Method for extruding a coating upon a substrate surface
US7374795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Nov 26, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C11/1042
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coating method is disclosed that applies a coating to a product in a uniform and controlled manner. The coating method comprises a feeding step, an optional pre-treatment step, at least one coating step, and a finishing step. The coating step(s) comprise the use of a coating material feeder and a coating device. During the coating step(s), a substrate passes through an aperture in the coating device which, includes first and second shell portions, where the first shell portion has a concave surface surrounding the aperture portion. The second shell has a substantially flat face and a mirror aperture that aligns with the aperture of the first shell. The concave surface of the first shell and a groove formed along the perimeter of the aperture collect coating material for coating the object as it passes through the apertures of both shells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.