US3728853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for interrupting the supply of fiber material to a spinning machine
Assignee: Maschinenfabrik Rieter AG
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Filing: 1971-07-21
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Granted: 1973-04-24
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Expires: 1991-07-21
Abstract
Abstract The fiber beard is lifted from the action area of the combing roll of the supply device in response to a disturbance in the spinning machine. The fiber beard is lifted mechanically by a baffle or is eliminated by pivoting of the feed roll assembly away from the combing roll or by reversing of the transporting belts. The fibers beard can also be lifted pneumatically by means of a suction chamber on the wall of the combing roll housing.
Inventors
- 👤 A Schiltknecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:06
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/14; D01H13/16; D01H13/18; D01H4/00; D01H4/30; D01H4/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
75 words
A method for automatically interrupting a supply of fiber material to a spinning rotor of an open end spinning machine from a supply device including a combing roll and a sliver feed device for feeding a sliver to the combing roll, said method including the step of eliminating a fiber beard produced in the reach of the combing roll at the end of a sliver fed thereto from the action area of the combing roll.
Claim 2
Independent Claim
75 words
A method for automatically interrupting a supply of fiber material to a spinning rotor of an open end spinning machine from a supply device including a combing roll and a sliver feed device for feeding a sliver to the combing roll, said method including the step of eliminating a fiber beard produced in the reach of the combing roll at the end of a sliver fed thereto from the action area of the combing roll.
Claim 3
Dependent Claim
15 words
A method as set forth in claim 1 wherein the fiber beard is eliminated mechanically.
Claim 4
Dependent Claim
15 words
A method as set forth in claim 1 wherein the fiber beard is eliminated pneumatically.
Claim 5
Independent Claim
77 words
An apparatus for interrupting a supply of fiber material to a spinning rotor of an open end spinning machine from a supply device including a combing roll for opening a sliver and a sliver feed device for feeding a sliver to the combing roll, said apparatus comprising means for eliminating a fiber beard produced in the reach of said combing roll at the end of the sliver fed thereto from the action area of said combing roll.
Claim 6
Independent Claim
77 words
An apparatus for interrupting a supply of fiber material to a spinning rotor of an open end spinning machine from a supply device including a combing roll for opening a sliver and a sliver feed device for feeding a sliver to the combing roll, said apparatus comprising means for eliminating a fiber beard produced in the reach of said combing roll at the end of the sliver fed thereto from the action area of said combing roll.
Claim 7
Dependent Claim
29 words
An apparatus as set forth in claim 4 wherein said means is a baffle pivotally mounted about said combing roll to lift the fiber beard from said combing roll.
Claim 8
Dependent Claim
43 words
An apparatus as set forth in claim 4 wherein said feed supply device includes a housing about said combing roll and said means includes a connection pivotally mounting said sliver feed device on said housing to selectively move away from said combing roll.
Claim 9
Dependent Claim
53 words
An apparatus as set forth in claim 4 wherein said feed device includes a pair of endless transporting belts and drive rolls for driving said belts and wherein said means includes a reversible drive mechanism connected to at least one of said drive rolls for reversing the direction of movement of said belts.
Claim 10
Dependent Claim
31 words
An apparatus as set forth in claim 4 wherein said feed device is reversible and said means includes a reversible drive mechanism connected to said feed device for reversing said device.
Claim 11
Dependent Claim
65 words
An apparatus as set forth in claim 4 wherein said supply device includes a housing having a cylindrical wall about said combing roll and said means includes a suction chamber extending over a portion of said wall in communication with the region of said combing roll and means for creating a suction force in said chamber to draw the fiber beard from said combing roll.
Claim 12
Dependent Claim
25 words
An apparatus as set forth in claim 9 wherein said means includes an air permeable separation wall between said suction chamber and said combing roll.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |