Apparatus for making an offset laminated roofing shingle
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United States of America Patent
Stats
-
Mar 8, 1988
Grant Date -
N/A
app pub date -
Aug 14, 1986
filing date -
Aug 14, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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