Patent US5734637A successfully refreshed from Google Patents.
Patent US3195487A successfully refreshed from Google Patents.
US3195487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism for feed dogs of sewing machines
Assignee: GM Pfaff AG
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Filing: 1963-08-08
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Granted: 1965-07-20
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Expires: 1983-08-08
Abstract
No abstract record available.
Inventors
- 👤 Reeber Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:02
CPC Classifications
D; D05; D05B; D05B27/00; D05B27/22; D05B27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A SEWING MACHINE OF THE TYPE HAVING A FEED DOG, A FEED BAR SHAFT AND A LOWER DRIVE SHAFT FOR DRIVING THE LOOPER AND DRIVE MEANS CONNECTED BETWEEN SAID DRIVE SHAFTS FOR EFFECTING MEANS CONNECTED BETWEEN SAID DRIVE DOG, SAID DRIVE MEANS INCLUDING A FEED BAR SUPPORTING SAID FEED DOG AND OPERATIVELY CONNECTED TO SAID FEED BAR DRIVE SHAFT, AN ECCENTRIC BAR PIVOTALLY CONNECTED AT ONE END TO SAID FEED BAR DRIVE SHAFT AND HAVING TWO ECCENTRIC ENGAGING JAWS AT THE OTHER END, AN ECCENTRIC MEMBER MOUNTED ON THE FREE END OF SAID LOWER DRIVE SHAFT, SAID ECCENTRIC BAR HAVING A BRIDGE MEMBER INTERMEDIATE SAID TWO JAWS, SAID BRIDGE MEMBER HAVING A STUD EXTENDING SUBSTANTIALLY COAXIALLY WITH THE AXIS OF SAID LOWER DRIVE SHAFT AND A SLIDING BLOCK ROTATABLY MOUNTED ON SAID STUD, AND A SLOTTED MEMBER MEANS ROTATABLY MOUNTING SAID SLOTTED MEMBER ON SAID MACHINE, ADJUSTING MEANS CONNECTED TO SAID SLOTTED MEMBER FOR ADJUSTMENT THEREOF INTO DIFFERENT POSITIONS OF OBLIQUENESS, SAID SLOTTED MEMBER RECEIVING
Claim 2
Dependent Claim
165 words
A SEWING MACHINE OF THE TYPE HAVING A FEED DOG, A FEED BAR SHAFT AND A LOWER DRIVE SHAFT FOR DRIVING THE LOOPER AND DRIVE MEANS CONNECTED BETWEEN SAID DRIVE SHAFTS FOR EFFECTING MEANS CONNECTED BETWEEN SAID DRIVE DOG, SAID DRIVE MEANS INCLUDING A FEED BAR SUPPORTING SAID FEED DOG AND OPERATIVELY CONNECTED TO SAID FEED BAR DRIVE SHAFT, AN ECCENTRIC BAR PIVOTALLY CONNECTED AT ONE END TO SAID FEED BAR DRIVE SHAFT AND HAVING TWO ECCENTRIC ENGAGING JAWS AT THE OTHER END, AN ECCENTRIC MEMBER MOUNTED ON THE FREE END OF SAID LOWER DRIVE SHAFT, SAID ECCENTRIC BAR HAVING A BRIDGE MEMBER INTERMEDIATE SAID TWO JAWS, SAID BRIDGE MEMBER HAVING A STUD EXTENDING SUBSTANTIALLY COAXIALLY WITH THE AXIS OF SAID LOWER DRIVE SHAFT AND A SLIDING BLOCK ROTATABLY MOUNTED ON SAID STUD, AND A SLOTTED MEMBER MEANS ROTATABLY MOUNTING SAID SLOTTED MEMBER ON SAID MACHINE, ADJUSTING MEANS CONNECTED TO SAID SLOTTED MEMBER FOR ADJUSTMENT THEREOF INTO DIFFERENT POSITIONS OF OBLIQUENESS, SAID SLOTTED MEMBER RECEIVING
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |