US3138869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pruning device
Assignee: Individual
•
Filing: 1962-08-06
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Granted: 1964-06-30
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Expires: 1982-08-06
Abstract
No abstract record available.
Inventors
- 👤 Osmo E Parhaniemi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/02; A01G3/025; A01G3/0255
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A PRUNING DEVICE COMPRISING AN ELONGATED SHAFT, A PULL-ROD SLIDABLY POSITIONED UPON AND ALONG SAID SHAFT, SUBSTANTIALLY ADJACENT ONE END OF EACH OF SAID PULL-ROD AND SAID SHAFT MEANS FOR ACTUATING SAID PULL-ROD, A CONNECTOR CARRIED BY THE OTHER END OF SAID PULL-ROD, A PAIR OF OUTWARDLY EXTENDING LINKAGE RODS PIVOTALLY CONNECTED AT ONE OF THEIR ENDS ON OPPOSITE SIDES OF SAID CONNECTOR, A BLADE ARM PIVOTALLY CONNECTED ADJACENT ONE END THEREOF TO THE OTHER END OF EACH LINKAGE ROD, LUGS EXTENDING FROM OPPOSITE SIDES OF SAID SHAFT ADJACENT ITS OTHER END, AN INTEGRAL CUTTING BLADE HEAD EXTENDING AT AN OBTUSE ANGLE TO EACH OF SAID BLADE ARMS, PIVOTS CONNECTING SAID BLADE ARMS AT THEIR JUNCTION WITH SAID BLADE HEADS TO SAID LUGS; BLADES CONNECTED TO SAID BLADE HEADS, AND A TENSION SPRING SECURED BETWEEN THE ENDS OF SAID BLADE ARMS BEYOND THEIR PIVOTAL CONNECTIONS TO SAID LINKAGE RODS NORMALLY BIASING SAID BLADE HEADS AND HENCE SAID BLADES TO OPEN POSITION.
Claim 2
Dependent Claim
161 words
A PRUNING DEVICE COMPRISING AN ELONGATED SHAFT, A PULL-ROD SLIDABLY POSITIONED UPON AND ALONG SAID SHAFT, SUBSTANTIALLY ADJACENT ONE END OF EACH OF SAID PULL-ROD AND SAID SHAFT MEANS FOR ACTUATING SAID PULL-ROD, A CONNECTOR CARRIED BY THE OTHER END OF SAID PULL-ROD, A PAIR OF OUTWARDLY EXTENDING LINKAGE RODS PIVOTALLY CONNECTED AT ONE OF THEIR ENDS ON OPPOSITE SIDES OF SAID CONNECTOR, A BLADE ARM PIVOTALLY CONNECTED ADJACENT ONE END THEREOF TO THE OTHER END OF EACH LINKAGE ROD, LUGS EXTENDING FROM OPPOSITE SIDES OF SAID SHAFT ADJACENT ITS OTHER END, AN INTEGRAL CUTTING BLADE HEAD EXTENDING AT AN OBTUSE ANGLE TO EACH OF SAID BLADE ARMS, PIVOTS CONNECTING SAID BLADE ARMS AT THEIR JUNCTION WITH SAID BLADE HEADS TO SAID LUGS; BLADES CONNECTED TO SAID BLADE HEADS, AND A TENSION SPRING SECURED BETWEEN THE ENDS OF SAID BLADE ARMS BEYOND THEIR PIVOTAL CONNECTIONS TO SAID LINKAGE RODS NORMALLY BIASING SAID BLADE HEADS AND HENCE SAID BLADES TO OPEN POSITION.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |