Method of making an offset laminated roofing shingle

Details Method of making an offset laminated roofing shingle Method of making an offset laminated roofing shingle

1987-12-21

1988-10-04

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156264, 156512, B32B 3118

Patent

active

047754400

ABSTRACT:
This invention provides a process and apparatus which automatically and in a continuous and uninterruped 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: 1829886 (1931-11-01), Yates 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.

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