Method and apparatus for applying a powdered resin to fasteners
US6648970B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jun 24, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to an improved method and apparatus for the application of powdered resins to threaded fasteners. In accordance with the present invention, the powdered resin handling system used to apply, collect, recycle and make-up the resin is generally enclosed; that is, with the exception of the application of the resin to the fasteners, the resin is generally maintained within conduit, housings or hoppers that are not open to the surroundings. This tends to minimize discharge of resin into the areas surrounding the fastener processing equipment and also isolates the resin from external environmental conditions that tend to degrade the resin over time. In addition, the present invention introduces fresh, new or make-up resin in a manner that assures intimate and thorough intermixing of the new and recycled resin while minimizing the cost and complexity of the equipment employed for that purpose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.