US3551946A
Expired / Lapsed
US
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Method and apparatus for compacting isostatically metal particles into solid form
Assignee: WAH CHANG ALBANY CORP
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Filing: 1968-08-26
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Granted: 1971-01-05
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Expires: 1988-08-26
Abstract
Abstract Metal particles are confined in a tube of ductile material capable of collapsing against the particle butyl of resisting penetration by the particles. The tube is encased in a buffer material capable of compression through its thickness, and the buffer material is enclosed in a liquid-impervious, flexible container. The assembly is evacuated an immersed in a liquid, and the liquid then is pressurized to collapse the assembly and compact the particles into coherent, solid form.
Inventors
- 👤 Leo E Backer
- 👤 Daniel G Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/001; B22; B22F; B22F3/00; B22F3/02; B22F3/04; B30B11/002; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49751; Y10T29/49753
Claims Analysis
Total Claims: 0
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References 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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |