US3191918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flow brightening electrolytic tinplate
Assignee: Primerica Inc
•
Filing: 1961-06-15
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Granted: 1965-06-29
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Expires: 1981-06-15
Abstract
No abstract record available.
Inventors
- 👤 Kamm Gillbert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:51
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/48; C25D5/50; H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
AN APPARATUS FOR FLOW-BRIGHTENING ELECTROLYTIC TIN PLATE IN THE FORM OF CONTINUOUS STRIP COMPRISING A COMBINATION, MEANS FOR CONVEYING SAID STRIP ALONG A PREDETERMINED PATH OF TRAVEL AT A CONSTANT RATE, A FIRST AND SECOND INDUCTION HEATER LOCATED AT SPACED POINTS IN SAID PATH WITH THE LONGITUDINAL AXIS OF EACH SUBSTANTIALLY COINCIDENT WITH SAID PATH WHEREBY THE COILS OF EACH HEATER SURROUND A PORTION OF SAID MOVING STRIP, MEANS ELECTRICALLY CONNECTED TO EACH HEATER TO SUPPLY ELECTRIC POWER THERETO TO INCREASE THE TEMPERATURE OF THE STRIP MOVING THERETHROUGH, SAID FIRST HEATER INCREASING THE TEMPERATURE OF SAID STRIP TO BETWEEN 400-449* F., AND SAID SECOND HEATER INCREASING THE TEMPERATURE OF SAID STRIP TO ABOVE THE MELTING POINT OF TIN, SUBSTANTIALLY CONSTANT TEMPERATURE OVEN MEANS SITUATED IN SAID PATH BETWEEN SAID FIRST AND SECOND HEATERS ADAPTED TO MAINTAIN SAID MOVING STRIP AT A TEMPERATURE OF 400-449* F. FOR A PREDETERMINED TIME, TEMPERATURE DETECTING MEANS SEPARATE FROM SAID OVEN MEANS SITUATED ADJACENT SAID SECOND HEATER TO DETECT THE LINE AT WHICH SAID TIN MELTS, CONTROL MEANS OPERATIVELY CONNECTED TO SAID DETECTING MEANS AND TO THE POWER SUPPLY MEANS CONNECTED TO SAID SECOND HEATER TO ADJUST AUTOMATICALLY THE POWER INPUT TO SAID SECOND HEATER TO ADJUST AUTOSAID TIN MELTING LINE IN PROXIMITY TO SAID SECOND HEATER, AND COOLING MEANS SITUATED IN SAID PATH SUBSEQUENT TO SAID TIN MELTING LINE TO QUENCY AND SOLIDIFY SAID MOLTEN TIN.
Claim 2
Independent Claim
232 words
AN APPARATUS FOR FLOW-BRIGHTENING ELECTROLYTIC TIN PLATE IN THE FORM OF CONTINUOUS STRIP COMPRISING A COMBINATION, MEANS FOR CONVEYING SAID STRIP ALONG A PREDETERMINED PATH OF TRAVEL AT A CONSTANT RATE, A FIRST AND SECOND INDUCTION HEATER LOCATED AT SPACED POINTS IN SAID PATH WITH THE LONGITUDINAL AXIS OF EACH SUBSTANTIALLY COINCIDENT WITH SAID PATH WHEREBY THE COILS OF EACH HEATER SURROUND A PORTION OF SAID MOVING STRIP, MEANS ELECTRICALLY CONNECTED TO EACH HEATER TO SUPPLY ELECTRIC POWER THERETO TO INCREASE THE TEMPERATURE OF THE STRIP MOVING THERETHROUGH, SAID FIRST HEATER INCREASING THE TEMPERATURE OF SAID STRIP TO BETWEEN 400-449* F., AND SAID SECOND HEATER INCREASING THE TEMPERATURE OF SAID STRIP TO ABOVE THE MELTING POINT OF TIN, SUBSTANTIALLY CONSTANT TEMPERATURE OVEN MEANS SITUATED IN SAID PATH BETWEEN SAID FIRST AND SECOND HEATERS ADAPTED TO MAINTAIN SAID MOVING STRIP AT A TEMPERATURE OF 400-449* F. FOR A PREDETERMINED TIME, TEMPERATURE DETECTING MEANS SEPARATE FROM SAID OVEN MEANS SITUATED ADJACENT SAID SECOND HEATER TO DETECT THE LINE AT WHICH SAID TIN MELTS, CONTROL MEANS OPERATIVELY CONNECTED TO SAID DETECTING MEANS AND TO THE POWER SUPPLY MEANS CONNECTED TO SAID SECOND HEATER TO ADJUST AUTOMATICALLY THE POWER INPUT TO SAID SECOND HEATER TO ADJUST AUTOSAID TIN MELTING LINE IN PROXIMITY TO SAID SECOND HEATER, AND COOLING MEANS SITUATED IN SAID PATH SUBSEQUENT TO SAID TIN MELTING LINE TO QUENCY AND SOLIDIFY SAID MOLTEN TIN.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |