Molding polytetrafluoroethylene
US4997608A · kind A · utility
6Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Oct 6, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0054
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a workpiece by compacting powder material, includes the steps of applying compression to the material along selected preferably orthogonal axes in compression steps, each compression step causing a volume reduction selected to produce the desired final compaction and orientation of material in the workpiece for that axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.