US3253559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zigzag mechanisms for sewing machines
Assignee: Singer Co
•
Filing: 1955-12-05
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Granted: 1966-05-31
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Expires: 1975-12-05
Abstract
No abstract record available.
Inventors
- 👤 Amico Anthony F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:39
CPC Classifications
D; D05; D05B; D05B19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A SEWING MACHINE HAVING A FRAME, A NEEDLE-BAR MOUNTED IN SAID FRAME FOR LATERAL OSCILLATION AND FOR ENDWISE RECIPROCATION, A MAIN SHAFT JOURNALED IN SAID FRAME FOR ROTATION, OPERATIVE CONNECTIONS BETWEEN SAID MAIN SHAFT AND SAID NEEDLE-BAR FOR IMPARTING ENDWISE RECIPROCATTION TO THE NEEDLE-BAR UPON ROTATION OF SAID SHAFT, A PITMAN OPERATIVELY CONNECTED TO SAID NEEDLE BAR FOR IMPARTING VIBRATION THERETO UPON ACTUATION OF SAID PITMAN, AND MEANS FOR ACTUATING SAID PITMAN DURING OPERATION OF SAID SEWING MACHINE COMPRISING A PLURALITY OF AXIALLY ALIGNED STITCH-PATTERN CAMS ROTATABLY CARRIED BY SAID FRAME WITH THE AXIS THEREOF EXTENDING IN THE SAME DIRECTION AS THE AXIS OF SAID MAIN SHAFT, DRIVE CONNECTIONS BETWEEN SAID MAIN SHAFT AND SAID CAMS FOR ROTATING SAID CAMS UPON ROTATION OF SAID MAIN SHAFT, A PIVOT SHAFT
Claim 2
Dependent Claim
130 words
IN A SEWING MACHINE HAVING A FRAME, A NEEDLE-BAR MOUNTED IN SAID FRAME FOR LATERAL OSCILLATION AND FOR ENDWISE RECIPROCATION, A MAIN SHAFT JOURNALED IN SAID FRAME FOR ROTATION, OPERATIVE CONNECTIONS BETWEEN SAID MAIN SHAFT AND SAID NEEDLE-BAR FOR IMPARTING ENDWISE RECIPROCATTION TO THE NEEDLE-BAR UPON ROTATION OF SAID SHAFT, A PITMAN OPERATIVELY CONNECTED TO SAID NEEDLE BAR FOR IMPARTING VIBRATION THERETO UPON ACTUATION OF SAID PITMAN, AND MEANS FOR ACTUATING SAID PITMAN DURING OPERATION OF SAID SEWING MACHINE COMPRISING A PLURALITY OF AXIALLY ALIGNED STITCH-PATTERN CAMS ROTATABLY CARRIED BY SAID FRAME WITH THE AXIS THEREOF EXTENDING IN THE SAME DIRECTION AS THE AXIS OF SAID MAIN SHAFT, DRIVE CONNECTIONS BETWEEN SAID MAIN SHAFT AND SAID CAMS FOR ROTATING SAID CAMS UPON ROTATION OF SAID MAIN SHAFT, A PIVOT SHAFT
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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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |