US3151376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous production of packages containing a zig-zag folded strip of wadding or cotton wool material
Assignee: IVF Bandage Machinery Co
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Filing: 1962-09-26
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Granted: 1964-10-06
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Witschi Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:43
CPC Classifications
D; D06; D06H; D06H7/00; D06H7/10; B; B65; B65H; B65H2404/00; B65H2404/10; B65H2404/12; B65H2404/121; B65H2404/15; B65H2404/153; B65H2404/1532
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF CONTINUOUSLY PRODUCING PACKAGES EACH CONTAINING A LENGTH OF WADDING MATERIAL IN STRIP FORM FOLDED ZIG-ZAG FASHION INSIDE THE PACKAGE, SAID METHOD COMPRISING THE STEPS OF: WINDING A CARDED WEB OF FIBROUS MATERIAL OF UNIFORM THICKNESS CYLINDRICALLY WITH RESPECT TO A FIXED AXIS TO FORM A PLURALITY OF SUPERPOSED LAYERS HAVING A TOTAL THICKNESS WHICH CONSTITUTES THE THICKNESS OF SAID MATERIAL IN STRIP FORM; ADVANCING SAID CARDED WEB LONGITUDINALLY OF SAID AXIS AT A SPEED WHICH BEARS A FIXED RATIO TO THE SPEED OF SAID WINDING STEP, SAID ADVANCING STEP BEING PERFORMED SIMULTANEOUSLY WITH SAID WINDING STEP; CONTINUOUSLY CUTTING AN END PORTION OF THE CYLINDER FORMED BY SAID WINDING AND ADVANCING STEPS TO OBTAIN SAID MATERIAL IN STRIP FORM; SEVERING SAID MATERIAL IN STRIP FORM TO PROVIDE A SERIES OF SEPARATE STRIPS OF UNIFORMS LENGTH; FOLDING EACH OF SAID SEPARATE STRIPS IN ZIG-ZAG FASHION TO FORM A PACKAGEABLE UNIT; AND SEPARATELY PACKAGING EACH OF SAID STRIPS AFTER SAID FOLDING STEP.
Claim 2
Independent Claim
162 words
A METHOD OF CONTINUOUSLY PRODUCING PACKAGES EACH CONTAINING A LENGTH OF WADDING MATERIAL IN STRIP FORM FOLDED ZIG-ZAG FASHION INSIDE THE PACKAGE, SAID METHOD COMPRISING THE STEPS OF: WINDING A CARDED WEB OF FIBROUS MATERIAL OF UNIFORM THICKNESS CYLINDRICALLY WITH RESPECT TO A FIXED AXIS TO FORM A PLURALITY OF SUPERPOSED LAYERS HAVING A TOTAL THICKNESS WHICH CONSTITUTES THE THICKNESS OF SAID MATERIAL IN STRIP FORM; ADVANCING SAID CARDED WEB LONGITUDINALLY OF SAID AXIS AT A SPEED WHICH BEARS A FIXED RATIO TO THE SPEED OF SAID WINDING STEP, SAID ADVANCING STEP BEING PERFORMED SIMULTANEOUSLY WITH SAID WINDING STEP; CONTINUOUSLY CUTTING AN END PORTION OF THE CYLINDER FORMED BY SAID WINDING AND ADVANCING STEPS TO OBTAIN SAID MATERIAL IN STRIP FORM; SEVERING SAID MATERIAL IN STRIP FORM TO PROVIDE A SERIES OF SEPARATE STRIPS OF UNIFORMS LENGTH; FOLDING EACH OF SAID SEPARATE STRIPS IN ZIG-ZAG FASHION TO FORM A PACKAGEABLE UNIT; AND SEPARATELY PACKAGING EACH OF SAID STRIPS AFTER SAID FOLDING STEP.
References Cited (Backward Citations)
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US2388591A
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US2421750A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |