US3154120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for portable chain saws
Assignee: Individual
•
Filing: 1962-12-03
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Granted: 1964-10-27
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Rutherford H Lesher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:08
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/0083; Y; Y10; Y10T; Y10T83/00; Y10T83/687; Y10T83/6905; Y10T83/691; Y10T83/6915; Y10T83/707; Y10T83/7101; Y10T83/7114; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
AN ANGLE-GUIDE ATTACHMENT FOR A PORTABLE CHAIN SAW, THE SAW INCLUDING A SUPPORTING HOUSING AND AN ELONGATED SUPPORT FOR THE SAW CHAIN PROJECTING FROM AND RIGID WITH THE HOUSING; THE ATTACHMENT COMPRISING AN ELONGATED ANGLE BAR EXTENDING TRANSVERSELY OF THE SAW TO ONE SIDE OF THE CHAIN SUPPORT AND ADAPTED TO SEAT OVER A LONGITUDINAL CORNER OF A PIECE OF WORK TO BE CUT, SAID BAR BEING INITIALLY DISPOSED BELOW THE WORK ENGAGING EDGE OF THE SAW CHAIN, AND MEANS CONNECTING THE BAR TO THE HOUSING AND INCLUDING AN ARM UNIT EXTENDING FROM THE BAR INTERMEDIATE ITS ENDS TO THE ADJACENT SIDE OF THE SAW HOUSING; A SHAFT RIGID WITH THE HOUSING AND SUPPORT ADJACENT THE HOUSING AND PROJECTING LATERALLY FROM SAID ONE SIDE THEREOF AND PARALLEL TO THE BAR AND ON WHICH THE ARM UNIT AT ONE END IS PIVOTED, AND PIVOT MEANS PARALLEL TO THE SHAFT AND BAR CONNECTING THE OTHER END OF THE ARM UNIT TO THE BAR; A TORSION SPRING ACTING ON THE ARM UNIT TO YIELDABLY SWING THE SAME AND THE BAR REARWARDLY ABOUT THE SHAFT AS AN AXIS, AND STOP MEANS INITIALLY PREVENTING SUCH SWINGING MOVEMENT.
Claim 2
Dependent Claim
192 words
AN ANGLE-GUIDE ATTACHMENT FOR A PORTABLE CHAIN SAW, THE SAW INCLUDING A SUPPORTING HOUSING AND AN ELONGATED SUPPORT FOR THE SAW CHAIN PROJECTING FROM AND RIGID WITH THE HOUSING; THE ATTACHMENT COMPRISING AN ELONGATED ANGLE BAR EXTENDING TRANSVERSELY OF THE SAW TO ONE SIDE OF THE CHAIN SUPPORT AND ADAPTED TO SEAT OVER A LONGITUDINAL CORNER OF A PIECE OF WORK TO BE CUT, SAID BAR BEING INITIALLY DISPOSED BELOW THE WORK ENGAGING EDGE OF THE SAW CHAIN, AND MEANS CONNECTING THE BAR TO THE HOUSING AND INCLUDING AN ARM UNIT EXTENDING FROM THE BAR INTERMEDIATE ITS ENDS TO THE ADJACENT SIDE OF THE SAW HOUSING; A SHAFT RIGID WITH THE HOUSING AND SUPPORT ADJACENT THE HOUSING AND PROJECTING LATERALLY FROM SAID ONE SIDE THEREOF AND PARALLEL TO THE BAR AND ON WHICH THE ARM UNIT AT ONE END IS PIVOTED, AND PIVOT MEANS PARALLEL TO THE SHAFT AND BAR CONNECTING THE OTHER END OF THE ARM UNIT TO THE BAR; A TORSION SPRING ACTING ON THE ARM UNIT TO YIELDABLY SWING THE SAME AND THE BAR REARWARDLY ABOUT THE SHAFT AS AN AXIS, AND STOP MEANS INITIALLY PREVENTING SUCH SWINGING MOVEMENT.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |