US4232426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web guiding device
Assignee: Truetzschler GmbH and Co KG
•
Filing: 1978-03-16
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Granted: 1980-11-11
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Expires: 1998-03-16
Abstract
Abstract A device for gathering a running fiber web delivered by a pair of cooperating rolls (forming part of a web delivering assembly arranged downstream of a carding machine) includes at least one operationally substantially stationary guide element having a hollow guiding face. The guide element is supported downstream of and immediately adjacent to the rolls of the web delivering assembly. The hollow guiding face extends transversely to the direction of advance of the web as the latter leaves the rolls and shrouds at least one part of both rolls.
Inventors
- 👤 Wolfgang Beneke
- 👤 Paul G. Teichmann
- 👤 Wilfried Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:19
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/46; D01G31/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
141 words
In a carding machine including a cylinder; a web delivering assembly arranged downstream of the cylinder and including a pair of cooperating rolls for delivering a running fiber web; a device arranged downstream of the web delivering assembly for gathering the running fiber web; the device including at least one operationally substantially stationary guide element having a hollow guiding face, the improvement wherein said guide element is supported downstream of and immediately adjacent to said rolls; said hollow guiding face extending transversely to the direction of web discharge by said rolls and shrouding at least one part of both said rolls; and said hollow guiding face having upper and lower longitudinal bounding edges extending immediately adjacent and parallel to the one and the other of said rolls, whereby air is substantially prevented from impinging on the running web from the outside.
Claim 2
Dependent Claim
141 words
In a carding machine including a cylinder; a web delivering assembly arranged downstream of the cylinder and including a pair of cooperating rolls for delivering a running fiber web; a device arranged downstream of the web delivering assembly for gathering the running fiber web; the device including at least one operationally substantially stationary guide element having a hollow guiding face, the improvement wherein said guide element is supported downstream of and immediately adjacent to said rolls; said hollow guiding face extending transversely to the direction of web discharge by said rolls and shrouding at least one part of both said rolls; and said hollow guiding face having upper and lower longitudinal bounding edges extending immediately adjacent and parallel to the one and the other of said rolls, whereby air is substantially prevented from impinging on the running web from the outside.
Claim 3
Dependent Claim
25 words
A device as defined in claim 1, wherein said guiding face shrouds said rolls substantially in their entirety on the side the web is discharged.
Claim 4
Dependent Claim
76 words
A carding machine as defined in claim 1, wherein said guide element has opposite first and second ends; further wherein said guide element is supported at said first end for pivotal motion about a vertical axis; further wherein said guide element has a rounded lateral edge at said second end; and further wherein said guide element has an uninterrupted surface, whereby the fiber web gathered by the guide element is discharged solely at said second end.
Claim 5
Dependent Claim
16 words
A device as defined in claim 1, wherein said guiding face extends parallel to said rolls.
Claim 6
Dependent Claim
21 words
A device as defined in claim 1, wherein said guiding face extends at an oblique angle with respect to said rolls.
Claim 7
Dependent Claim
24 words
A device as defined in claim 1, further comprising adjusting means for providing mobility of said guide element towards or away from said rolls.
Claim 8
Dependent Claim
28 words
A carding machine as defined in claim 6, wherein said adjusting means comprises means for providing mobility of said guide element parallel to said direction of web discharge.
Claim 9
Dependent Claim
26 words
A carding machine as defined in claim 6, wherein said adjusting means comprises means for providing pivotal mobility of said guide element about a vertical axis.
Claim 10
Dependent Claim
26 words
A carding machine as defined in claim 6, wherein said adjusting means comprises means for providing pivotal mobility of said guide element about a horizontal axis.
Claim 11
Dependent Claim
14 words
A carding machine as defined in claim 1, wherein said guiding face is concave.
Claim 12
Dependent Claim
16 words
A carding machine as defined in claim 10, wherein said guiding face has a curved surface.
Claim 13
Dependent Claim
25 words
A carding machine as defined in claim 10, wherein said guiding face comprises at least two planar surfaces arranged at an angle to one another.
Claim 14
Dependent Claim
21 words
A carding machine as defined in claim 1, further comprising means defining at least one discharge opening in said guide element.
Claim 15
Dependent Claim
17 words
A carding machine as defined in claim 13, wherein said discharge opening has an entirely closed outline.
Claim 16
Dependent Claim
21 words
A carding machine as defined in claim 10, wherein said discharge opening has an outline which is open at one side.
Claim 17
Dependent Claim
39 words
A carding machine as defined in claim 1, wherein said guide element has opposite lateral edges and said rolls have opposite ends; said opposite ends of said rolls projecting beyond the respective opposite lateral edges of said guide element.
Claim 18
Dependent Claim
32 words
A carding machine as defined in claim 1, wherein said guide element is formed of at least two guide element parts spaced from one another to define a throughgoing slot between themselves.
Claim 19
Dependent Claim
24 words
A carding machine as defined in claim 1, wherein said guide element has at least one rounded lateral edge for guiding the web thereon.
Claim 20
Dependent Claim
25 words
A carding machine as defined in claim 1, wherein said guiding face extends, from its middle, at inclined angles towards opposite ends of said rolls.
Claim 21
Dependent Claim
16 words
A carding machine as defined in claim 19, wherein openings of said angles are arranged back-to-back.
Claim 22
Dependent Claim
18 words
A carding machine as defined in claim 19, wherein openings of said angles are oriented towards one another.
References Cited (Backward Citations)
AT96352B
Cited
US1648050A
Cited
US2903751A
Cited
US3196492A
Cited
GB934611A
Cited
US3362049A
Cited
GB1177461A
Cited
US3533138A
Cited
US3946464A
Cited
GB1358990A
Cited
US3840942A
Cited
DE2623400A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |