US3735786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for delimbing and loading full-length trees
Assignee: Individual
•
Filing: 1971-06-15
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Granted: 1973-05-29
•
Expires: 1991-06-15
Abstract
Abstract A debrancher and forwarder is described wherein a sliding boom debranching apparatus with clamping devices at the end of the boom are provided at the end of a loading crane. A vehicle can also be provided with a buncer in which a sling is subtended between picoting closing arms and the sling passes over an expanding and retracting piston and cylinder arrangement for tightening or slackening the sling.
Inventors
- 👤 R Vit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:37
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/095
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
A delimbing apparatus including a vehicle, a crane mounted on the vehicle, means at the free end of the crane for gripping a felled tree, said means being adapted for movement relative to the crane, said means including a carriage, a boom slidably mounted through the carriage parallel to a tree so gripped, delimbing means mounted to the boom adapted to engage the tree while it is engaged by said tree-gripping means, and means for slidably moving said boom and delimbing means longitudinally of said tree, while said tree is being gripped by said gripping means, whereby the branches are severed from the tree.
Claim 2
Dependent Claim
104 words
A delimbing apparatus including a vehicle, a crane mounted on the vehicle, means at the free end of the crane for gripping a felled tree, said means being adapted for movement relative to the crane, said means including a carriage, a boom slidably mounted through the carriage parallel to a tree so gripped, delimbing means mounted to the boom adapted to engage the tree while it is engaged by said tree-gripping means, and means for slidably moving said boom and delimbing means longitudinally of said tree, while said tree is being gripped by said gripping means, whereby the branches are severed from the tree.
Claim 3
Dependent Claim
26 words
An apparatus as defined in claim 1 wherein the carriage is adapted to move at least two planes normal to each other relative to the crane.
Claim 4
Dependent Claim
43 words
An apparatus as defined in claim 1 whereby the delimbing means include clamping devices at each end of the boom and each clamping device has a fixed jaw and a pivoting jaw, with debranching knives mounted to the inner edges of the jaws.
Claim 5
Dependent Claim
47 words
An apparatus as defined in claim 3 whereby the pivoting jaws are normally held in a closed position against the fixed jaws by means of tension springs mounted on the boom and cable means are provided for opening the pivoting jaws against the action of the springs.
Claim 6
Dependent Claim
51 words
An apparatus as defined in claim 4 wherein said cable extends along the boom and passes over or under a pair of opposed pulleys up over a third pulley which is movable to and from the pairs of opposed pulleys for effectively shortening the cable so as to open the pulleys.
Claim 7
Dependent Claim
71 words
An apparatus as defined in claim 1 wherein there is a guillotine knife provided at the end of the boom and a cable anchored to one end of the boom passes over the spring-operated knife below a guide pulley and over a second pulley adapted for movement to and from the guide pulley to effectively shorten the length of the cable so as to actuate the movement of the guillotine knife.
Claim 8
Dependent Claim
49 words
An apparatus as defined in claim 1 wherein the boom is movable in the carriage by means of cables passing through the carriage towards a position on the crane, whereby the cables are alternately lengthened and shortened by means of reverse block and tackle means operated by hydraulic motors.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |