Method for electrostatic powder coating of fasteners magnetically suspended from a conveyor
US5476689A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B13/0264
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A continuous, automated method and apparatus for transporting and electrostatically powder coating articles such as fasteners. Articles in an unoriented state are oriented one behind another, transferred in succession to and magnetically retained on a face of a rotating feed wheel at a first position with respect to the feed wheel, transported to a second position by rotation of the feed wheel, transferred in succession at the second position to a respective portion of a moving conveyor, and releasably suspended magnetically and electrically grounded at the respective portion of the conveyor. Magnets used to suspend the articles from the conveyor are shielded from direct contact with the articles to avoid coating the magnets. While the articles remain suspended magnetically from the conveyor by their end portions, they are conveyed through a coating booth where they are electrostatically powder coated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.