Method and apparatus for making a thick-appearing shingle
US6467235B2 · kind B2 · utility
56Cited by
19References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24372
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shingle and a method of and apparatus for making the shingle is provided, whereby patches of preselected granules or combinations of granules are provided, separated by transverse areas of different, preferably darker granules, having slots centrally thereof, to yield the appearance of multi-tab shingles that are thicker than they actually are, with transverse shadow lines. A longitudinal shadow line is optionally provided, along the upper and/or lower portion of the exposed tab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.