Track chain for tracked vehicles
Abstract
Abstract THE PRESENT INVENTION RELATES TO A TRACK CHAIN FOR TRACKED VEHICLES, SAID CHAIN CONSISTING OF TRACK MEMBERS THAT ARE HINGED TO EACH OTHER. THE OBJECT OF THE INVENTION IS TO IMPROVE THE TRANSMISSION OF MOTIVE POWER FROM THE VEHICLE TO THE SURFACE TRAVELLED ON, ESPECIALLY LOOSE SURFACES SUCH AS SNOW, OR IN WATER. THE INVENTION IS MAINLY CHARACTERIZED BY BLADES PROVIDED ON THE FREE ENDS OF EACH TRACK MEMBER. THESE BLADES HAVE A LONGITUDINAL AXIS ESSENTIALLY PERPENDICULAR TO THE DIRECTION OF MOTION OF THE TRACK CHAIN AND ESSENTIALLY PARALLEL TO A PLANE THROUGH THE JOINT PARTS OF EACH TRACK MEMBER. THE BLADES ARE ALSO CURVED IN A PLANE PERPENDICULAR TO ITS LONGITUDINAL AXIS, THE CURVATURE BEING, LOOKING AT THE LOWER PART OF THE TRACK CHAIN, ESSENTIALLY CONVEX IN A BASICALLY FORWARD, UPWARD DIRECTION AS SEEN IN THE NORMAL DIRECTION OF MOTION OF THE TRACKED VEHICLE, AND CONCAVE IN A BASICALLY REARWARD, DOWNWARD DIRECTION. A TANGENT PLANE TO THE BLADE''S CURVED SURFACE, NEAR THE BLADE''S FORWARD EDGE, FORMS AN ANGLE A GREATER THAN 90* WITH THE NORMAL DIRECTION OF MOTION OF THE TRACKED VEHICLE.
Inventors
- 👤 B Andersson
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |