Arrangement at an engine chain saw for mounting a circular cutting tool to the frame of chain saw
Abstract
Abstract THERE IS PROVIDED A DEVICE IN MOTOR SAWS BY WHICH A CIRCULAR SHAPED CUTTING TOOL CAN BE ATTACHED TO THE FRAME OF SAID SAW, SAID DEVICE INCLUDING AN ARM WHICH PROJECTS OUTWARDLY FROM THE FRAME AND WHICH CARRIES A SHAFT DRIVEN BY THE MOTOR AND FORMING THE ROTARY SHAFT OF THE CUTTING TOOL, AND IN WHICH THE ROTARY SHAFT OF THE JOURNALED PERPENDICULARLY TO THE ARM IN A BEARING CAPABLE OF BEING TURNED ROUND THE LONGITUDINAL DIRECTION OF THE ARM, AND SUPPLIED WITH A LOCKING DEVICE, AND WHEREIN THE ROTARY SHAFT CAN BE ADJUSTED TO AND LOCKED IN ANY ANGULAR POSITION, IN A PLANE THROUGH THE BEARING PERPENDICULAR TO THE ARM, AND WHEREIN A COVER PLATE ARRANGED CONCENTRICALLY TO THE ROTARY SHAFT AND AT LEAST PARTLY ENCLOSING THE TOOL IS CAPABLE OF BEING ROTATED PERPENDICULARLY TO THE ROTARY SHAFT AND IS PROVIDED WITH A LOCKING DEVICE.
Inventors
- 👤 Ulf Vilhelm Naslund
Bibliographic Details
Claims Analysis
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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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |