US3563075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for hydrostatic extrusion of rods and tubular and profiled articles
Assignee: INST FIZ METALLOV
•
Filing: 1968-01-05
•
Granted: 1971-02-16
•
Expires: 1988-01-05
Abstract
Abstract EXTRUSION APPARATUS COMPRISES A FRAME CARRYING A CONTAINER HAVING A CHAMBER IN WHICH A BLANK CAN BE INSERTED AND HYDROSTATIC FLUID PRESSURE CAN BE DEVELOPED TO EXTRUDE THE BLANK THROUGH A DIE WHICH IS POSITIONABLE AGAINST THE CONTAINER. THE DIE IS PRESSED AGAINST THE CONTAINER BY A HYDRAULIC DRIVE WHICH IS DISPLACEABLE BOTH LONGITUDINALLY AND TRANSVERSELY OF THE CHAMBER. IN THE COURSE OF EXTRUSION, A LOCKING DEVICE COUPLES THE HYDRAULIC DRIVE AND THE CONTAINER VIA THE FRAME. THE PISTON OF THE HYDRAULIC DRIVE HAS A BORE THROUGH WHICH THE EXTRUDED ARTICLE MAY PASS DURING THE EXTRUSION OPERATION.
Inventors
- 👤 Boris Ivanovich Beresnev
- 👤 Evgeny Dmitrievich Martynov
- 👤 Mikhail Vasilievich Maltsev
- 👤 Georgy Pavlovich Britnev
- 👤 Anatoly Vasilievich Kocherov
- 👤 Konstantin Ivanovich Ezersky
- 👤 Vladimir Ivanovich Monakhov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/007
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |