US3863597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for applying a coating layer
Assignee: Individual
•
Filing: 1973-07-05
•
Granted: 1975-02-04
•
Expires: 1993-07-05
Abstract
Abstract A device for coating a travelling web constituted by the combination of two elements: an apparatus for uniformly applying a coating substance upon the web and a thin flexible doctor blade resting with little pressure upon the substance applied on the web.
Inventors
- 👤 Lodewijk Anselrode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:06
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/10; B; B05; B05C; B05C11/00; B05C11/02; B05C11/04; B05C11/041; D06; D06B; D06B15/00; D06B15/08; D06B15/085; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; D21H5/0065
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
174 words
A device for applying a uniform smooth surface coating layer to an advancing web consisting of an apparatus contacting an advancing web for applying the coating substance to said web, and a vertically disposed doctor blade member for accurately and evenly striking off the applied coating material, said application apparatus comprising a cylindrical mesh stencil having an inner squeegee therein to provide a uniform distribution of the coating substance upon the web in contact with said stencil, said member comprising a very thin flexible blade contacting the coating substance on the web under a slightly resilient pressure and disposed at a very small angle relative to the web, the coated web moving in an upward direction, a plurality of vertically aligned rollers guiding said advancing web, one of said guide rollers being operatively associated as a backup member with respect to said doctor blade, and said one roll being adjustable, in its back-up position, between a location just in front of to a location just in back of the point of said blade contact.
Claim 2
Independent Claim
174 words
A device for applying a uniform smooth surface coating layer to an advancing web consisting of an apparatus contacting an advancing web for applying the coating substance to said web, and a vertically disposed doctor blade member for accurately and evenly striking off the applied coating material, said application apparatus comprising a cylindrical mesh stencil having an inner squeegee therein to provide a uniform distribution of the coating substance upon the web in contact with said stencil, said member comprising a very thin flexible blade contacting the coating substance on the web under a slightly resilient pressure and disposed at a very small angle relative to the web, the coated web moving in an upward direction, a plurality of vertically aligned rollers guiding said advancing web, one of said guide rollers being operatively associated as a backup member with respect to said doctor blade, and said one roll being adjustable, in its back-up position, between a location just in front of to a location just in back of the point of said blade contact.
Claim 3
Dependent Claim
33 words
A device accoRding to claim 1 wherein said doctor blade has a thickness of approximately 0.05 - 0.20 mm. and the width of the projecting portion of said blade is approximately 20-50 mm.
References Cited (Backward Citations)
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Cited
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US2736290A
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US3078822A
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US3442684A
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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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |