US3310013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cam opener mechanism
Assignee: Union Special Machine Co
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Filing: 1963-10-16
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Granted: 1967-03-21
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:35
CPC Classifications
D; D05; D05B; D05B57/00; D05B57/08; D05B57/10; D05B57/14; D05B57/143; D05B73/00; D05B73/04; D05B73/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A LOCK-STITCH SEWING MACHINE HAVING A WORK SUPPORTING BASE, A ROTARY DRIVE SHAFT JOURNALLED LONGITUDINALLY IN SAID BASE, A HOOK SHAFT MOUNTED IN SAID BASE, GEARS CONNECTING SAID DRIVE SHAFT TO SAID HOOK SHAFT, A ROTARY CAM SHAFT MOUNTED PARALLEL TO SAID HOOK SHAFT, A SPROCKET ON THE CAM SHAFT, A GEAR ADJUSTABLY CARRIED BY THE DRIVE SHAFT, A BRACKET, A JOURNAL BEARING CARRIED BY SAID BRACKET SEPARATE AND APART FROM THE HOOK SHAFT MOUNTING AND MOUNTED ON THE BASE, MEANS FOR ADJUSTING SAID BRACKET LONGITUDINALLY OF THE DRIVE SHAFT, AN INDEPENDENT SHAFT REVOLVABLY MOUNTED IN THE JOURNAL BEARING, A GEAR ON ONE END OF THE LAST NAMED SHAFT IN ENGAGEMENT WITH THE ADJUSTABLE GEAR ON THE DRIVE SHAFT, A SPROCKET ON THE OPPOSITE END OF THE INDEPENDENT SHAFT AND A DRIVE BELT CONNECTING SAID LAST NAMED SPROCKET WITH THE SPROCKET ON THE CAM SHAFT.
Claim 2
Dependent Claim
146 words
IN A LOCK-STITCH SEWING MACHINE HAVING A WORK SUPPORTING BASE, A ROTARY DRIVE SHAFT JOURNALLED LONGITUDINALLY IN SAID BASE, A HOOK SHAFT MOUNTED IN SAID BASE, GEARS CONNECTING SAID DRIVE SHAFT TO SAID HOOK SHAFT, A ROTARY CAM SHAFT MOUNTED PARALLEL TO SAID HOOK SHAFT, A SPROCKET ON THE CAM SHAFT, A GEAR ADJUSTABLY CARRIED BY THE DRIVE SHAFT, A BRACKET, A JOURNAL BEARING CARRIED BY SAID BRACKET SEPARATE AND APART FROM THE HOOK SHAFT MOUNTING AND MOUNTED ON THE BASE, MEANS FOR ADJUSTING SAID BRACKET LONGITUDINALLY OF THE DRIVE SHAFT, AN INDEPENDENT SHAFT REVOLVABLY MOUNTED IN THE JOURNAL BEARING, A GEAR ON ONE END OF THE LAST NAMED SHAFT IN ENGAGEMENT WITH THE ADJUSTABLE GEAR ON THE DRIVE SHAFT, A SPROCKET ON THE OPPOSITE END OF THE INDEPENDENT SHAFT AND A DRIVE BELT CONNECTING SAID LAST NAMED SPROCKET WITH THE SPROCKET ON THE CAM 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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |