Powder coating apparatus and method
US6322628A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G47/5195
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A powder coating apparatus and method feeds fine powdered coating material such as thermoplastic type material to a succession of discrete articles passing by the apparatus which includes a vibratory feeder bowl and a spiral track for delivering a substantially constant supply of powder coating material to the articles. A sensor is also used to regulate an amount of powdered coating material supplied to an auger to the vibratory feeder. The invention also provides a powder feed system that deposits an excess of powdered coating material than that required to form the coating and provides for recirculation of the powder not ultimately used to form the coating back to the powder feeding apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.