US 5,987,833 A · Vacuum packaged batt

Abstract

A vacuum packaged conformable insulation assembly may be installed in a cavity before the vacuum in the insulation assembly is released. The insulation assembly includes a compressible batt of mineral fibers such as fibrous glass wool. During manufacture, the batt is encased in a gas-impervious envelope. The envelope is vacuum-sealed to retain the batt in a compressed state. The envelope may be provided with opening structures for selectively releasing the vacuum in the envelope. The envelope is sufficiently large to permit the batt contained therein to fully recover when the vacuum is released. According to a method of the present invention, the envelope is placed in a cavity to be insulated, and then the envelope is ruptured to allow the batt to expand to cause the insulation assembly to conform to the cavity.

Claims5

Dependent claims

A vacuum packaged insulation assembly comprising:

a compressed insulation material comprising a mineral fiber batt;
an intact envelope vacuum-sealed about said insulation material whereby said insulation material is held in compression by the vacuum in said envelope, said envelope defining a hole therethrough;
and
a structure fixed to said envelope for selectively rupturing said envelope to discharge the vacuum and thereby enable said insulation material to expand, said structure comprising a portion of said envelope in the form of a strip of non-adhesive tape sealing engaging adhesive material disposed on said envelope about said hole so as to seal said hole.

1 more element

Dependencies are inferred from the claim text.

Vacuum packaged batt

Life of this patent

Vacuum packaged batt

Life of this patent

Abstract

Claims5