Self-adjusting return line and dip coating solution apparatus including the same
US6884293B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C3/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A diptank applies coating solution to devices that are dipped therein. A reservoir tank contains a reservoir of coating solution. The diptank forms a coating solution overflow return that flows to the reservoir by means of a conduit and a self-adjusting return line. The self-adjusting return line comprises a plastic tubing with an upper portion, a central portion and a lower portion. The upper portion is coupled to the conduit. The tubing central portion is flexible and corrugated and arranged to extend and compress in its length. The lower portion is supported by an attached buoy that floats on the surface of the reservoir. The lower portion defines an outlet that discharges the coating solution overflow return to the reservoir. As a result, the coating solution overflow return is discharged to the reservoir at a fixed vertical distance or level with respect to the surface of the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.