Improvement in a tree pruning saw
Abstract
Abstract AN IMPROVEMENT IN A TREE OR SHRUB BRANCH PRUNING SAW APPARATUS HAVING A MOTOR PROVIDING MOTIVE POWER FOR A RECIPROCATING SAW BLADE, AND COMPRISING A SAW BLADE RECIPROCABLY CARRIED ON THE END OF A TUBULAR POLE OPPOSITE ITS OTHER END AT WHERE THE POWER SOURCE IS CARRIED, AND A VNOTCHED MEMBER PIVOTALLY MOUNTED ON A LINK WHICH IN TURN IS PIVOTALLY MOUNTED TO THE END OF THE POLE. MEANS SUCH AS AN AXIALLY SLIDABLE HANDLE, IS PROVIDED ALONG THE POLE''S LENGTH AND IS PIVOTALLY CONNECTED TO THE V-NOTCHED MEMBER. MANUAL TO-AND-FROM (AXIAL) MOTION PROVIDED THE SLIDING HANDLE PIVOTS A SELECTED BRANCH HELD IN THE VNOTCHED MEMBER THROUGH OR ACROSS THE PATH OF THE RECIPROCATING SAW BLADE. STOP MEANS ARE PROVIDED FOR LIMITING THE ARC OF MOVEMENT OF THE V-NOTCHED MEMBER.
Inventors
- 👤 D Fraser
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |