Muli-layered and colored shingle and method of making same
US6174403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Sep 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for the production of a laminated shingle wherein at least two strips of a continuously advancing sheet are coated with differently colored aggregates of granules. Present among one of the aggregates are a multitude of granules having at least one color and/or hue thereof not present among the granules of the other aggregate or aggregates. The strips are cut from the sheet and laminated one above the other so as to form at least two layers with the differently colored aggregates exposed to view. The difference in coloration creates a pleasing color contrast and accentuates the difference in elevation between the shingle layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.