US3670487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twister device
Assignee: REED-CHATWOOD Inc
•
Filing: 1970-09-14
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Granted: 1972-06-20
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Expires: 1990-09-14
Abstract
Abstract An improved twister device for imparting a twist to sliver as it is fed to a balling mechanism includes a pair of resilient fingers which are mounted on a rotatable body and define a nip through which the sliver passes. Rotation of the body and fingers twists the sliver. The spacing at the nip between end portions of the fingers is adjustable to enable sliver of different thicknesses to be frictionally engaged with a force such that the sliver will be twisted when the body is rotated and yet enable the sliver to readily pass through the nip. If the nip becomes obstructed, the spacing between the end portions of the fingers can be increased to enable the obstruction to pass through the nip.
Inventors
- 👤 Myron Dragisich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:04
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/92; D01H7/923
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A device for imparting a twist to sliver as the sliver is delivered to a balling machine, said device comprising a rotatable member having an opening through which the sliver moves, means carried by said member and engageable with said sliver to impart a twist to said sliver as the sliver passes through the opening, said means including at least one sliver engaging finger mounted on said member and having an end portion which is biased in one direction and in part defines a nip through which the sliver passes, and adjusting means operatively connected with said finger to limit the movement of said finger under the influence of the bias to thereby control the size of the nip to enable sliver of different thickness to be frictionally engaged at the nip with a force such that the sliver will be twisted when said member is rotated, said adjusting means including an element engageable with said finger and mounted on said member and movable relative to said finger to limit the movement of the finger under the influence of said bias.
Claim 2
Independent Claim
181 words
A device for imparting a twist to sliver as the sliver is delivered to a balling machine, said device comprising a rotatable member having an opening through which the sliver moves, means carried by said member and engageable with said sliver to impart a twist to said sliver as the sliver passes through the opening, said means including at least one sliver engaging finger mounted on said member and having an end portion which is biased in one direction and in part defines a nip through which the sliver passes, and adjusting means operatively connected with said finger to limit the movement of said finger under the influence of the bias to thereby control the size of the nip to enable sliver of different thickness to be frictionally engaged at the nip with a force such that the sliver will be twisted when said member is rotated, said adjusting means including an element engageable with said finger and mounted on said member and movable relative to said finger to limit the movement of the finger under the influence of said bias.
Claim 3
Dependent Claim
78 words
A device as set forth in claim 1 wherein said nip is defined by the end portion of said finger and the end portion of a cooperating finger, said fingers being biased to move said end portions away from each other at the nip, and said element having surfaces engageable with said fingers and operablE to retain said fingers against influence of the bias to thereby maintain said end portions in a desired positional relationship with each other.
Claim 4
Dependent Claim
97 words
A device as set forth in claim 2 wherein said fingers are formed of a resilient material to provide said bias thereon and said adjusting means includes an annular element which has an inner surface means disposed in engagement with said resilient fingers to hold said resilient fingers in a deflected condition and an outer surface means which is manually engageable to move said annular element axially along said member to vary the extent to which said resilient fingers are deflected to thereby vary the spacing between said end portions of said resilient fingers at the nip.
Claim 5
Dependent Claim
58 words
A device as set forth in claim 3 further including a plurality of retaining teeth formed on each of said resilient fingers for engaging said annular element to hold said annular element in a given position relative to said member and said resilient fingers to thereby maintain a desired spacing between said end portions of said resilient fingers.
Claim 6
Independent Claim
195 words
A device for imparting a twist to sliver as the sliver is being delivered to a balling machine, said device comprising a rotatable member having an opening through which the sliver moves, means carried by said member and engageable with the sliver to twist the sliver as the member rotates, said means comprising at least one finger made of a resilient material and having a fixed end portion secured to said member, said resilient finger having a movable end portion which in part defines a nip through which the sliver passes, said movable end portion being biased in a direction tending to increase the size of the nip, and an element cooperable with said resilient finger to limit the outward movement of said movable end portion under the influence of said bias, said element and said resilient finger having cooperating portions which block movement of said element along said resilient finger, said resilient finger having an intermediate portion which is manually engageable so as to effect inward movement of said movable end portion relative to said element to release said cooperating portions so as to enable said element to be moved along said resilient finger.
Claim 7
Independent Claim
195 words
A device for imparting a twist to sliver as the sliver is being delivered to a balling machine, said device comprising a rotatable member having an opening through which the sliver moves, means carried by said member and engageable with the sliver to twist the sliver as the member rotates, said means comprising at least one finger made of a resilient material and having a fixed end portion secured to said member, said resilient finger having a movable end portion which in part defines a nip through which the sliver passes, said movable end portion being biased in a direction tending to increase the size of the nip, and an element cooperable with said resilient finger to limit the outward movement of said movable end portion under the influence of said bias, said element and said resilient finger having cooperating portions which block movement of said element along said resilient finger, said resilient finger having an intermediate portion which is manually engageable so as to effect inward movement of said movable end portion relative to said element to release said cooperating portions so as to enable said element to be moved along said resilient finger.
Claim 8
Dependent Claim
31 words
A device as set forth in claim 5 wherein said element is a ring which circumscribes said member and is movable axially along said member between said first and second positions.
Claim 9
Dependent Claim
89 words
A device as set forth in claim 5 wherein said nip is defined by the end portion of said resilient finger and a movable end portion of a cooperating resilient finger, said resilient fingers being biased so that said end portions of said fingers tend to move away from each other to increase the spacing between said end portions at the nip, said resilient fingers being held by said element against the influence of the bias when the spacing between said end portions at the nip is relatively small.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |