US3288451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous production of furnace products
Assignee: Farnsfield Ltd
•
Filing: 1964-02-19
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Granted: 1966-11-29
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Expires: 1984-02-19
Abstract
No abstract record available.
Inventors
- 👤 Howard K Worner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:34
CPC Classifications
C; C22; C22B; C22B19/00; C22B19/04; C03; C03B; C03B5/00; C03B5/04; C03B5/12; C21; C21B; C21B13/00; C21B13/10; C21C; C21C1/00; C21C5/00; C21C5/28; C21C5/42; C21C5/56; C21C5/567; C22B13/00; C22B15/00; C22B15/0026; C22B15/0028; C22B15/003; C22B15/0045; C22B15/0054; C22B15/006; C22B23/00; C22B23/02; C22B23/025; C22B25/00; C22B5/00; C22B9/00; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134; Y10; Y10S; Y10S75/00; Y10S75/957
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
APPARATUS FOR PRODUCING MOLTEN MATERIALS FROM PARTICULATE RAW MATERIALS, COMPRISING A HOUSING HAVING THEREIN AN ELONGATED CHAMBER IN A CLOSED FIGURE, SAID CHAMBER BEING DIVIDED INTO A FEED AND MELTING PORTION AND A FINING PORTION, SAID PORTIONS BEING DISTINCT AND THE FINING PORTION HAVING A GREATER VOLUME THAN THE FEED AND MELTING PORTION, AT LEAST ONE MATERIAL CONDUIT MEANS EXTENDING THROUGH SAID HOUSING INTO SAID FEED AND MELTING PORTION AND DIRECTING THE PARTICULATE MATERIAL AT AN ANGLE TO THE HORIZONTAL AND IN THE DIRECTION OF ELONGATION OF THE FEED AND MELTING PORTION OF SAID CHAMBER TO MOVE MOLTEN MATERIAL IN A FLOWING STREAM THROUGH THE ELONGATED CHAMBER, PARTICULATE MATERIAL FEED MEANS COUPLED TO SAID MATERIAL CONDUIT MEANS FOR FEEDING PARTICULATE MATERIAL AND A FLUID THROUGH SAID MATERIAL CONDUIT MEANS, AT LEAST ONE OXYGEN CONTAINING GAS FEEDING MEANS IN SAID FINING PORTION, SAID HOUSING HAVING A MOLTEN MATERIAL TAPPING MEANS AT THE DOWNSTREAM END OF SAID FINING PORTION AND HAVING AN EXHAUST GAS FLUE AT THE DOWNSTREAM END OF SAID FINING PORTION.
Claim 2
Dependent Claim
171 words
APPARATUS FOR PRODUCING MOLTEN MATERIALS FROM PARTICULATE RAW MATERIALS, COMPRISING A HOUSING HAVING THEREIN AN ELONGATED CHAMBER IN A CLOSED FIGURE, SAID CHAMBER BEING DIVIDED INTO A FEED AND MELTING PORTION AND A FINING PORTION, SAID PORTIONS BEING DISTINCT AND THE FINING PORTION HAVING A GREATER VOLUME THAN THE FEED AND MELTING PORTION, AT LEAST ONE MATERIAL CONDUIT MEANS EXTENDING THROUGH SAID HOUSING INTO SAID FEED AND MELTING PORTION AND DIRECTING THE PARTICULATE MATERIAL AT AN ANGLE TO THE HORIZONTAL AND IN THE DIRECTION OF ELONGATION OF THE FEED AND MELTING PORTION OF SAID CHAMBER TO MOVE MOLTEN MATERIAL IN A FLOWING STREAM THROUGH THE ELONGATED CHAMBER, PARTICULATE MATERIAL FEED MEANS COUPLED TO SAID MATERIAL CONDUIT MEANS FOR FEEDING PARTICULATE MATERIAL AND A FLUID THROUGH SAID MATERIAL CONDUIT MEANS, AT LEAST ONE OXYGEN CONTAINING GAS FEEDING MEANS IN SAID FINING PORTION, SAID HOUSING HAVING A MOLTEN MATERIAL TAPPING MEANS AT THE DOWNSTREAM END OF SAID FINING PORTION AND HAVING AN EXHAUST GAS FLUE AT THE DOWNSTREAM END OF SAID FINING PORTION.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |