Vibratory mill and method of use for low contamination grinding
US5979805A · kind A · utility
8Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Dec 4, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C17/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a vibratory mill having a grinding chamber, preferably coated with an abrasion resistant polymer, the grinding chamber being charged with glass beads having a diameter in the range of about 0.1 mm to about 10.00 mm. There is further provided a method of using this mill to provide substantially pure ground dental filler particles having an average particle size less than the average wavelength of visible light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.