Method of manufacturing rods or tubes from powder
Abstract
Abstract In hydrostatic compression of powder, the powder is enclosed in a capsule of yielding material having an opening therein. Adjacent the opening there is a portion of enlarged cross section connected to the adjacent portion of the main body of a capsule by a transverse member which is a plane substantially perpendicular to the axis of the opening. The opening is closed by a lid having a main body portion overlying the opening and sloping walls, the upper end of the lid being of substantially the same cross section as the enlarged part of the capsule. Upon subjecting the capsule filled with powder to hydrostatic compression, the powder and the main body are compressed while the wall of the enlarged section is pressed inwardly against the sloping wall of the lid.
Inventors
- 👤 Sven-Erik Isaksson
Bibliographic Details
Claims Analysis
Total Claims: 1References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |