US3555865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forging apparatus and method
Assignee: Individual
•
Filing: 1967-04-17
•
Granted: 1971-01-19
•
Expires: 1987-04-17
Abstract
Abstract IN FORGING MATERIALS BETWEEN A MOVABLE RAM AND A DIE ASSEMBLY ON AN ANVIL, PROVIDING A CONTINUOUS LOAD ABSORBING HYDRODYNAMIC LIQUID FILM BETWEEN THE DIE ASSEMBLY AND THE ANVIL TO REDUCE DETRIMENTAL STRESS CONDITIONS. DETECTING MISALIGNMENT OF THE RAM BY PHOTOCELL SENSING MEANS AND CONTROLLING A HYDRAULIC CYLINDER WHICH SLIDABLY ADJUSTS THE POSITION OF THE DIE ASSEMBLY ON THE ANVIL INTO ALIGNMENT WITH THE RAM.
Inventors
- 👤 Edmund J Sebastian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:10
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/06; B21J7/00; B21J7/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |