Method and apparatus for the application of powder material to substrates
US7732020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2005 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | May 1, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/1683
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for electrostatically charging powder material and supplying it to an applicator for electrostatically applying the powder material to solid dosage forms includes a mixer for mixing a sump of the powder material to electrostatically charge the powder material, the mixer including two substantially parallel elongate mixing shafts having oppositely angled mixing paddles thereon and being arranged to rotate in opposite directions; and a feeder for removing the electrostatically charged powder material from the sump and supplying it to the applicator, and a method for electrostatically charging powder material and supplying it to an applicator for electrostatically applying the powder material to solid dosage forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.