US3279424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating webs with polymerizable materials
Assignee: Champion Papers Inc
•
Filing: 1960-11-02
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Granted: 1966-10-18
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Expires: 1980-11-02
Abstract
No abstract record available.
Inventors
- 👤 Jr George E Brown
- 👤 Hackley Kenneth Lewis
- 👤 David H Nowak
- 👤 Edmund A Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:57
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/78; D06; D06B; D06B1/00; D06B1/04; D21H25/00; D21H25/08; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; B; B29; B29C; B29C43/00; B29C43/22; B29C43/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
APPARATUS FOR THE CONTINUOUS COATING OF MOVING WEBS COMPRISING: MIXING MEANS FOR RAPIDLY BLENDING AND SUPPLYING A COATING TO THE SURFACE OF THE WEB, FIXEDLY MOUNTED DOCTORING MEANS SUBSTANTIALLY UNIFORM THROUGHOUT ITS LENGTH ACTING TO CONTINUOUSLY SMOOTH A SMALL PORTION OF THE COATING ON THE MOVING WEB WHILE CONFINING A MAJOR PORTION OF THE COATING AS A POOL ON THE SURFACE OF THE WEB, A BACK UP ROLL ADJACENT THE DOCTORING MEANS IN A POSITION TO SUPPORT THE WEB AGAINST PRESSURE WHICH IS EXERTED THEREON BY THE DOCTORING MEANS, SAID DOCTORING MEANS AND ADJACENTLY MOUNTED ROLL BEING WIDER THAN THE WIDTHS OF THE WEB TO BE COATED, AND MEANS FOR LUBRICATING WITH AN AQUEOUS LIQUID THE LINE OF DIRECT CONTACT BETWEEN THE DOCTORING MEANS AND THE ROLL BEYOND THE EDGES OF SAID WEB.
Claim 2
Dependent Claim
133 words
APPARATUS FOR THE CONTINUOUS COATING OF MOVING WEBS COMPRISING: MIXING MEANS FOR RAPIDLY BLENDING AND SUPPLYING A COATING TO THE SURFACE OF THE WEB, FIXEDLY MOUNTED DOCTORING MEANS SUBSTANTIALLY UNIFORM THROUGHOUT ITS LENGTH ACTING TO CONTINUOUSLY SMOOTH A SMALL PORTION OF THE COATING ON THE MOVING WEB WHILE CONFINING A MAJOR PORTION OF THE COATING AS A POOL ON THE SURFACE OF THE WEB, A BACK UP ROLL ADJACENT THE DOCTORING MEANS IN A POSITION TO SUPPORT THE WEB AGAINST PRESSURE WHICH IS EXERTED THEREON BY THE DOCTORING MEANS, SAID DOCTORING MEANS AND ADJACENTLY MOUNTED ROLL BEING WIDER THAN THE WIDTHS OF THE WEB TO BE COATED, AND MEANS FOR LUBRICATING WITH AN AQUEOUS LIQUID THE LINE OF DIRECT CONTACT BETWEEN THE DOCTORING MEANS AND THE ROLL BEYOND THE EDGES OF SAID WEB.
References Cited (Backward Citations)
US2155083A
Cited
US2322533A
Cited
US2423555A
Cited
US2457657A
Cited
US2632422A
Cited
US2631960A
Cited
US2759847A
Cited
US2847196A
Cited
US2946307A
Cited
US2921867A
Cited
US2794754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |