Segmented, encapsulated insulation assembly

• US 5,765,318 A
• Filed: 02/06/1997
• Issued: 06/16/1998
• Est. Priority Date: 02/06/1997
• Status: Expired due to Term

• Current Assignee: Johns Manville International, Inc. (Berkshire Hathaway Incorporated)
• Original Assignee: Johns Manville International, Inc. (Berkshire Hathaway Incorporated)
• Inventors: Michelsen, Theodore W.
• Primary Examiner(s): Canfield, Robert
• Application Number:
  US08/796,826
• Time in Patent Office: 495 Days
• Field of Search: 52/98-100, 52/406.1, 52/406.2, 52/309.9, 52/309.14, 428/43, 428/74, 428/77
• US Class Current: 52/98
• CPC Class Codes: E04B 1/7662 comprising fiber blankets or batts
• CPC Class Codes: E04B 1/78 Heat insulating elements E04B1/7662 takes precedence
• CPC Class Codes: E04C 2/246 combinations of materials fully covered by E04C2/16 and E04C2/20
• CPC Class Codes: Y10T 428/15 Sheet, web, or layer weakened to permit separation through thickness
• CPC Class Codes: Y10T 428/237 Noninterengaged fibered material encased [e.g., mat, batt, etc.]

Abstract

A segmented, encapsulated insulation assembly preferably includes a blanket of fibrous insulation having a plurality of longitudinally spaced apart, transversely extending cuts therein. The cuts divide the fibrous insulation into segments and weaken the fibrous insulation to permit the fibrous insulation to be selectively separated at any of the cuts. The fibrous insulation is encapsulated within an envelope having weakened transverse tear lines that divide the envelope into envelope segments. The transverse tear lines in the envelope overlay the cuts in the fibrous insulation to permit the envelope to be separated at the cuts thereby forming a plurality of encapsulated fibrous insulation modules. One or more of the encapsulated fibrous insulation modules can be selectively separated from the segmented, encapsulated fibrous insulation assembly to form an insulation panel of a desired length to insulate a cavity. Preferably, the surfaces of the fibrous insulation cuts are treated with a dust suppressant to reduce or prevent dust and/or fiber release from these surfaces.

Claims

1. A segmented, encapsulated insulation assembly comprising:

an insulation material having a length, a width and a thickness;

said insulation material having a plurality of longitudinally spaced apart, transversely extending cuts therein, dividing said insulation material into insulation segments and weakening said insulation material to facilitate separation of said insulation material at said cuts; and

said insulation material being encapsulated within an envelope;

said envelope having weakened transverse tear lines that divide said envelope into envelope segments and overlay said cuts to permit said envelope to be separated at said cuts whereby one or more of said insulation segments, encapsulated in said envelope segments, can be separated from said segmented, encapsulated insulation assembly;

wherein said transversely extending cuts extend for the entire width of said insulation material and for substantially the entire thickness of said insulation material leaving adjacent insulation segments joined by a portion of said insulation material adjacent a major surface of said insulation material.

2. The segmented, encapsulated insulation assembly according to claim 1, wherein:

surfaces of said transversely extending cuts have a dust suppressant thereon.

3. The segmented, encapsulated insulation assembly according to claim 2, wherein:

said weakened transverse tear lines are perforated lines.

4. The segmented, encapsulated insulation assembly according to claim 3, wherein said insulation segments and said envelope segments range from about six to about sixteen inches long.

5. The segmented, encapsulated insulation assembly according to claim 4, wherein:

said insulation material is a fibrous insulation material.

6. The segmented, encapsulated insulation assembly according to claim 5, wherein:

said dust suppressant is present substantially throughout said fibrous insulation material.

7. The segmented, encapsulated insulation assembly according to claim 4, wherein:

said insulation material is a foam insulation material.

8. A segmented, encapsulated fibrous insulation assembly comprising:

a compressible and resilient blanket of fibrous insulation having a length, a width and a thickness;

said blanket having a plurality of longitudinally spaced apart, transversely extending cuts therein, dividing said blanket into blanket segments and weakening said blanket to facilitate separation of said blanket at said cuts; and

said blanket being encapsulated within a pliable envelope;

said envelope having weakened transverse tear lines that divide said envelope into envelope segments and overlay said cuts to permit said envelope to be separated at said cuts whereby one or more of said blanket segments encapsulated in said envelope segments can be separated from said segmented, encapsulated fibrous insulation;

wherein said transversely extending cuts extend for the entire width of said blanket and for substantially the entire thickness of said blanket leaving adjacent blanket segments joined by a blanket portion adjacent a major surface of said blanket.

9. The segmented, encapsulated fibrous insulation assembly according to claim 8, wherein:

surfaces of said transversely extending cuts have a dust suppressant thereon.

10. The segmented, encapsulated fibrous insulation assembly according to claim 9, wherein:

said dust suppressant is present substantially throughout said fibrous insulation.

11. The segmented, encapsulated fibrous insulation assembly according to claim 9, wherein:

said weakened transverse tear lines are perforated lines.

12. The segmented, encapsulated fibrous insulation assembly according to claim 11, wherein said blanket segments and said envelope segments range from about six to about sixteen inches long.

13. The segmented, encapsulated fibrous insulation assembly according to claim 8, wherein said blanket segments and said envelope segments range from about six to about sixteen inches long.

14. The segmented, encapsulated fibrous insulation assembly according to claim 8, wherein:

said transversely extending cuts extend for the entire width of said blanket and for substantially the entire thickness of said blanket leaving adjacent blanket segments joined at said transversely extending cuts by transversely spaced apart blanket portions located adjacent one major surface of said blanket.

15. The segmented, encapsulated fibrous insulation assembly according to claim 8, wherein:

said envelope is a polymeric film and said weakened transverse tear lines are perforated lines.

16. The segmented, encapsulated fibrous insulation assembly according to claim 8, wherein:

said fibrous blanket comprises glass fibers.

17. The segmented, encapsulated fibrous insulation assembly according to claim 16, wherein:

said fibrous blanket is a bonded fibrous blanket.

18. The segmented, encapsulated fibrous insulation assembly according to claim 17, wherein:

surfaces of said transversely extending cuts have a dust suppressant thereon.

19. The segmented, encapsulated fibrous insulation assembly according to claim 18, wherein:

said dust suppressant is present substantially throughout said fibrous insulation.

20. The segmented, encapsulated fibrous insulation assembly according to claim 16, wherein:

said fibrous blanket is an unbonded fibrous blanket.

21. The segmented, encapsulated fibrous insulation assembly according to claim 20, wherein:

surfaces of said transversely extending cuts have a dust suppressant thereon.

22. The segmented, encapsulated fibrous insulation assembly according to claim 21, wherein:

said dust suppressant is present substantially throughout said fibrous insulation.