Wraparound splice case

• US 4,282,397 A
• Filed: 11/05/1979
• Issued: 08/04/1981
• Est. Priority Date: 11/05/1979
• Status: Expired due to Term

• Current Assignee: Raychem Limited (TE Connectivity Limited)
• Original Assignee: Raychem Limited (TE Connectivity Limited)
• Inventors: Fritsche, Joel L., Siedenburg, Juergen
• Primary Examiner(s): Envall, Jr., Roy N.
• Application Number:
  US06/091,344
• Time in Patent Office: 638 Days
• Field of Search: 174/92, 174/DIG. 8, 174/DIG. 11, 174/91, 174/93, 428/36
• US Class Current: 174/92
• CPC Class Codes: B29C 61/10 by bending plates or sheets in general B29C53/36
• CPC Class Codes: G02B 6/4476 with heat-shrinkable elements
• CPC Class Codes: H02G 15/1813 Wraparound or slotted sleeves
• CPC Class Codes: Y10T 428/1328 Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
• CPC Class Codes: Y10T 428/1355 Elemental metal containing [e.g., substrate, foil, film, coating, etc.]

Abstract

A wraparound cable splice case comprises a hollow, relatively rigid, cylindrical shell having at least one longitudinal split along its length and a plastic sheet bonded to its outer surface. A closure member comprises an extension of the plastic sheet extending beyond one of the longitudinal edges along the split. The splice case can be opened along the longitudinal split, wrapped around a cable splice, then closed to encircle the splice. The closure member is coated on its inner surface with a heat activatable adhesive so that when the case is closed around the splice and heat is applied, the adhesive bonds the closure member to the plastic sheet covering the shell. The splice case is particularly suitable for protecting a splice in armored power cable.

Claims

1. A splice case comprising:

(a) a hollow cylindrical shell of a relatively rigid material, said shell having an internal diameter sufficient to encircle a cable splice; and

having at least one longitudinal split extending along the length thereof so that the shell can be opened to be placed about a cable splice and then closed to completely encircle the cable splice;

(b) a sheet of plastic material bonded to the outer surface of said shell; and

(c) a closure member which comprises an extension of said plastic sheet extending from one of the edges of said shell along said longitudinal split, said closure member being coated on the inner surface thereof with a heat activatable adhesive so that when the shell is placed about a cable splice and the closure member is placed in contact with said plastic material covering said shell and heated, the adhesive bonds the closure member to the plastic material, thereby forming a protective splice case.

2. A splice case in accordance with claim 1 wherein said shell comprises two half-cylinders having two pairs of interlocking longitudinal edges.

3. A splice case in accordance with claim 2 wherein said half-cylinders are of metal.

4. A splice case in accordance with claim 3 wherein said half-cylinders are of galvanized steel.

5. A splice case in accordance with claim 2 wherein said shell is provided with a plurality of spaced apart prongs extending longitudinally from the ends of said shell.

6. A splice case in accordance with claim 5 wherein the splice case further comprises two heat shrinkable sleeves coated on the internal surface thereof with adhesive so that when said sleeves are positioned over the prongs and the adjacent sections of said splice case and underlying cable and heat is applied, the sleeves shrink down over the prongs, sealing said sleeves to said splice case, prongs and cable.

7. A splice case in accordance with claim 1 wherein said sheet of plastic material is heat shrinkable.

8. A splice case in accordance with claim 1 wherein said sheet of plastic material is composed of crosslinked polyethylene.

9. A splice case comprising:

(a) a hollow cylindrical shell of a relatively rigid material, said shell having an internal diameter sufficient to encircle a cable splice; and

having at least one longitudinal split extending along the length thereof so that the shell can be opened to be placed about a cable splice and then closed to completely encircle the cable splice;

(b) a sheet of heat sealable plastic material bonded to the outer surface of said shell; and

(c) a closure member which comprises an extension of said plastic sheet extending from one of the edges of said shell along said longitudinal split, said closure member being heat sealable so that when the shell is placed about a cable splice and the closure member is placed in contact with said plastic material covering said shell and heated, the closure member is bonded to the plastic material, thereby forming a protective splice case.