Multi-layered shingle and method of making same
US6679308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Dec 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2438
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An apparatus is provided for the continuous manufacture of shingles, for producing a plurality of laminated shingles. The apparatus includes a means for continuously advancing a fibrous sheet, a means for waterproofing the sheet, a means for adhering granules to an upper surface of the sheet, and a means for cutting and separating from the sheet at least three indefinitely long strips to form a wide elongate strip and two or more narrower elongate strips, a means for positioning and adhering one of the narrower strips beneath and upon the wide sheet with longitudinally aligned center lines and a means for positioning and adhering a second of the narrower strips beneath and upon the first narrower strip, with aligned center lines, with the second narrower strip below the first narrower strip, optional means for positioning and adhering other narrower strips underneath and upon the last previously adhered narrower strip with aligned center lines, to make a multi-layered composite section of adhered narrower strips and the wide strip. Means are also provided for making an elongate cut across and generally along the center line to form a repeated pattern of interdigitated multi-layered…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.