Patent US3433450A successfully refreshed from Google Patents.
US3433450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector and mold plate attachment for plastic molding machines
Assignee: ROBERT F BRUNNER
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Filing: 1966-12-12
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Granted: 1969-03-18
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Expires: 1986-12-12
Abstract
No abstract record available.
Inventors
- 👤 Robert F Brunner
- 👤 Wayne O Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:22
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; B29C45/4005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
AN ATTACHMENT FOR CLAMPING A CAVITY DIE BLOCK TO THE PLATEN OF A MOLDING MACHINE HAVING A RELATIVELY MOVABLE EJECTOR PIN ASSOCIATED THEREWITH; THE COMBINATION OF A BOLT RECEIVING HOLE FORMED IN THE PLATEN IN LINE WITH A CAVITY IN THE DIE BLOCK, A TAPPED BORE FORMED IN THE DIE BLOCK COXIALLY WITH THE BOLT RECEIVING HOLE, A HOLE FORMED IN THE DIE BLOCK COAXIALLY WITH THE TAPPED BORE AND CREATING OPEN COMMUNICATION BETWEEN THE BOTTOM OF THE CAVITY AND THE TAPPED BORE, A CLAMPING BOLT HAVING A HEAD AND A SHANK, SAID HEAD ENGAGING THE PLATEN, SAID SHANK HAVING EXTERNAL THREADS ON ITS END PORTION AND
Claim 2
Dependent Claim
107 words
AN ATTACHMENT FOR CLAMPING A CAVITY DIE BLOCK TO THE PLATEN OF A MOLDING MACHINE HAVING A RELATIVELY MOVABLE EJECTOR PIN ASSOCIATED THEREWITH; THE COMBINATION OF A BOLT RECEIVING HOLE FORMED IN THE PLATEN IN LINE WITH A CAVITY IN THE DIE BLOCK, A TAPPED BORE FORMED IN THE DIE BLOCK COXIALLY WITH THE BOLT RECEIVING HOLE, A HOLE FORMED IN THE DIE BLOCK COAXIALLY WITH THE TAPPED BORE AND CREATING OPEN COMMUNICATION BETWEEN THE BOTTOM OF THE CAVITY AND THE TAPPED BORE, A CLAMPING BOLT HAVING A HEAD AND A SHANK, SAID HEAD ENGAGING THE PLATEN, SAID SHANK HAVING EXTERNAL THREADS ON ITS END PORTION AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |