US3320086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating travelling webs
Assignee: British Cellophane Ltd
•
Filing: 1962-12-12
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Granted: 1967-05-16
•
Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Rose Richard Arthur
- 👤 Phillips Cyril Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:12
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; B; B05; B05C; B05C9/00; B05C9/04; B05C9/08; B05C9/14; D21H5/00; D21H5/0005; D21H5/0025; D21H5/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A METHOD OF COATING A FLEXIBLE TRAVELLING WEB OF CELLULOSIC OR SYNTHETIC PLASTIC FILM WITH A LIQUID COATING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OR DISPERSION OF A SYNTHETIC POLYMER; WHICH METHOD CONSISTS ESSENTIALLY OF COATING A FIRST SIDE OF THE TRAVELLING WEB FROM EDGE TO EDGE WITH THE LIQUID COATING COMPOSITION WHEREBY THE FIRST SIDE IS WETTED; REMOVING ANY EXCESS COATING COMPOSITION FROM THE FIRST SIDE OF SAID WEB; THEN, WHILE THE COATING ON THE FIRST SIDE IS STILL WET, COATING THE SECOND SIDE OF SAID WEB FROM EDGE TO EDGE WITH SAID LIQUID COATING COMPOSITION; AND REMOVING ANY EXCESS COATING COMPOSITION FROM SAID SECOND SIDE OF THE WEB BY DIRECTING A BLAST FROM THE NOZZLE OF AN AIR KNIFE AGAINST SAID SECOND COATED SIDE OF THE WEB WHILE THE TRAVELLING WEB IS SUPPORTED WITH THE FIRST COATED SIDE IN CLOSE CONTACT WITH A SMOOTH HEATED SURFACE TO THEREBY SUBSTANTIALLY DRY THE COATING APPLIED TO THE FIRST SIDE OF THE WEB; AND THEN REMOVING SAID WEB FROM SAID SMOOTH HEATED SURFACE.
Claim 2
Independent Claim
171 words
A METHOD OF COATING A FLEXIBLE TRAVELLING WEB OF CELLULOSIC OR SYNTHETIC PLASTIC FILM WITH A LIQUID COATING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OR DISPERSION OF A SYNTHETIC POLYMER; WHICH METHOD CONSISTS ESSENTIALLY OF COATING A FIRST SIDE OF THE TRAVELLING WEB FROM EDGE TO EDGE WITH THE LIQUID COATING COMPOSITION WHEREBY THE FIRST SIDE IS WETTED; REMOVING ANY EXCESS COATING COMPOSITION FROM THE FIRST SIDE OF SAID WEB; THEN, WHILE THE COATING ON THE FIRST SIDE IS STILL WET, COATING THE SECOND SIDE OF SAID WEB FROM EDGE TO EDGE WITH SAID LIQUID COATING COMPOSITION; AND REMOVING ANY EXCESS COATING COMPOSITION FROM SAID SECOND SIDE OF THE WEB BY DIRECTING A BLAST FROM THE NOZZLE OF AN AIR KNIFE AGAINST SAID SECOND COATED SIDE OF THE WEB WHILE THE TRAVELLING WEB IS SUPPORTED WITH THE FIRST COATED SIDE IN CLOSE CONTACT WITH A SMOOTH HEATED SURFACE TO THEREBY SUBSTANTIALLY DRY THE COATING APPLIED TO THE FIRST SIDE OF THE WEB; AND THEN REMOVING SAID WEB FROM SAID SMOOTH HEATED SURFACE.
References Cited (Backward Citations)
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US2819984A
Cited
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Cited
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Cited
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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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |