US3587138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mould-closing device
Assignee: Schloemann AG
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Filing: 1968-07-25
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Granted: 1971-06-28
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Expires: 1988-07-25
Abstract
Abstract A MOULD-CLOSING DEVICE IN THE FORM OF A FOUR-COLUMN HYDRAULIC PRESS, FOR INJECTION MOULDING MACHINES FOR MOULDING SYNTHETIC SUBSTANCES, HAVING A STATIONARY MOULD-CARRYING PLATE, AND A MOVABLE MOULD-CARRYING PLATE CAPABLE OF SLIDING ALONG THE COLUMN OF THE PRESS AND OF BEING LOCKED IN POSITION THEREON, THE MOVABLE MOULD-CARRYING PLATE BEING IN THE FORM OF A CYLINDER SLIDABLE UPON A PRESS PLUNGER, WHICH IS CONNECTED WITH A SUPPORTING COLUMN, THIS SUPPORTING COLUMN BEING PROVIDED, AT THE END REJOTE FROM THE MOULD-CARRYING PLATES, WITH ANNULAR GROOVES, IN WHICH THERE ENGAGE LOCKING JAWS, WHICH ABUT ON A STATIONARY CROSSHEAD.
Inventors
- 👤 Wilhelm Bammert
- 👤 Hans-Peter Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:58
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/64; B29C45/67; B29C45/6707; B29C45/6714; Y; Y10; Y10S; Y10S425/00; Y10S425/223
Claims Analysis
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |