Patent US3968542A successfully refreshed from Google Patents.
US3968542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beater roll
Assignee: Individual
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Filing: 1975-03-21
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Granted: 1976-07-13
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Expires: 1995-03-21
Abstract
Abstract A beater roll for open end spinning is illustrated wherein a coil of metallic wire card clothing has a predetermined set applied therein prior to installation such that the coil assumes an inside diameter less than an outside diameter of a molded plastic drum on which it is installed, the coil being wound in successive contiguous convolutions so that the beater roll is durable, disposable and has a minimized tendency to load with fibers.
Inventors
- 👤 John D. Hollingsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:38
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/30; D01H4/32; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
154 words
A beater roll for opening fibers comprising: a cylindrical drum constructed of molded synthetic polymeric material having a longitudinal central opening for mounting the drum for rotation; a coil of preset metallic wire card clothing having a base portion carrying spaced carding teeth extending upwardly therefrom adjacent an edge thereof with a predetermined set in said coil of metallic card clothing such that in an unstressed state, the coil would assume an inside diameter less than an outside diameter of the drum; said coil having successive contiguous convolutions and with such set remaining therein, upon the drum so as to aid in retaining the coil thereon by the compressive stresses produced by the set causing the clothing to bear and exert constrictive force upon the drum so as to grip the drum; and adhesive means extending between said wire card clothing and said surface of the drum as well as between said contiguous convolutions.
Claim 2
Dependent Claim
154 words
A beater roll for opening fibers comprising: a cylindrical drum constructed of molded synthetic polymeric material having a longitudinal central opening for mounting the drum for rotation; a coil of preset metallic wire card clothing having a base portion carrying spaced carding teeth extending upwardly therefrom adjacent an edge thereof with a predetermined set in said coil of metallic card clothing such that in an unstressed state, the coil would assume an inside diameter less than an outside diameter of the drum; said coil having successive contiguous convolutions and with such set remaining therein, upon the drum so as to aid in retaining the coil thereon by the compressive stresses produced by the set causing the clothing to bear and exert constrictive force upon the drum so as to grip the drum; and adhesive means extending between said wire card clothing and said surface of the drum as well as between said contiguous convolutions.
Claim 3
Dependent Claim
28 words
The structure set forth in claim 1, wherein a leading edge of said wire card clothing is tapered upwardly rearwardly opposite a direction of rotation of the drum.
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) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |