Composite cable for fiber-to-the-curb architecture using centralized power

• US 5,745,627 A
• Filed: 12/28/1995
• Issued: 04/28/1998
• Est. Priority Date: 12/28/1995
• Status: Expired due to Term

• Current Assignee: Furukawa Electric North America Incorporated (Furukawa Electric Company Limited)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Knight, Richard Lee, Arroyo, Candido John
• Primary Examiner(s): SOUGH, HYUNG SUB
• Application Number:
  US08/583,145
• Time in Patent Office: 852 Days
• Field of Search: 174/70 A, 174/121 A, 385/100, 385/101, 385/102, 385/103
• US Class Current: 385/101
• CPC Class Codes: G02B 6/4415 Cables for special applications G02B6/4429, G02B6/4439, G02B6/4479 take precedence
• CPC Class Codes: G02B 6/4416 Heterogeneous cables
• CPC Class Codes: G02B 6/44384 the means comprising water blocking or hydrophobic materials G02B6/4439, G02B6/4479 take precedence
• CPC Class Codes: H01B 11/1891 comprising auxiliary conductors

Abstract

A composite distribution cable for connection to a customer'"'"'s premises has a fiber optic cable, twisted voice band pairs, copper power cables, and a coaxial cable within a common sheath. Water blocking members within the cable fill the voids between the conducting members and the sheath upon contact with water or other liquid.

Claims

1. A composite communication cable having a longitudinal axis, comprising:

a longitudinally extending core member comprising a metallic conductor member encased within a dielectric member;

a second conductor member surrounding said core member and forming a coaxial cable along with said core member for transmitting broad band signals;

a jacket of insulating material surrounding said core member and second conductor member, said jacket being spaced from said core member.

first and second insulated electrical power conducting members disposed substantially adjacent each other and extending along one side of said cable axis spaced therefrom and between said core member and said jacket;

a twisted pair of individually insulated narrow band signal conductors disposed between said core member and said jacket on the oposite side of the cable axis from said power conducting members and extending longitudinally along said cable axis; and

a fiber optic cable extending longitudinally along said cable axis and between said core member and said jacket.

2. A composite cable as claimed in claim 1 and further comprising means for preventing the flow of water into and through at least a portion of the space between said core member and said jacket.

3. A composite cable as claimed in claim 2, wherein said water flow prevention means comprises one or more discrete super-absorbent members located in the space between said core member and said jacket and extending along the length of said cable.

4. A composite cable as claimed in claim 1, wherein said second conductor comprises a metallic sheath surrounding said dielectric member in contact therewith and wherein said electrical power conducting members, twisted pair, and fiber optic cable are situated in the space between said metallic sheath and said jacket.

5. A composite cable as claimed in claim 1 further comprising a third conductor member comprising a metallic shield surrounding said second conductor member and spaced therefrom so as to create a space within which the electrical power conducting members, twisted pair, and fiber optic cable are situated.