US3647138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating head subassembly with cleanout port
Assignee: Eastman Kodak Co
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Filing: 1969-11-17
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Granted: 1972-03-07
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Expires: 1989-11-17
Abstract
Abstract In the construction of a laminated coating head in which drops of coating material are ejected from very small orifices in an orifice plate toward a web or other article to be coated, the orifice plate, the filter plate, and an inlet plate are first assembled in what is termed a ''''clean package'''' and flushed through a port in the inlet plate with a cleaning fluid to insure that no particles large enough to clog the orifices have been trapped in the coating head during construction thereof. Compressed air may also be blown into the assembly during flushing and following flushing, the port on the inlet plate is sealed and the remaining components attached to the ''''clean package.
Inventors
- 👤 Philip H Houser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:25
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/015; B41J2/02; B41J2/025; B41J2/135; B41J2/14; B41J2002/14362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A subassembly of coating head components comprising: a. a filter plate having a plurality of perforations formed therein; b. an orifice plate having a series of orifices formed therein; c. an inlet plate member interposed between said filter plate and said orifice plate and having an elongated slot formed therein defining an enclosed space extending between and interconnecting said perforations and said orifices; and d. a cleanout port extending from an external wall of said inlet plate member and communicating with said slot.
Claim 2
Dependent Claim
83 words
A subassembly of coating head components comprising: a. a filter plate having a plurality of perforations formed therein; b. an orifice plate having a series of orifices formed therein; c. an inlet plate member interposed between said filter plate and said orifice plate and having an elongated slot formed therein defining an enclosed space extending between and interconnecting said perforations and said orifices; and d. a cleanout port extending from an external wall of said inlet plate member and communicating with said slot.
References Cited (Backward Citations)
US3373437A
Cited
US3485706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |