Telecommunications pedestal closure with environmental control liner

• US 4,982,054 A
• Filed: 10/06/1988
• Issued: 01/01/1991
• Est. Priority Date: 10/06/1988
• Status: Expired due to Term

• Current Assignee: Tyco Electronics Corporation (TE Connectivity Limited)
• Original Assignee: Raychem Corporation (TE Connectivity Limited)
• Inventors: Horan, Mike, De Bruycker, Erwin, Bierlein, Eric, Cook, Floyd
• Primary Examiner(s): NIMMO, MORRIS
• Application Number:
  US07/254,334
• Time in Patent Office: 817 Days
• Field of Search: 174/87, 174/74 A, 174/77 R, 156/49
• US Class Current: 174/87
• CPC Class Codes: H02G 15/013 Sealing means for cable inlets inlets for cables filled with, or surrounded by, gas or oil H02G15/32
• CPC Class Codes: H02G 15/076 for multi-conductor cables

Abstract

The invention provides for a reusable telecommunications pedestal closure containing a water and oxygen impervious liner to minimize the oxygen and water degradation effects on the fine copper wires contained in a telecommunications splice between at least two telecommunications cables.

Claims

1. A telecommunications pedestal closure comprising:

a reusable molded cap containing an environmental oxygen and water barrier liner adhered therein;

sealing means for substantially permanently sealing the cable portions of a cable splice together having a cable splice there between, said sealing means capable of forming a resealable seal to the environmental oxygen and water barrier liner, said sealing means is within the reusable cap and liner;

resealable sealing means for forming a seal between the environmental liner and the sealing means for sealing the cable portions of a splice together; and

base means for sealing the reusable cap thereto.

2. The apparatus according to claim 1 wherein the sealing means for sealing the two cables together is mastic having foam faces to preclude the flow thereof into the splice region or out of the base means.

3. The apparatus according to claim 2 further comprising a mastic tape having a non-adhesive backing, the mastic portion in contact with the mastic which contacts the cables and the non-adhesive backing in contact with a resealable sealing means for forming a seal between the non-adhesive backing and the environmental liner.

4. The apparatus according to claim 3 wherein the resealable sealing means is a gel maintained under compression by a pressure maintaining means for maintaining the gel under compression and in contact with the non-adhesive backing and the environmental liner.

5. The apparatus according to claim 4 wherein the environmental liner is a plastic metal laminate bag.

6. The apparatus according to claim 5 wherein the pressure maintaining means is a non-adhesive polyvinyl chloride tape.

7. A method of environmentally sealing a telecommunications cable within a reenterable telecommunications pedestal comprising:

providing substantially permanent sealing means on adjacent portions of a cable having a splice therebetween;

contacting the substantially permanent sealing means with a non-adhesive but substantially oxygen and water impervious material;

removably sealing an oxygen and water impervious bag to the non-adhesive material with a gel under pressure; and

pressuring the oxygen and water barrier having the gel therebetween.

8. The method according to claim 7 wherein the substantially permanent sealing means is a mastic and the oxygen and water impervious bag is a metal plastic laminate bag.

9. The method according to claim 8 wherein the removably sealing gel is a gel selected from the group consisting of a silicone gel, a kraton gel, a urethane gel, or mixtures thereof.

10. A telecommunications pedestal kit-of-parts for a telecommunications splice comprising:

a reusable molded cap containing a water/oxygen impervious liner therein;

a sealant core piece capable of sealing two spliced cables;

a sealant strip capable of wrapping around the sealing core piece and providing a non-adhesive surface capable of contacting a gel seal contained on the surface of said liner; and

an end piece capable of sealing the major portions of the cable below the reusable molded cap.

11. The kit according to claim 10 wherein the sealant core piece comprises a mastic core piece capable of sealing a plurality of cables.

12. The kit according to claim 11 further comprising a non-adhesive pressure maintaining tape.