US3608151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold coupling for sole injecting machines
Assignee: New England Merchants National Bank
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Filing: 1969-07-28
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Granted: 1971-09-28
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Expires: 1989-07-28
Abstract
Abstract A SHOE BOTTOMING MACHINE HAVING A DIVIDED MOLD RING WITH INTERFACE GROOVES BETWEEN ITS HALVES TO FORM AN INJECTING SPRUE, SO ARRANGED THAT A BLOCK ON A PLASTICIZING PUMP FOR FORCING ELASTOMER INTO THE MOLD RING IS RELEASABLY ENGAGED TO FORM A COUPLING WITH KEYS ON THE MOLD RING HALVES WHENEVER THEY ARE BROUGH TOGETHER TO FORM A MOLDING CAVITY. THE KEYS ARE SUPPORTED ON PARTS OF A TWO-PART CARRIER AND THE BLOCK IS CONNECTED THROUGH A DISTRIBUTING MANIFOLD BETWEEN THE PUMP AND THE BLOCK IN A MANNER TO ENABLE RELEASE OF A SPRUE PLUG WHILE ATTACHED TO A MOLDED SHOE BOTTOM FROM THE MOLD RING WHEN THE MOLD RING PARTS ARE SEPARATED.
Inventors
- 👤 Oscar H Cloutier
- 👤 Ernest F Huber Jr
- 👤 Wallace W Ingves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:08
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/0009; B29D35/0018; A; A43; A43B; A43B1/00; A43B1/0027; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/27; B29C45/2725; B29C45/38
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |