Device for powder based additive material manufacturing of dental appliances
US10500020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Feb 24, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/165
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for powder based additive material manufacturing of dental appliances. The device has a recoater (10) for providing a powder layer to a build area. The recoater (10) has a slide (11) and is adapted for dispensing of the powder to the build area. The recoater (10) has further at least two powder supplies for individually supplying a first and a second powder on the slide (11) and a powder transport section in which the first and second powder are brought in touch with each other for at least partially merging. The invention is advantageous in that it allows providing dental blanks having color gradients in all three dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.