US4272866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web guiding device for a carding machine
Assignee: Truetzschler GmbH and Co KG
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Filing: 1979-10-10
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Granted: 1981-06-16
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Expires: 1999-10-10
Abstract
Abstract A carding machine has a web delivering assembly including cooperating upper and lower rollers and a web guiding device for withdrawing and gathering a fiber web discharged by the web delivering assembly. The web guiding device includes a guide element arranged immediately downstream of the rollers as viewed in the direction of advance of the fiber web. The guide element has at least one operationally stationary guide face extending transversely to the plane in which the fiber web advances. The guide element further has an upper longitudinal edge extending along the upper roller in the immediate vicinity thereof and a lower longitudinal edge extending along the lower roller at a sufficient distance therefrom for allowing waste to drop out downwardly from the fiber web as is passes from the rollers to the guide element.
Inventors
- 👤 Ulrich Vollrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/46
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
140 words
In a carding machine having a web delivering assembly including cooperating upper and lower rollers; a web guiding device for withdrawing and gathering a fiber web discharged by the web delivering assembly; the web guiding device including a guide element arranged immediately downstream of the rollers as viewed in the direction of advance of the fiber web; the guide element having at least one operationally stationary guide face extending transversely to the plane in which the fiber web advances; the guide element further having an upper longitudinal edge extending along the upper roller in the immediate vicinity thereof; the improvement wherein said guide element has a lower longitudinal edge extending along said lower roller at a sufficient distance therefrom for allowing waste to drop out downwardly from the fiber web as it passes from said rollers to said guide element.
Claim 2
Dependent Claim
140 words
In a carding machine having a web delivering assembly including cooperating upper and lower rollers; a web guiding device for withdrawing and gathering a fiber web discharged by the web delivering assembly; the web guiding device including a guide element arranged immediately downstream of the rollers as viewed in the direction of advance of the fiber web; the guide element having at least one operationally stationary guide face extending transversely to the plane in which the fiber web advances; the guide element further having an upper longitudinal edge extending along the upper roller in the immediate vicinity thereof; the improvement wherein said guide element has a lower longitudinal edge extending along said lower roller at a sufficient distance therefrom for allowing waste to drop out downwardly from the fiber web as it passes from said rollers to said guide element.
Claim 3
Dependent Claim
15 words
A carding machine as defined in claim 1, wherein said guide element is downwardly open.
Claim 4
Dependent Claim
17 words
A carding machine as defined in claim 1, wherein said guide face has a planar, vertical zone.
Claim 5
Dependent Claim
24 words
A carding machine as defined in claim 1, wherein said guide face extends below the level of the lowermost points of said lower roller.
Claim 6
Dependent Claim
31 words
A carding machine as defined in claim 1, wherein said guide face has a lower portion inclined downwardly in the direction of said rollers for providing a slide for the waste.
Claim 7
Dependent Claim
46 words
A carding machine as defined in claim 1, wherein said lower longitudinal edge has first and second length portions extending, from a central part of the guide element, towards respective opposite ends of said rollers at an acute angle with respect to axes of said rollers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |