Coaxial cable for exterior use

• US 7,425,676 B2
• Filed: 09/08/2005
• Issued: 09/16/2008
• Est. Priority Date: 09/08/2005
• Status: Expired due to Fees

• Current Assignee: SBC Knowledge Ventures LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Eng, Wing
• Primary Examiner(s): Mayo, III; William H
• Application Number:
  US11/222,033
• Publication Number:
  US 20070051523A1
• Time in Patent Office: 1,104 Days
• Field of Search: 174/110.R, 174/110.SR, 174/110.F, 174/28, 174/36, 174/102.R, 174/105.R, 174/108
• US Class Current: 174/36
• CPC Class Codes: H01B 11/18 Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
• CPC Class Codes: H01B 7/18 Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
• CPC Class Codes: Y10T 29/53213 Assembled to wire-type conductor

Abstract

A coaxial cable for outdoor use having at least one center conductor, at least one dielectric around the conductor with enhanced Structural Return Loss features, a woven braided shield wrapped around the dielectric with superior BNC connector pull testing features, a substantially water-proof insulating jacket wrapped around the shield, and dry floodant dispersed along the interior surface of the jacket. Additionally, an inline protector is connected to at least one end of the cable. In the case where the inline protector is female, the invention contemplates a male BNC connector crimped to the end of the cable for attachment to the protector. A kit includes a length of coaxial cable, an inline protector, and, in certain specific embodiments, a male connector to connect the cable to a female protector port.

Claims

1. A coaxial cable for outdoor use, the cable comprising:

a center conductor having a structural return loss of at least 35 db;

a dielectric surrounding the conductor;

a shield surrounding the dielectric, wherein the shield has a braid;

a substantially water-proof insulating jacket surrounding the shield, the jacket having an interior surface;

dry floodant hydroscopic powder dispersed on the interior surface of the jacket such that substantially all of the dry floodant hydroscopic powder is located between the jacket and the shield; and

an inline protector connected to at least a first end of the cable.

2. The cable of claim 1, wherein the exterior diameter of the cable is approximately 0.235 inch or less.

3. The cable of claim 1, wherein the exterior diameter of the cable is approximately 0.134 inch or less.

4. The cable of claim 1, wherein water penetration of the jacket meets or exceeds GR-421-2949-CORE, Issue 1, Section 6.7 for a three foot water test for four hours.

5. The cable of claim 1, wherein the dielectric comprises insulating grade foam polyolefin.

6. The cable of claim 1, wherein the shield comprises shielding tape of aluminum-laminated foil.

7. The cable of claim 1, wherein the cable withstands a cold bend test at −

20°

C. performed pursuant to SCTE IPS-TP001.

8. The cable of claim 1, wherein the inline protector comprises a female connector, and a male connector connected to the female connector and to the first end of the cable.

9. The cable of claim 8, wherein the male connector comprises a BNC-type connector.

10. The cable of claim 1, further comprising a BNC-type connector connecting the inline protector to the cable.

11. The cable of claim 1, wherein the dielectric comprises virgin, unreprocessed material.

12. The cable of claim 1, wherein the cable comprises cable type 734.

13. The cable of claim 1, wherein the cable comprises cable type 735.

14. The cable of claim 1, wherein the conductor comprises copper.

15. The cable of claim 1, wherein the cable comprises cable type 734 and the number of conductors is 1, 3, 6, 9, 12, or 15.

16. The cable of claim 1, wherein the cable comprises cable type 735 and the number of conductors is 1, 3, 6, 9, 12, or 15.

17. A kit comprising:

a length of coaxial cable having at least one end, the cable further comprising a center conductor having a structural return loss of at least 35 db;

a dielectric surrounding the conductor;

a shield surrounding the dielectric, wherein the shield has a braid;

a substantially water-proof insulating jacket surrounding the shield, the jacket having an interior surface; and

dry floodant hydroscopic powder dispersed on the interior surface of the jacket such that substantially all of the dry floodant hydroscopic powder is located between the jacket and the shield; and

an inline protector adapted for connection to the end of the cable.

19. The kit of claim 17, wherein the cable is type 734 or type 735.

18. The kit of clam 17, the kit further comprising a connector to connect the inline protector to the end of the cable.