US3566664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cold and warm pressing of undercut prepressed bodies
Assignee: F B HATEBUR AG
•
Filing: 1968-06-18
•
Granted: 1971-03-02
•
Expires: 1988-06-18
Abstract
Abstract DEVICE FOR PRESS FORMING WORKPIECES TO FORM PROTUBERANCES THEREON IN WHICH AN ANVIL BODY HAS A MATRIX MEMBER FIXED IN ONE END AND A MOVEABLE MATRIX MEMBER AXIALLY MOVEABLE INTO THE BODY AT THE OTHER END. RADIALLY MOVEABLE JAWS IN THE BODY ARE ACTUATED RADIALLY INWARDLY BY AXIAL MOVEMENT OF THE MOVEABLE MATRIX MEMBER INTO THE BODY SO AS TO EMBRACE A ROD-LIKE WORKPIECE WHICH HAS ONE END DISPOSED IN A HOLE IN EACH MATRIX MEMBER. FURTHER AXIAL MOVEMENT OF THE MOVEABLE MATRIX TAKES PLACE TOGETHER WITH THE JAWS SO THE WORKPIECE IS CAUSED TO CHANGE SHAPE ONLY IN THE UNSUPPORTED REGION THEREOF BETWEEN THE FIXED MATRIX MEMBER AND THE JAWS.
Inventors
- 👤 Herbert Schweizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/76; B21J; B21J13/00; B21J13/02; B21J13/025
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |