US3748817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a package of flexible material with radial inner end feed out
Assignee: Windings Inc
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Filing: 1971-09-15
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Granted: 1973-07-31
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Expires: 1991-09-15
Abstract
Abstract A package of flexible material having a radial opening into the axial opening through which the inner end of the material is led out is formed by winding the material on a mandrel having outwardly sloping end forms with a guide moving with a constant stroke at a constant distance from the axis of the spindle and the stroke of which is coordinated with the rotation of the spindle. The resulting package has outwardly sloping end walls. After the package is completed, it is compressed endwise until the end walls are substantially perpendicular to the longitudinal axis of the package.
Inventors
- 👤 J Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:43
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/02; B65D85/04; B65H; B65H55/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A method of making a package of flexible material of the universal type having a radial opening into the axial opening which comprises winding the flexible material on a spindle while moving a guide for the flexible material back and forth longitudinally of the spindle and laying up on the spindle layers of gradually increasing ratio while maintaining the number of coils in each layer constant, thereby forming a package having outwardly sloping ends, compressing the ends inwardly to a substantially flat radial condition by applying end members on each end of the package and pressing said members towards each other, and thereafter enclosing the compressed package and end members in a wrapping.
Claim 2
Independent Claim
113 words
A method of making a package of flexible material of the universal type having a radial opening into the axial opening which comprises winding the flexible material on a spindle while moving a guide for the flexible material back and forth longitudinally of the spindle and laying up on the spindle layers of gradually increasing ratio while maintaining the number of coils in each layer constant, thereby forming a package having outwardly sloping ends, compressing the ends inwardly to a substantially flat radial condition by applying end members on each end of the package and pressing said members towards each other, and thereafter enclosing the compressed package and end members in a wrapping.
References Cited (Backward Citations)
US2780191A
Cited
US3178130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |