Lubricating rotary tablet press
US5017122A · kind A · utility
41Cited by
14References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/115
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for carrying out a process for the manufacture of a moulded product by compression of a powder or granules in a die, wherein a powdered die lubricant is used, lubricant particles are electrically charged and the charged particles are fed to the die in advance of the moulding powder is provided. The apparatus includes a first feed for feeding a powdered lubricant to the die, a second feed for feeding powder to the die after the powdered lubricant, and means for maintaining the electrical potential of the die at a predetermined value different from that of the powdered lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.