Process for encapsulating glass fiber insulation
AssigneeCertainTeed Corporation
InventorsKenneth D. Knapp, Christopher R. Donnelly, Hal J. Robbins
Life of this patent
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Abstract
Encapsulated glass fiber insulation is made by forming a covering material over the top surface of a mineral fiber core, with the formed covering material extending adjacent the side surfaces. The covering material is greater in width than the sum of the widths of the top and two side surfaces, so that the edges of the formed covering material extend beyond the mineral fiber core. A vacuum is applied below the mineral fiber core to draw the formed covering material extending beyond the side surfaces under the core.
Claims8
A process for encapsulating compressible mineral fiber insulation, the process comprising:
- a) providing a longitudinally extending mineral fiber core having opposed major, top and bottom surfaces, and opposed side surfaces;
- b) forming a covering material over the top surface, the formed covering material extending adjacent the width than the sum of thing material being greater in width than the sum of the widths of the top and two side surfaces, the edges of the formed covering material extending below the side surfaces;
- c) providing a vacuum under the mineral fiber core to draw the formed covering material extending below the side surfaces, including the edges of the covering material, under the core and adjacent the bottom major surface.
A process for encapsulating compressible mineral fiber insulation, the process comprising:
- a) providing a continuously moving longitudinally extending mineral fiber core having opposed major, top and bottom surfaces, and opposed side surfaces;
- b) forming a continuous web of covering material over the top surface, the formed covering material extending adjacent the side surfaces, the covering material being greater in width than the sum of the widths of the top and two side surfaces, the edges of the formed covering material extending below the side surfaces, the continuous web being formed using a web former;
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- c) providing a vacuum under the mineral fiber core to draw the formed covering material extending below the side surfaces, including the edges of the covering material, under the core and adjacent the bottom major surface.
A process for encapsulating compressible mineral fiber insulation, the process comprising:
- a) providing a continuous moving longitudinally extending mineral fiber core having opposed major, top and bottom surfaces, and opposed side surfaces;
- b) forming a continuous web of covering material over the top surface, the formed covering material extending adjacent the side surfaces, the covering material being greater in width than the sum of the widths of the top and two side surfaces, the edges of the formed covering material extending below the side surfaces, the continuous web being formed using a web former;
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- c) providing a vacuum under the mineral fiber core to draw the formed covering material extending below the side surfaces, including the edges of the covering material, under the core and adjacent the bottom major surface, the top and side surfaces of the covering material being pulled by a vacuum towards the core to conform to the shape of the core.
Dependencies are inferred from the claim text.