Enclosure with sealant for spliced coaxial cables

• US 5,397,859 A
• Filed: 12/10/1993
• Issued: 03/14/1995
• Est. Priority Date: 12/10/1993
• Status: Expired due to Term

• Current Assignee: The Whitaker Corporation (Meggitt PLC)
• Original Assignee: The Whitaker Corporation (Meggitt PLC)
• Inventors: Amazon, Alan J., Robertson, James W., Radliff, David R.
• Primary Examiner(s): NIMMO, MORRIS
• Application Number:
  US08/166,180
• Time in Patent Office: 459 Days
• Field of Search: 174/92, 174/93, 174/84 R, 174/88 R
• US Class Current: 174/92
• CPC Class Codes: H01R 13/585 Grip increasing with strain force
• CPC Class Codes: H01R 4/70 Insulation of connections end caps H01R4/22
• CPC Class Codes: H02G 15/003 Filling materials, e.g. solid or fluid insulation
• CPC Class Codes: H02G 15/113 Boxes split longitudinally in main cable direction
• CPC Class Codes: H02G 15/18 protected by sleeves, e.g. for communication cable two-part covers H02G15/10 ; preforms having internal stresses B29C61/00

Abstract

A cable splice enclosure (10) including a pair of cover members (12,14) joined along a flexible hinge (62,64) and rotatable together about the hinge to enclose a cable splice (150) and secure to each other with latches along both side edges (16,18;92,94). Sealant material (120) disposed within central regions (32,34) of both covers environmentally seals the surfaces of the splice connection (154,158,160) upon full closure. Embossments (44,46) on both sides of the cable-receiving channels (20,22) in associated pairs (40,42,48) proximate the cable exits include resilient flange portions (52,54) cooperate to press into the cable insulation upon full closure to define a strain relief.

Claims

1. An enclosure for a splice connection of a pair of cables, comprising:

first and second cover members, each defining a cable-receiving channel portion coursing between cable exits at opposed end faces and parallel to opposed side edges and through a central region of the respective cover member, and said cover members including complementary mating faces adapted to abut upon closure together of said first and second cover members about a cable splice, and

at least one of said first and second cover members including embossments spaced apart across said cable-receiving channel in at least one associated pair proximate each cable exit and standing vertically from the inside surface of the at least one of said first and second cover members, each said embossment including a resilient flange portion extending inwardly of the proximate cable exit toward said central region of the respective cover member and inwardly into said cable-receiving channel, such that said resilient flange portions of said embossments of each said pair define a spacing less than a cable diameter,

whereby each cable extends from a cable splice positioned in the central regions of the cover members and outwardly between the at least one pair of embossments of each cover member and through an associated cable exit, upon closure of the cover members about the cable splice with their mating faces abuttingly engaging, and the resilient flange portions of the embossments of the at least one pair thereof press into the insulative jacket of the cable and upon relatively outward strain on the cable the resilient flange portions tend to be rotated even more tightly into the cable jacket, defining an effective strain relief.

2. The enclosure as set forth in claim 1 wherein a pair of semicylindrical collars are positioned within said central region of each said cover member for engaging and maintaining the splice connection between the cables centered both axially along said cable-receiving channels and radially within the enclosure, upon full closure of the enclosure about the cable splice.

3. The enclosure as set forth in claim 1 wherein sealant material is disposed within at least said central regions of said first and second cover members, for embedding and environmentally sealing the cable splice upon full closure of the enclosure about the cable splice.

4. The enclosure as set forth in claim 3 wherein each of said first and second cover members includes at least one said pair of embossments between said central region thereof and each said cable exit thereof.

5. The enclosure as set forth in claim 4 wherein one of said first and second cover members includes two said pairs of embossments associated with each said cable exit, with each of said two pairs being staggered axially relative to a single said pair of embossments of the other of said first and second cover members proximate the corresponding cable exit thereof, forming an array of strain relief embossments along each cable associated with each cable exit.

6. The enclosure as set forth in claim 4 wherein a deflectable dam is disposed transversely across said cable-receiving channel of each said cover member between said embossments of said at least one pair spaced from said associated end wall, maintaining said sealant material within said central region and being deflectable by a said cable upon full closure of the enclosure about the cable splice.

7. The enclosure as set forth in claim 1 wherein said first and second cover members are molded of resilient material in a single piece, joined to each other along adjacent ones of said side edges by a flexible living hinge portion, and include integral complementary latching members at least along remote ones of said side edges that are engageable upon closure of the cover members about the cable splice, thus fully securing together at said mating faces without other fastening means.

8. The enclosure as set forth in claim 7 wherein said first and second cover members include integral complementary latching members along said adjacent ones of said side edges.

9. The enclosure as set forth in claim 8 wherein said first and second cover members include upstanding wall portions and complementary wall-receiving regions along said opposed side edges inwardly of said complementary latching members, each said upstanding wall portion having a leading end adapted to bear against a complementary surface of a said complementary wall-receiving region during closure of said first and second cover members, bounding at least the central region of said cover members for retention of sealant material within the central region.