Patent US2918393A successfully refreshed from Google Patents.
US2918393A
Expired / Lapsed
US
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Method and apparatus for roll coating webs
Assignee: Olin Corp
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Filing: 1956-06-12
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Granted: 1959-12-22
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Expires: 1976-06-12
Abstract
No abstract record available.
Inventors
- 👤 Sidney J Wommack
- 👤 Harry A Kahn
- 👤 John F Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:07
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D7/04; B05D1/00; B05D1/28; B05D1/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN THE PROCESS OF COATING A MOVING CELLOPHANE FILM AND THE LIKE WITH AN AQUEOUS DISPERSION COMPOSITION, THE IMPROVED COMBINATION OF STEPS TO SUBSTIANTIALLY ELIMANATE CROWN EFFECTS WHICH COMPRISES, PROVIDING A CONTINUOUS FLOW OF SAID AQUEOUS DISPERSION OF SUBSTANTIALLY UNIFORM COMPOSITION SUBSTANTIALLY PARALLEL TO THE MOVEMENT OF SAID FILM TO A COATING REGION, CONTINUOUSLY WITHDRAWING SAID COMPOSITION AS A STREAM FROM THE SURFACE OF THE REGION AT UNIFORMLY SPACED POINTS, TO MINIMIZE DIFFERENTIAL RATE OF FLOW OF SAID COMPOSITION THROUGH SAID COATING REGION, CONTINUOUSLY REMOVING A PORTION OF SAID FLOW ING COMPOSITION FROM SAID STREAM IN A DIRECTION OPPOSITE TO THE DIRECTION OF FLOW BY ROLL COATING TO TRANSFER SAID REMOVED COATING CONTINUOUSLY TO SAID FILM.
Claim 2
Dependent Claim
116 words
IN THE PROCESS OF COATING A MOVING CELLOPHANE FILM AND THE LIKE WITH AN AQUEOUS DISPERSION COMPOSITION, THE IMPROVED COMBINATION OF STEPS TO SUBSTIANTIALLY ELIMANATE CROWN EFFECTS WHICH COMPRISES, PROVIDING A CONTINUOUS FLOW OF SAID AQUEOUS DISPERSION OF SUBSTANTIALLY UNIFORM COMPOSITION SUBSTANTIALLY PARALLEL TO THE MOVEMENT OF SAID FILM TO A COATING REGION, CONTINUOUSLY WITHDRAWING SAID COMPOSITION AS A STREAM FROM THE SURFACE OF THE REGION AT UNIFORMLY SPACED POINTS, TO MINIMIZE DIFFERENTIAL RATE OF FLOW OF SAID COMPOSITION THROUGH SAID COATING REGION, CONTINUOUSLY REMOVING A PORTION OF SAID FLOW ING COMPOSITION FROM SAID STREAM IN A DIRECTION OPPOSITE TO THE DIRECTION OF FLOW BY ROLL COATING TO TRANSFER SAID REMOVED COATING CONTINUOUSLY TO SAID FILM.
References Cited (Backward Citations)
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US2168997A
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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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |