Method for lining with powder
US5776273A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1995 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Oct 16, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D1/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An object, such as a container cover, is lined on a predefined area of the object by depositing powder on the predefined area. The lining material is formed into a non-spherical powder having a resting angle of 40 degrees or greater. The powder is deposited by fluidizing the powder in a feeder using vibration and conveying the powder through a nozzle to the predefined area. The powder layer deposited on the object is pressed with a molding element to form a lining layer having the predefined shape. The lining thus formed has a predefined thickness distribution and shape with good tightening and sealing properties and corrosion resistance. In addition, no environmentally unsafe processes are required for the precise deposition of powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.