US3138127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for the drive of a lock stitch sewing machine
Assignee: Singer Co
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Filing: 1961-11-03
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Granted: 1964-06-23
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Ketterer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:58
CPC Classifications
D; D05; D05B; D05B57/00; D05B57/30; D05B57/36; D05B57/26; D05B57/265; D05B59/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A LOCK STITCH SEWING MACHINE HAVING STITCH FORMING INSTRUMENTALITIES INCLUDING A NEEDLE AND A LOOP-TAKER, A BOBBIN JOURNALED IN SAID LOOP-TAKER, ACTUATING MEANS INTERCONNECTING SAID NEEDLE AND LOOP-TAKER FOR INTERRELATED MOVEMENT AS IS REQUIRED FOR THE FORMATION OF LOCK STITCHES, AN ELECTRIC MOTOR CONNECTED TO DRIVE SAID ACTUATING MEANS, MEANS FOR REPLENISHING THREAD ON SAID BOBBIN IN PLACE IN SAID LOOP-TAKER DURING SAID INTERRELATED MOTION OF SAID NEEDLE AND LOOP-TAKER, MEANS FOR SENSING A PREDETERMINED QUANTITY OF THREAD WOUND ON SAID BOBBIN, ELECTRIC SWITCH MEANS RESPONSIVE TO OPERATION OF SAID BOBBIN THREAD SENSING MEANS, AND MEANS CONNECTING SAID SWITCH MEANS ELECTRICALLY WITH SAID ELECTRIC MOTOR TO DEENERGIZE SAID MOTOR FOR INTERRUPTING SAID DRIVE FOR SAID ACTUATING MECHANISM.
Claim 2
Dependent Claim
117 words
A LOCK STITCH SEWING MACHINE HAVING STITCH FORMING INSTRUMENTALITIES INCLUDING A NEEDLE AND A LOOP-TAKER, A BOBBIN JOURNALED IN SAID LOOP-TAKER, ACTUATING MEANS INTERCONNECTING SAID NEEDLE AND LOOP-TAKER FOR INTERRELATED MOVEMENT AS IS REQUIRED FOR THE FORMATION OF LOCK STITCHES, AN ELECTRIC MOTOR CONNECTED TO DRIVE SAID ACTUATING MEANS, MEANS FOR REPLENISHING THREAD ON SAID BOBBIN IN PLACE IN SAID LOOP-TAKER DURING SAID INTERRELATED MOTION OF SAID NEEDLE AND LOOP-TAKER, MEANS FOR SENSING A PREDETERMINED QUANTITY OF THREAD WOUND ON SAID BOBBIN, ELECTRIC SWITCH MEANS RESPONSIVE TO OPERATION OF SAID BOBBIN THREAD SENSING MEANS, AND MEANS CONNECTING SAID SWITCH MEANS ELECTRICALLY WITH SAID ELECTRIC MOTOR TO DEENERGIZE SAID MOTOR FOR INTERRUPTING SAID DRIVE FOR SAID ACTUATING MECHANISM.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |