US3698355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating and/or impregnating a sheet material
Assignee: Aku NV
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Filing: 1969-11-17
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Granted: 1972-10-17
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Expires: 1989-11-17
Abstract
Abstract A sheet being passed through a slit-shaped channel in a metering device is contacted on one or more sides with a coating and/or impregnating agent which is supplied through one or more feed openings in the walls of the channel. The size of the feed openings may be adjusted to vary the distribution of the coating and/or impregnating agent, and the contour of the slit-shaped channel may be adjusted e.g., to vary the pressure build-up within the channel.
Inventors
- 👤 James W I Heijnis
- 👤 Joseph T V M Geusgens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:05
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/655; D06; D06B; D06B1/00; D06B1/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
An apparatus for coating and/or impregnating a sheet material such as webs of filaments or fibers, which apparatus has a slit-shaped channel through which the sheet material may be passed, one or two channel walls being provided with a slotted feed opening through which a treating agent may be supplied, characterized in that along the slit-shaped channel there are provided several independently adjustable means for locally varying the free outlet area of the passage of a feed slot, said adjustable means consisting of independently acting nuts which are screwed on bolts for causing a pull or push to be exerted on elastically deformable slot walls.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |