Patent SU620487A1 successfully refreshed from Google Patents.
Patent US5163489A successfully refreshed from Google Patents.
US5163489A
Expired / Lapsed
US
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Timber harvester
Assignee: Individual
•
Filing: 1991-11-27
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Granted: 1992-11-17
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Expires: 2011-11-27
Abstract
Abstract A timber harvester disclosed includes a frame (1), two feed tracks (5) jointed opposite one another, a front stripping blade (20), and a rear stripping blade (16). A frame (4) of the feed track (5) is carried on jointed trapezoid arms (2,3). A rear stripping blade (16) is located on the frame (4) of one of the feed tracks (5) and is jointed essentially on the line of the compressive force between the feed track (5) and a tree (7), when seen from the direction of the timber feed.
Inventors
- 👤 Lauri K. Ketonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:41
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/095; A01G23/097
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A timber harvester which consists of a frame, a feeding device, a front stripping blade, a rear stripping blade and in which the feeding device is carried on joined trapezoidal arms and the rear stripping blade is attached to the feeding device essentially in line with the compressive force between the feeding device and a tree, when seen from the direction of the tree feed, characterized in that a saw case is attached to the feeding device and the rear stripping blade and a cylinder for moving the rear stripping blade are mounted in the saw case.
Claim 2
Dependent Claim
97 words
A timber harvester which consists of a frame, a feeding device, a front stripping blade, a rear stripping blade and in which the feeding device is carried on joined trapezoidal arms and the rear stripping blade is attached to the feeding device essentially in line with the compressive force between the feeding device and a tree, when seen from the direction of the tree feed, characterized in that a saw case is attached to the feeding device and the rear stripping blade and a cylinder for moving the rear stripping blade are mounted in the saw case.
Claim 3
Dependent Claim
53 words
A timber harvester in accordance with claim 1 characterized in that the rear stripping blade is pivotable about a joint point, and the joint point is located behind the feeding device and 5-15 cm outward from a point of contact of the feeding device and the tree, when seen from the feed direction.
Claim 4
Dependent Claim
50 words
A timber harvester in accordance with claims 1 or 2 characterized in that the rear blade is given a curved form along its length, in such a way that the greatest curve is located close to the joint point, and its curvature decreases along its length from the joint point.
References Cited (Backward Citations)
US3797541A
Cited
US4194542A
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US4239067A
Cited
CA1066593A
Cited
US4515192A
Cited
US4881582A
Cited
US4800936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-17 | 1996-05-18 | 1996-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-17 | 2000-05-18 | 2000-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-17 | 2004-05-18 | 2004-11-17 | $7700.00 | Window Closed / Lapsed |