Patent US3695977A successfully refreshed from Google Patents.
US3695977A
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US
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Device to produce nonwoven continuous ribbons from threads
Assignee: TENZIG SERGEEVICH CHARGEISHVIL
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Filing: 1970-03-17
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Granted: 1972-10-03
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Expires: 1990-03-17
Abstract
Abstract A DEVICE TO PRODUCE CONTINUOUS NONWOVEN RIBBONS FROM THREADS, COMPROSING SEVERAL PAIRS OF SUCCESSIVELY MOUNTED CYLINDRICAL ELEMENTS EACH HAVING A SMOOTH SURFACE, THE ELEMENTS IN EACH PAIR BEING DISPOSED IN PARALLEL VERTICAL PLANES SPACED APART BY NOT MORE THAN THE DIAMETER OF ONE ELEMENT, AND BEING INCLINED AT AN ANGLE TO ONE ANOTHER SUCH THAT THE ANGLE BETWEEN THE GENERATRICES OF THESE ELEMENTS IS GREATER THAN 90*, AND LESS THAN 180*, THIS ANGLE PROVIDING FOR A TRANSVERSE SHIFT OF THE THREADS FROM THE PERIPHERY TOWARD THE CENTER, THUS FORMING THE RIBBON.
Inventors
- 👤 David Georgievich Kandelaki
- 👤 Tenzig Sergeevic Chargeishvili
- 👤 Georgy Alexandrovich Skvortsov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:27
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |