Patent US3307968A successfully refreshed from Google Patents.
US3307968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling the alloying of zinc coatings
Assignee: Armco Inc
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Filing: 1963-09-03
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Granted: 1967-03-07
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Paul E Schnedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:23
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/34; C23C2/36; C23C2/38; C23C2/04; C23C2/06; C23C2/26; C23C2/28; C23C2/29; G; G01; G01N; G01N21/00; G01N21/17; G01N21/55
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
IN A COATING APPARATUS FOR COATING A STRIP OF METAL WITH A LAYER OF ANOTHER METAL, WHEREIN THE STRIP PASSES THROUGH A BATH OF MOLTEN COATING METAL AND THEN UPWARDLY VERTICALLY IN AN ALLOYING RUN; BOOSTER HEATING MEANS POSITIONED JUST ABOVE SAID BATH TO HEAT SAID STRIP TO A TEMPERATURE AT WHICH ALLOYING OF SAID COATING METAL WITH THE METAL OF SAID STRIP WILL TAKE PLACE, ELECTRICAL MEANS FOR SUPPLYING HEAT TO THE STRIP FROM WITHIN OVER THE ENTIRE ALLOYING RUN TO MAINTAIN ALLOYING TEMPERATYRE IN THE STRIP DURING THE ALLOYING REACTION, A LURALITY OF SUPPLEMENTAL HEATING DEVICES IMMEDIATELY ABOVE SAID BOOSTER HEATING MEANS TO PROVIDE HEAT TO LONGITUDINAL ZONES OF THE STRIP SELECTIVELY, AND A PLURALITY OF CONTROL MEANS RESPONSIVE TO THE REFLECTIVITY OF THE STRIP IN SAID LONGITUDINAL ZONES DISPOSED ABOVE SAID SUPPLEMENTAL HEATING DEVICES AND IN THE LATTER PORTION OF SAID ALLOYING RUN FOR CONTROLLING RESPECTIVE ONES OF SAID SUPPLEMENTAL HEATING DEVICES.
Claim 2
Dependent Claim
155 words
IN A COATING APPARATUS FOR COATING A STRIP OF METAL WITH A LAYER OF ANOTHER METAL, WHEREIN THE STRIP PASSES THROUGH A BATH OF MOLTEN COATING METAL AND THEN UPWARDLY VERTICALLY IN AN ALLOYING RUN; BOOSTER HEATING MEANS POSITIONED JUST ABOVE SAID BATH TO HEAT SAID STRIP TO A TEMPERATURE AT WHICH ALLOYING OF SAID COATING METAL WITH THE METAL OF SAID STRIP WILL TAKE PLACE, ELECTRICAL MEANS FOR SUPPLYING HEAT TO THE STRIP FROM WITHIN OVER THE ENTIRE ALLOYING RUN TO MAINTAIN ALLOYING TEMPERATYRE IN THE STRIP DURING THE ALLOYING REACTION, A LURALITY OF SUPPLEMENTAL HEATING DEVICES IMMEDIATELY ABOVE SAID BOOSTER HEATING MEANS TO PROVIDE HEAT TO LONGITUDINAL ZONES OF THE STRIP SELECTIVELY, AND A PLURALITY OF CONTROL MEANS RESPONSIVE TO THE REFLECTIVITY OF THE STRIP IN SAID LONGITUDINAL ZONES DISPOSED ABOVE SAID SUPPLEMENTAL HEATING DEVICES AND IN THE LATTER PORTION OF SAID ALLOYING RUN FOR CONTROLLING RESPECTIVE ONES OF SAID SUPPLEMENTAL HEATING DEVICES.
Claim 3
Independent Claim
39 words
THE METHOD OF PRODUCING ON A METALLIC STRIP A HIGHLY UNIFORM ONE PHASE ALLOYED ZINC COATING, WHEREIN MOLTEN ZINC IS APPLIED TO THE STRIP BY PASSING THE STRIP THROUGH A BATH OF MOLTEN ZINC AND THENCE VERTICALLY UPWARDLY IN
Claim 4
Independent Claim
39 words
THE METHOD OF PRODUCING ON A METALLIC STRIP A HIGHLY UNIFORM ONE PHASE ALLOYED ZINC COATING, WHEREIN MOLTEN ZINC IS APPLIED TO THE STRIP BY PASSING THE STRIP THROUGH A BATH OF MOLTEN ZINC AND THENCE VERTICALLY UPWARDLY IN
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |