Manufacture of building products
US5772939A · kind A · utility
2Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B15/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing concrete roof tiles having the appearance of shake by providing the leading edges of successive tiles with a randomly shaped leading edge. The method comprises forming a ribbon of mortar on a series of tile forming pallets; and effecting rupture of the ribbon at joints between successive pallets by causing a leading pallet to accelerate away from the remaining pallets to create a gap therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.