subassembly in order to provide electrical and mechanical communication between said ferrule and said outer conductor.

3. The hardline coaxial cable connector of claim 2, wherein the electrical and mechanical communication between said ferrule and said outer conductor is maintained upon detachment of the back nut subassembly from the body subassembly.

4. The hardline coaxial cable connector of claim 1, wherein the connector further comprises a sleeve disposed within said back nut subassembly.

5. The hardline coaxial cable connector of claim 4, wherein the ferrule is adapted to deform radially inwardly against the outer conductor of a coaxial cable inserted into the second end of the back nut subassembly, wherein at least a portion of the outer conductor is inserted between an outer diameter of the sleeve and an inner diameter of the ferrule, such that as the ferrule deforms radially inwardly against the outer conductor, at least a portion of the outer conductor is clamped between the sleeve and the ferrule.

6. The hardline coaxial connector of claim 5, wherein the ferrule is adapted to cause a localized annular depression of the outer conductor and sleeve where at least a portion of the outer conductor is clamped between the sleeve and the ferrule.

7. The hardline coaxial cable connector of claim 1, wherein the body subassembly houses a conductive pin, said conductive pin having a front end for connecting to said equipment port and a back end, said back end comprising a socket contact for receiving the center conductor of a coaxial cable, said socket contact comprising a plurality of cantilevered tines.

8. The hardline coaxial cable connector of claim 7, wherein the connector further comprises an actuator disposed within said body subassembly.

9. The hardline coaxial cable connector of claim 8, wherein the connector further comprises a sleeve disposed within said back nut subassembly and wherein axial advancement of the sleeve toward the actuator causes the actuator to drive the cantilevered tines radially inwardly against the center conductor of a coaxial cable inserted into the socket contact.

10. A method of coupling a hardline coaxial cable having a center conductor, an insulative layer, and an outer conductor to an equipment port, the method comprising:

providing a hardline coaxial cable connector comprising;

a body subassembly having a first end and a second end, the first end adapted to connect to the equipment port and the second end having internal or external threads;

a detachable back nut subassembly having a first end, a second end, and an inner surface, the first end having threads that mate with the internal or external threads on said second end of said body subassembly and the second end adapted to receive a prepared end of a coaxial cable; and

a deformable ferrule disposed within said back nut subassembly;

connecting the first end of the body subassembly to the equipment port;

inserting the prepared end of a coaxial cable into the second end of the removable back nut subassembly; and

rotating the back nut subassembly relative to the coaxial cable and the body subassembly such that the back nut subassembly is advanced axially toward the body subassembly as a result of the mating of the internal or external threads of the body subassembly with the threads of the back nut subassembly;

wherein the inner surface of the back nut subassembly comprises a tapered portion that decreases from a first diameter between the tapered portion and the first end of the back nut subassembly to a second diameter between the tapered portion and a second end of the back nut subassembly such that as the back nut subassembly is advanced axially toward the body subassembly, the tapered portion contacts the deformable ferrule and causes at least a portion of the ferrule to deform radially inwardly against the outer conductor of the coaxial cable in order to provide electrical and mechanical communication between said ferrule and said outer conductor.

11. The method of claim 10, wherein the method further comprises detaching the back nut subassembly from the body subassembly prior to connecting the first end of the body subassembly to the equipment port and then reattaching the back nut subassembly to the body subassembly subsequent to inserting the prepared end of the coaxial cable into the second end of the back nut subassembly.

12. The method of claim 10, wherein the connector further comprises a sleeve disposed within said back nut subassembly.

13. The method of claim 12, wherein at least a portion of the outer conductor is inserted between an outer diameter of the sleeve and an inner diameter of the ferrule, such that as the ferrule deforms radially inwardly against the outer conductor, at least a portion of the outer conductor is clamped between the sleeve and the ferrule.

14. The method of claim 13, wherein the ferrule causes a localized annular depression of the outer conductor and sleeve where at least a portion of the outer conductor is clamped between the sleeve and the ferrule.

15. The method of claim 10, wherein the body subassembly houses a conductive pin, said conductive pin having a front end for connecting to said equipment port and a back end, said back end comprising a socket contact for receiving the center conductor of a coaxial cable, said socket contact comprising a plurality of cantilevered tines.

16. The method of claim 15, wherein the connector further comprises an actuator disposed within said body subassembly and a sleeve disposed within said back nut subassembly and wherein axial advancement of the sleeve toward the actuator causes the actuator to drive the cantilevered tines radially inwardly against the center conductor of a coaxial cable inserted into the socket contact.

17. A method of coupling and decoupling a hardline coaxial cable having a center conductor, an insulative layer, and an outer conductor to an equipment port, the method comprising:

performing the method of claim 10 to couple the coaxial cable to the equipment port; and

detaching the back nut subassembly from the body subassembly by rotating the back nut subassembly relative to the coaxial cable and the body subassembly such that the back nut subassembly is advanced axially away from the body subassembly as a result of the mating of the internal or external threads of the body subassembly with the threads of the back nut subassembly;

wherein the electrical and mechanical communication between said ferrule and said outer conductor is maintained upon detachment of the back nut subassembly from the body subassembly.

18. The method of claim 17 wherein the connector further comprises a sleeve disposed within said back nut subassembly.

19. The method of claim 18, wherein at least a portion of the outer conductor is inserted between an outer diameter of the sleeve and an inner diameter of the ferrule, such that as the ferrule deforms radially inwardly against the outer conductor, at least a portion of the outer conductor is clamped between the sleeve and the ferrule and wherein the clamp of at least a portion of the outer conductor between the sleeve and the ferrule is maintained upon detachment of the back nut subassembly from the body subassembly.