US3580306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile tree slasher
Assignee: INDUSTRIES TANGUAY Inc
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Filing: 1968-08-22
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Granted: 1971-05-25
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Expires: 1988-08-22
Abstract
Abstract An apparatus for cutting trees stems into logs comprising a horizontal conveyor transporting the stems, a first rotary saw for cutting the stems into a first set of logs having twice their final length, an upwardly sloping conveyor for lifting the said first set of logs and a second rotary saw for cutting the first logs in half while the logs are raised. A table for discharging logs from the horizontal conveyor to the upwardly sloping conveyor comprises a sweeping blade extending longitudinally of the transfer table and a hydraulic jack is used for moving the blade laterally across the table to move the logs thereon on the upwardly sloping conveyor. An apron is pivotally connected along one edge thereof to the discharge end of the transfer table and is downwardly inclined towards the sloping conveyor, springs biasing the apron upwardly and chains limiting the upward movement of the apron under the bias of the springs.
Inventors
- 👤 Jean Paul Tanguay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:48
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/10; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/21; Y10T83/2113; Y10T83/768; Y10T83/7684; Y10T83/7693
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
257 words
In a movable slasher for cutting tree stems into logs and having a base over which a first conveyor is mounted for moving tree stems onto a transfer table mounted on said base, level and in alignment with said first conveyor; the said table having an upstanding wall at the rear end thereof for arresting stems moved by the first conveyor; there being a saw between the end of the first conveyor and the transfer table to cut stems into logs and there being a second conveyor mounted on said base to extend laterally away from said transfer table to pick up and convey logs discharged from said transfer table And convey them away therefrom; the improvement in means on said transfer table for discharging logs thereon onto said second conveyor, said means comprising: a. a table top for said transfer table, having an arcuate cross section in a direction transverse to the direction of travel of said logs on said first conveyor and on said transfer table; b. an elongated blade mounted to extend lengthwise of said arcuate table top and to be swept thereacross to discharge logs standing on said table top into said second conveyor; and c. means to cause sweeping of said blade across said table top and including at least one swinging arm fixed at one end to said blade and mounted at the other end for pivotal motion about a horizontal axis above said table top, said sweeping means further including power means to cause swinging of said arm and blade.
Claim 2
Dependent Claim
257 words
In a movable slasher for cutting tree stems into logs and having a base over which a first conveyor is mounted for moving tree stems onto a transfer table mounted on said base, level and in alignment with said first conveyor; the said table having an upstanding wall at the rear end thereof for arresting stems moved by the first conveyor; there being a saw between the end of the first conveyor and the transfer table to cut stems into logs and there being a second conveyor mounted on said base to extend laterally away from said transfer table to pick up and convey logs discharged from said transfer table And convey them away therefrom; the improvement in means on said transfer table for discharging logs thereon onto said second conveyor, said means comprising: a. a table top for said transfer table, having an arcuate cross section in a direction transverse to the direction of travel of said logs on said first conveyor and on said transfer table; b. an elongated blade mounted to extend lengthwise of said arcuate table top and to be swept thereacross to discharge logs standing on said table top into said second conveyor; and c. means to cause sweeping of said blade across said table top and including at least one swinging arm fixed at one end to said blade and mounted at the other end for pivotal motion about a horizontal axis above said table top, said sweeping means further including power means to cause swinging of said arm and blade.
Claim 3
Dependent Claim
55 words
The improvement of claim 1 wherein said table top has a set of transverse apertures therethrough and gripping rollers mounted to project partially beyond said aperture and thereacross and mounted to rotate about axes transverse to said table whereby to urge said logs towards said upstanding arresting wall at the rear end of said table.
Claim 4
Dependent Claim
65 words
The improvement of claim 1 including at least one solid apron pivotally connected along one edge thereof to the discharge edge of said table top and downwardly inclined from said top to said second conveyor to guide logs from said transfer table to the said second conveyor, resilient means biasing said apron upwardly and means to limit upward movement of said apron under said bias.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |