US3177643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-twist spindle
Assignee: Doutors Holding SA
•
Filing: 1963-10-22
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Granted: 1965-04-13
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Expires: 1983-10-22
Abstract
No abstract record available.
Inventors
- 👤 Halleux Pierre De
- 👤 Walkenier Raoul
- 👤 Henri R Duesberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:58
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/10; D01H13/104; D01H13/106; D01H1/00; D01H1/10; D01H1/105; D01H1/106; D02; D02G; D02G3/00; D02G3/02; D02G3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A DOUBLE TWIST SPINDLE ADAPTED FOR TWISTING FLAT STRIP MATERIAL AND COMPRISING, IN COMBINATION, A ROTARY SPINDLE SHAFT HAVING A DUCT EXTENDING AXIALLY THEREOF; AND ANNULAR MAGAZINE FOR CONTAINING AT LEAST ONE REEL OF SUCH STRIP MATERIAL, MEANS FOR MAINTAINING SAID MAGAZINE SUBSTANTIALLY STATIONARY DURING THE OPERATION OF THE SPINDLE; A FUNNEL DEVICE COAXIAL WITH SAID SPINDLE SHAFT COMMUNICATING WITH THE DUCT IN SAID SPINDLE SHAFT AND ROTATABLE INDEPENDENTLY OF THE SHAFT AND OF THE MAGAZINE; A CIRCULAR COVER PLATE FOR SAID MAGAZINE RIGID WITH SAID FUNNEL DEVICE AND THUS ALSO ROTATABLE INDEPENDENTLY OF SAID SHAFT
Claim 2
Dependent Claim
96 words
A DOUBLE TWIST SPINDLE ADAPTED FOR TWISTING FLAT STRIP MATERIAL AND COMPRISING, IN COMBINATION, A ROTARY SPINDLE SHAFT HAVING A DUCT EXTENDING AXIALLY THEREOF; AND ANNULAR MAGAZINE FOR CONTAINING AT LEAST ONE REEL OF SUCH STRIP MATERIAL, MEANS FOR MAINTAINING SAID MAGAZINE SUBSTANTIALLY STATIONARY DURING THE OPERATION OF THE SPINDLE; A FUNNEL DEVICE COAXIAL WITH SAID SPINDLE SHAFT COMMUNICATING WITH THE DUCT IN SAID SPINDLE SHAFT AND ROTATABLE INDEPENDENTLY OF THE SHAFT AND OF THE MAGAZINE; A CIRCULAR COVER PLATE FOR SAID MAGAZINE RIGID WITH SAID FUNNEL DEVICE AND THUS ALSO ROTATABLE INDEPENDENTLY OF SAID SHAFT
References Cited (Backward Citations)
US2445721A
Cited
US2492581A
Cited
GB725283A
Cited
US2576124A
Cited
US2620617A
Cited
US3121989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |