US3606973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter plate for a coating head
Assignee: Eastman Kodak Co
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Filing: 1969-11-17
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Granted: 1971-09-21
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Expires: 1989-11-17
Abstract
Abstract IN A NONCONTACTING COATING HEAD IN WHICH DROPS OF COATING ARE EJECTED FROM VERY SMALL ORIFICES IN AN ORIFICE PLATE TOWARD A WEB OR OTHER ARTICLE BEING COATED, A FILTER PLATE HAVING PERFORATIONS THEREIN NO LARGER THAN THE ORIFICES IS MOUNTED DIRECTLY IN THE COATING HEAD JUST UPSTREAM OF THE ORIFICE PLATE TO REMOVE FROM THE COATING MATERIAL ANY PARTICLES OF A SIZE SUFFICIENT TO CLOG THE ORIFICES. THE TOTAL OPEN AREA OF THE PERFORATIONS IS GREATER THAN THE TOTAL OPEN AREA OF THE ORIFICES SO THAT AN APPRECIABLE NUMBER OF PERFORATIONS CAN BE BLOCKED BY A FOREIGN PARTICLES WITHOUT SERIOUSLY AFFECTING OPERATION OF THE COATING HEAD.
Inventors
- 👤 Gerald T Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:37
CPC Classifications
D; D06; D06B; D06B11/00; D06B11/0056; D06B11/0059; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17563
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |