Patent US2558132A successfully refreshed from Google Patents.
US3194545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously solution heat-treating aluminum and its alloys
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1960-03-17
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Granted: 1965-07-13
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Expires: 1980-03-17
Abstract
No abstract record available.
Inventors
- 👤 Smith Arthur Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
APPARATUS FOR CONTINUOUSLY SOLUTION HEAT TREATING AN ELONGATED HEAT TREATABLE ALUMINUM MEMBER COMPRISING A HEATING FURNACE, A HOLDING FURNANCE ADJACENT SAID HEATING FURNACE, SAID HEATING AND HOLDING FURNANCES HAVING AN OUTER SHELL, A RADIATION SHIELF MOUNTED INSIDE SAID SHELL IN SPACED RELATIONSHIP THEREWITH, PARTITION WALLS WITHIN SAID HEATING FURNACE WHICH DEFINE A TORTUOUS JPATH, SAID HOLDING FURNACE COMPRISING AN UNDIVIDED CHAMBER, COMMON HEATING MEANS FOR HEATING SAID ALUMINUM METAL MEMBER IN SAID HEATING FURNACE TO SOLUTION HEAT TREATING TEMPERATURE WHILE MAINTAINING SUBSTANTIALLY ZERO HEAT HEAD IN THE FURNANCE ABOVE THE SOLUTION HEAT TREATING TEMPERATURE AND FOR MAINTAINING SAID FOLDING FURNACE ALSO AT SAID TEMPERATURE, SAID COMMON HEATING MEANS COMPRISING MEANS FOR CONVEYING HIGH VELOCITY HEATED GAS BOTH ALONG SAID TORTUOUS PATH IN SAID HEATING FURNACE IN A DIRECTION OPPOSITE TO TRAVEL OF SAID METAL MEMBER AND INTO THE UNDIVIDED CHAMBER COMPRISING SAID HOLDING FURNACE, MEANS WITHIN SAID HEATING FURNANCE FOR SUPPORTING
Claim 2
Dependent Claim
151 words
APPARATUS FOR CONTINUOUSLY SOLUTION HEAT TREATING AN ELONGATED HEAT TREATABLE ALUMINUM MEMBER COMPRISING A HEATING FURNACE, A HOLDING FURNANCE ADJACENT SAID HEATING FURNACE, SAID HEATING AND HOLDING FURNANCES HAVING AN OUTER SHELL, A RADIATION SHIELF MOUNTED INSIDE SAID SHELL IN SPACED RELATIONSHIP THEREWITH, PARTITION WALLS WITHIN SAID HEATING FURNACE WHICH DEFINE A TORTUOUS JPATH, SAID HOLDING FURNACE COMPRISING AN UNDIVIDED CHAMBER, COMMON HEATING MEANS FOR HEATING SAID ALUMINUM METAL MEMBER IN SAID HEATING FURNACE TO SOLUTION HEAT TREATING TEMPERATURE WHILE MAINTAINING SUBSTANTIALLY ZERO HEAT HEAD IN THE FURNANCE ABOVE THE SOLUTION HEAT TREATING TEMPERATURE AND FOR MAINTAINING SAID FOLDING FURNACE ALSO AT SAID TEMPERATURE, SAID COMMON HEATING MEANS COMPRISING MEANS FOR CONVEYING HIGH VELOCITY HEATED GAS BOTH ALONG SAID TORTUOUS PATH IN SAID HEATING FURNACE IN A DIRECTION OPPOSITE TO TRAVEL OF SAID METAL MEMBER AND INTO THE UNDIVIDED CHAMBER COMPRISING SAID HOLDING FURNACE, MEANS WITHIN SAID HEATING FURNANCE FOR SUPPORTING
References Cited (Backward Citations)
US2104518A
Cited
US2232391A
Cited
US2669442A
Cited
US2887422A
Cited
US2693353A
Cited
GB801363A
Cited
US2926902A
Cited
US2991989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |