US3187394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for pouring molten metal into molds
Assignee: Park Ohio Holdings Corp
•
Filing: 1961-09-18
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Granted: 1965-06-08
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Tama Mario
- 👤 Wilbur E Shearman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:13
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A TILTABLE FURNACE COMPRISING A MAIN HEARTH ADAPTED TO CONTAIN MOLTEN METAL, FILL MEANS DISPOSED AT ONE SIDE THEREOF AND DISCHARGE MEANS DISPOSED AT ANOTHER SIDE THEREOF, SAID DISCHARGE MEANS BEING PROVIDED WITH AN INCLINED TUBE HAVING ITS LOWER END SUBMERGED IN THE MOLTEN METAL AND ITS UPPER END DISPOSED ABOVE THE LEVEL OF THE MOLTEN METAL, MEANS FOR INTERMITTENTLY APPLYING PRESSURE TO THE MOLTEN METAL WITHIN THE HEARTH TO CAUSE MOLTEN METAL TO DISCHARGE THROUGH SAID TUBE, A SENSING DEVICE TO SENSE THE LEVEL OF THE METAL IN SAID TUBE, MEANS ACTUATED BY SAID LEVEL SENSING DEVICE TO TILT THE SAID HEARTH TO MAINTAIN THE LEVEL OF METAL IN SAID TUBE AT A PRE-
Claim 2
Dependent Claim
116 words
IN A TILTABLE FURNACE COMPRISING A MAIN HEARTH ADAPTED TO CONTAIN MOLTEN METAL, FILL MEANS DISPOSED AT ONE SIDE THEREOF AND DISCHARGE MEANS DISPOSED AT ANOTHER SIDE THEREOF, SAID DISCHARGE MEANS BEING PROVIDED WITH AN INCLINED TUBE HAVING ITS LOWER END SUBMERGED IN THE MOLTEN METAL AND ITS UPPER END DISPOSED ABOVE THE LEVEL OF THE MOLTEN METAL, MEANS FOR INTERMITTENTLY APPLYING PRESSURE TO THE MOLTEN METAL WITHIN THE HEARTH TO CAUSE MOLTEN METAL TO DISCHARGE THROUGH SAID TUBE, A SENSING DEVICE TO SENSE THE LEVEL OF THE METAL IN SAID TUBE, MEANS ACTUATED BY SAID LEVEL SENSING DEVICE TO TILT THE SAID HEARTH TO MAINTAIN THE LEVEL OF METAL IN SAID TUBE AT A PRE-
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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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |