US2872180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for adding solid material to molten metal
Assignee: A J Boynton & Co
•
Filing: 1957-02-25
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Granted: 1959-02-03
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Rudolph Tietig
- 👤 Jr Daniel J Pollingue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:49
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0025; F27D3/0031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
APPARATUS FOR ADDING SOLILD MATERIAL TO MOLTEN METAL IN A LADLE AS THE METAL IS POURED INTO THE LADLE, WHICH COMPRISES APPARATUS MOVABLE SUPPORTED FOR MOVEMENT TOWARDS ANSD FROM THE LADLE AND INCLUDING A HOPPER, FEEDER PAN, BELOW THE HOPPER, MEANS FOR VIBRATING THE FEEDER PAN, A DI-SCHARGE CHUTE HAVING A METERIAL-RECEIVING END AND A DISCHASRGE END AND ADAPTED TO EXTEND IN INCLINED MATERIAL-LEADING POSITION BETWEEN THE FEEDER PAN AND THE LADLE AND TO BE RETRACTED FROM SUCH INCLINED MATERIAL-LEADING POSITIO, MEANS ON THE APPARATUS PIVOTALLY SUPPORTING THE MATERIAL-RECEIVING END OF THE DISCHARGE CHUTE, A ROLLER SUPPORTING THE DISCHARGE CHUTE INTERMEDIATE ITS MATERIAL-RECEIVING END AND ITS DISCHARGE END THE SAID MEANS BEING MOVABLE TOWARDS AND AWAY FROM SAID ROLLER WHEREBY THE DISCHARGE END OF THE DISCHARG CHUTE MAY BE EXTENDED INTO AND WITHDRAWN FROM THE LADLE AND THE INCLINATION OF THE CHUTE MAY BE VARIED
Claim 2
Dependent Claim
145 words
APPARATUS FOR ADDING SOLILD MATERIAL TO MOLTEN METAL IN A LADLE AS THE METAL IS POURED INTO THE LADLE, WHICH COMPRISES APPARATUS MOVABLE SUPPORTED FOR MOVEMENT TOWARDS ANSD FROM THE LADLE AND INCLUDING A HOPPER, FEEDER PAN, BELOW THE HOPPER, MEANS FOR VIBRATING THE FEEDER PAN, A DI-SCHARGE CHUTE HAVING A METERIAL-RECEIVING END AND A DISCHASRGE END AND ADAPTED TO EXTEND IN INCLINED MATERIAL-LEADING POSITION BETWEEN THE FEEDER PAN AND THE LADLE AND TO BE RETRACTED FROM SUCH INCLINED MATERIAL-LEADING POSITIO, MEANS ON THE APPARATUS PIVOTALLY SUPPORTING THE MATERIAL-RECEIVING END OF THE DISCHARGE CHUTE, A ROLLER SUPPORTING THE DISCHARGE CHUTE INTERMEDIATE ITS MATERIAL-RECEIVING END AND ITS DISCHARGE END THE SAID MEANS BEING MOVABLE TOWARDS AND AWAY FROM SAID ROLLER WHEREBY THE DISCHARGE END OF THE DISCHARG CHUTE MAY BE EXTENDED INTO AND WITHDRAWN FROM THE LADLE AND THE INCLINATION OF THE CHUTE MAY BE VARIED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |