US3358746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection-type casting apparatus
Assignee: Amsted Industries Inc
•
Filing: 1965-07-09
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Granted: 1967-12-19
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 John E Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
CASTING APPARATUS COMPRISING A LADDLE CONTAINING MOLTEN METAL, A POURING TUBE EXTENDING DOWNWARDLY INTO THE MOLTEN METAL AND ADATPED FOR POURING COMMUNICATION WITH AN ASSOCIATED MOLD THEREABOVE, POWER MEANS FOR ELEVATING THE LADLE, AND CONTROL MEANS RESPONSIVE TO DIMINUTION OF THE MOLTEN METAL IN THE LADLE FOR AUTOMATICALLY ENERGIZING SAID POWER MEANS TO MAINTAIN THE MOLTEN METAL IN CONTACT WITH THE POURING TUBE AT ITS LOWER END AS THE UPPER LEVEL OF THE MOLTEN METAL IS LOWERED WITHING THE LADLE BY PASSAGE OF THE MOLTEN METAL THROUGH THE TUBE INTO THE MOLD.
References Cited (Backward Citations)
US2906521A
Cited
US2997756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |