US3224398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine driving devices
Assignee: Singer Co
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Filing: 1963-09-16
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Granted: 1965-12-21
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Robert G Greulich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:19
CPC Classifications
D; D05; D05B; D05B69/00; D05B69/30; D05B69/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A DRIVING ARRANGEMENT FOR A SEWING MACHINE HAVING A DRIVE SHAFT COMPRISING A HANDWHEEL JOURNALED RELATIVELY TO SAID DRIVE SHAFT, MEANS SECURED FOR ROTATION WITH SAID HANDWHEEL AND ADAPTED TO BE DRIVINGLY CONNECTED WITH A FOOT TREADLE DEVICE, A DRIVE ELEMENT JOURNALED RELATIVELY TO SAID DRIVE SHAFT, AN ELECTRIC MOTOR OPERATIVELY CONNECTED TO SAID DRIVE ELEMENT, A FIRST OPERATOR INFLUENCED CLUTCH MEANS FOR SELECTIVELY COUPLING SAID HAND WHEEL TO SAID DRIVE ELEMENT, SAID CLUTCH BEING DISENGAGEABLE TO COMPLETELY UNCOUPLE SAID HANDWHEEL FROM SAID DRIVE ELEMENT, AND A SECOND OPERATOR INFLUENCED CLUTCH MEANS FOR SELECTIVELY COUPLING SAID HANDWHEEL TO SAID SEWING MACHING DRIVE SHAFT.
Claim 2
Dependent Claim
103 words
A DRIVING ARRANGEMENT FOR A SEWING MACHINE HAVING A DRIVE SHAFT COMPRISING A HANDWHEEL JOURNALED RELATIVELY TO SAID DRIVE SHAFT, MEANS SECURED FOR ROTATION WITH SAID HANDWHEEL AND ADAPTED TO BE DRIVINGLY CONNECTED WITH A FOOT TREADLE DEVICE, A DRIVE ELEMENT JOURNALED RELATIVELY TO SAID DRIVE SHAFT, AN ELECTRIC MOTOR OPERATIVELY CONNECTED TO SAID DRIVE ELEMENT, A FIRST OPERATOR INFLUENCED CLUTCH MEANS FOR SELECTIVELY COUPLING SAID HAND WHEEL TO SAID DRIVE ELEMENT, SAID CLUTCH BEING DISENGAGEABLE TO COMPLETELY UNCOUPLE SAID HANDWHEEL FROM SAID DRIVE ELEMENT, AND A SECOND OPERATOR INFLUENCED CLUTCH MEANS FOR SELECTIVELY COUPLING SAID HANDWHEEL TO SAID SEWING MACHING DRIVE SHAFT.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |