Trilaminated roofing shingle

Details Trilaminated roofing shingle Trilaminated roofing shingle

1987-12-21

1989-09-26

Thomas, Alexander S.

Stock material or miscellaneous articles

Sheet facing and longitudinally noncoextensive with web or...

428143, 428192, 52557, 52559, E04D 126

Patent

active

048699420

ABSTRACT:
This invention provides a process and apparatus which automatically and in a continuous and uninterrupted manner laminates a narrow strip of bituminous coated glass mat to the bottom side of a coated glass mat, cuts the laminated product to produce a laminate having cut-out areas between remaining tabs and then adheres thin strips of coated glass mat across the tabs to underlie the tabs and the cut-out areas. The final shingle is made from a single glass mat which is processed into a three level shingle, each level being made of a portion of the original glass mat.

REFERENCES:
patent: 1698891 (1929-01-01), Overbury
patent: 1829886 (1931-11-01), Yates et al.
patent: 3180783 (1965-04-01), Walker et al.
patent: 3998685 (1976-12-01), Czyzewski et al.
patent: 4198257 (1980-04-01), Pfaff
patent: 4233100 (1980-11-01), Cunningham et al.
patent: 4274243 (1981-06-01), Corbin et al.
patent: 4717614 (1988-01-01), Bondoc et al.

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