Cable assembly for undercarpet signal transmission

• US 4,404,425 A
• Filed: 12/05/1980
• Issued: 09/13/1983
• Est. Priority Date: 12/05/1980
• Status: Expired due to Term

• Current Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Original Assignee: Thomas & Betts Corporation (ABB Limited)
• Inventors: Rich, Donald S.
• Primary Examiner(s): Askin, Laramie E.
• Application Number:
  US06/213,311
• Time in Patent Office: 1,012 Days
• Field of Search: 174/10, 174/68 R, 174/68 C, 174/70 C, 174/72 C, 174/97, 174/103, 174/104, 174/107, 174/115, 174/117 R, 174/117 A, 174/117 F
• US Class Current: 174/107
• CPC Class Codes: H01B 11/203 forming a flat arrangement
• CPC Class Codes: H01B 7/0823 Parallel wires, incorporated in a flat insulating profile
• CPC Class Codes: H01B 7/40 with arrangements for facilitating mounting or securing
• CPC Class Codes: H02G 3/0487 with a non-circular cross-section H02G3/0468, H02G3/0475 take precedence

Abstract

An undercarpet cable assembly for use in signal transmission systems has a coaxial cable subassembly retained by but strippable from an abrasion-protective and crush-resistant resilient retention body. Stripping is facilitated by an unbonded relation between the subassembly and the retention body.

Claims

1. An electrical cable assembly comprising:

(a) a coaxial cable subassembly including a central electrical conductor, an electrical insulator concentric with said central conductor and an electrically conductive sheath encircling said insulator; and

(b) a resilient body of electrically insulative material contiguously engaging said sheath over at least a major part of the circumference of said sheath and imposing radial retentive force upon said subassembly, said body having a first expanse in one direction radially outwardly of said subassembly along an axis intersecting said central conductor less than a second expanse of said body radially outwardly of said subassembly along said axis in a direction opposite said one direction, said body having a pair of opposed, manually deflectable sidewalls extending laterally outwardly of said axis, said first expanse defining a thin, rupturable retention film extending continuously with said sidewalls, said second expanse defining a deformable wall continuous with said sidewalls and about which said sidewalls are deflectable, said sidewalls being adapted to apply sufficient force to said thin retention film to rupture same upon manually deflecting said sidewalls about said deformable wall, whereby said coaxial cable subassembly may be released from said body through said ruptured film.

2. The cable assembly claimed in claim 1 wherein said body includes said insulative material in both said first and second expanses thereof.

3. The cable assembly claimed in claim 2 wherein said body is upstanding, defining a ceiling and a base vertically opposite said ceiling, both said base and said ceiling being intersected by said axis, said opposed sidewalls tapering downwardly outwardly from said ceiling to said base.

4. The cable assembly claimed in claim 3 further including an electrically insulative covering upon the exterior of said body, said covering being in adhered relation to said ceiling and said sidewalls and in non-adhering relation to said base.

5. The cable assembly claimed in claim 4 wherein said covering is comprised of first and second sheets, said first sheet being in adhered relation to said ceiling and said sidewalls and having ends extending beyond said sidewalls, said second sheet being in facing relation to said base and having ends extending therebeyond and in adhered relation with said ends of said first sheet.

6. The cable assembly claimed in claim 2 wherein said major part of said sheath circumference comprises the entire circumferential expanse of said sheath.

7. The cable assembly claimed in claim 6 wherein said entire circumferential expanse of said sheath is in non-adhered relation to said body.

8. The cable assembly claimed in claim 7 wherein said subassembly further includes a drain wire interiorly of said sheath.

9. The cable assembly claimed in claim 6 wherein said entire circumferential expanse of said sheath is in adhered relation to said body, said sheath being shearable to permit removal of said central conductor and said insulator therefrom.

10. The cable assembly claimed in claim 1 wherein said first expanse of said body is translucent, said subassembly being discernible through said first expanse.

11. The cable assembly claimed in claim 1 wherein said body comprises an extruded member.

12. The cable assembly claimed in claim 1 wherein said body and said sheath are comprised of materials mutually non-adherent.

13. The cable assembly claimed in claim 12 wherein said body comprises an extruded member.

14. The cable assembly claimed in claim 13 wherein said body is comprised of polyvinyl chloride.

15. The cable assembly claimed in claim 14 wherein said sheath is comprised of a polyester resin.

16. The cable assembly claimed in claim 15 wherein said sheath is comprised of aluminized polyester resin.