Patent US3863848A successfully refreshed from Google Patents.
US3863848A
Expired / Lapsed
US
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Giant Tree Chopper
Assignee: Individual
•
Filing: 1974-01-02
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Granted: 1975-02-04
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Expires: 1994-01-02
Abstract
Abstract A vehicular equipment used particularly for destruction of trees and brush at construction sites by grinding them up into a mulch for easy disposal or other use; the equipment consisting of a vehicular chassis upon which a feeder trough is adaptable to receive cut-down trees, hydraulic breaker arms on opposite sides of the trough being suitable to break and fold the limbs of larger trees close to the tree trunk so the trunk can then be pulled by a cleated feeder wheel toward a rotating cutter wheel in which rotating knife blades chip away the tree, the chips being blown or thrown out by chip scoops mounted on the outer edge of the cutter wheel.
Inventors
- 👤 David J Mashuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:38
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
Mobile apparatus having a frame on which is carried a rotary cutter member for fragmentizing whole trees and tree trunks, wherein the improvement comprises a plurality of horizontal telescoping trough members for supporting the tree trunk longitudinally of said frame and in position to be fed endwise against said rotary cutter member, transversely spaced guide channels on said frame, and anti-friction rollers on said telescoping trough members cooperatively engaging in said channels whereby to movably support said trough members for movement longitudinally of said frame.
Claim 2
Dependent Claim
85 words
Mobile apparatus having a frame on which is carried a rotary cutter member for fragmentizing whole trees and tree trunks, wherein the improvement comprises a plurality of horizontal telescoping trough members for supporting the tree trunk longitudinally of said frame and in position to be fed endwise against said rotary cutter member, transversely spaced guide channels on said frame, and anti-friction rollers on said telescoping trough members cooperatively engaging in said channels whereby to movably support said trough members for movement longitudinally of said frame.
Claim 3
Dependent Claim
27 words
Mobile apparatus according to claim 1, further comprising motor means for moving said trough members to different relative longitudinal positions to support tree trunks of different lengths.
Claim 4
Dependent Claim
34 words
Mobile apparatus according to claim 2, wherein said motor means comprises a plurality of fluid pressure operated cylinders, at least one of which is interposed between said frame and each of said trough members.
Claim 5
Dependent Claim
37 words
Mobile apparatus according to claim 1, wherein each of said trough members carries thereon a unit activatable to confine and bend the branches of a tree toward said trough members at longitudinally spaced points along said frame.
Claim 6
Dependent Claim
106 words
Mobile apparatus according to claim 4, wherein each of said units comprises a pair of vertically oriented legs pivotally mounted on opposite sides respectively of a trough member in substantially transverse alignment with each other, motor means for selectively pivoting said legs concurrently apart or concurrently toward each other, an arm pivotally carried adjacent the upper end of each leg, and motor means carried by each leg for pivoting the corresponding said arm from a position in substantial alignment with the leg to an angular position in which said legs and arms cooperate to confine and bend the branches of a tree towards the trough members.
References Cited (Backward Citations)
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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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |