Patent US3190249A successfully refreshed from Google Patents.
US3190249A
Expired / Lapsed
US
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Tensioning device for the upper thread in a sewing machine
Assignee: Fritz Gegauf AG
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Filing: 1962-12-20
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Granted: 1965-06-22
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Fritz Gegauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:40
CPC Classifications
D; D05; D05B; D05B47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A SEWING MACHINE INCLUDING A VERTICAL STANDARD SUPPORTING A SUBSTANTIALLY HORIZONTAL UPPER ARM HAVING AN UPPER SURFACE AND DEPENDING SIDE AND END SURFACE, AND THREAD CONTROL MEANS ON A SIDE SURFACE OF SAID ARM; AN UPWARDLY OPENING SLOT EXTENDING TRANSVERSELY OF THE UPPER SURFACE OF SAID ARM BETWEEN SAID SIDE SURFACES AND SUBSTANTIALLY ABOVE SAID THREAD CONTROL MEANS; AN UPPER THREAD TENSIONING DEVICE WITHIN SAID ARM BENEATH SAID UPPER SURFACE AND BETWEEN SAID SIDE SURFACES, AND HAVING SPRING BIASED THREAD TENSIONING DISKS, THE THREAD ENGAGING SURFACES OF SAID DISKS EXTENDING TRANSVERSELY OF SAID ARM AND BEING LOCATED WITHIN SAID SLOT; AND TENSION ADJUSTING MEANS OPERATIVELY ASSOCIATED WITH SAID DISK, AND INCLUDING A MANUAL ADJUSTER OPERATIVELY ASSOCIATED WITH SAID TENSION DEVICE AND EXTENDING TO THE EXTERIOR OF SAID ARM.
Claim 2
Dependent Claim
129 words
IN A SEWING MACHINE INCLUDING A VERTICAL STANDARD SUPPORTING A SUBSTANTIALLY HORIZONTAL UPPER ARM HAVING AN UPPER SURFACE AND DEPENDING SIDE AND END SURFACE, AND THREAD CONTROL MEANS ON A SIDE SURFACE OF SAID ARM; AN UPWARDLY OPENING SLOT EXTENDING TRANSVERSELY OF THE UPPER SURFACE OF SAID ARM BETWEEN SAID SIDE SURFACES AND SUBSTANTIALLY ABOVE SAID THREAD CONTROL MEANS; AN UPPER THREAD TENSIONING DEVICE WITHIN SAID ARM BENEATH SAID UPPER SURFACE AND BETWEEN SAID SIDE SURFACES, AND HAVING SPRING BIASED THREAD TENSIONING DISKS, THE THREAD ENGAGING SURFACES OF SAID DISKS EXTENDING TRANSVERSELY OF SAID ARM AND BEING LOCATED WITHIN SAID SLOT; AND TENSION ADJUSTING MEANS OPERATIVELY ASSOCIATED WITH SAID DISK, AND INCLUDING A MANUAL ADJUSTER OPERATIVELY ASSOCIATED WITH SAID TENSION DEVICE AND EXTENDING TO THE EXTERIOR OF SAID ARM.
References Cited (Backward Citations)
CH184853A
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US2166770A
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US2297061A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |