Patent US4057138A successfully refreshed from Google Patents.
US4057138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for routing logs
Assignee: WISCONSIN BRIDGE AND IRON Co
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Filing: 1976-02-05
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Granted: 1977-11-08
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Expires: 1996-02-05
Abstract
Abstract An apparatus for routing logs to various locations in a sawmill. The logs are conveyed in end-to-end relation on a conveyor and pass beneath a rotatable log kicker unit having a series of radially extending arms which, when rotated, will kick the log laterally to either side of the conveyor for delivery to sawing operations. Located at the downstream end of the log kicker unit is a movable gate disposed to be engaged by the end of the log as it is moved laterally by the log kicker to align the laterally discharged logs. By moving the gate out of the conveying path, the log can be conveyed through the log kicker unit to a third delivery location.
Inventors
- 👤 Edward Andrew Grebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:51
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/84; B65G47/846
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
180 words
An apparatus for routing logs to various locations, comprising a conveyor to convey logs in an end-to-end relation, a rotatable log kicker disposed above the conveyor and mounted for rotation about an axis disposed generally parallel to the direction of travel of the conveyor, said log kicker having a plurality of outwardly extending arms disposed to engage the log on the conveyor as the kicker is rotated in either direction to move the log laterally to either side of the conveyor, reversible drive means operably connected to the log kicker and operable to rotate the arms through an arc of travel generally equal to the arc between adjacent arms, means operably connected to the drive means for operating said drive means at a first speed through a first portion of said arc of travel and for operating said drive means at a second speed during a second position of said arc of travel, said second speed being slower than said first speed, and brake means for stopping rotation of said arms when said arms have completed travel through said arc.
Claim 2
Independent Claim
180 words
An apparatus for routing logs to various locations, comprising a conveyor to convey logs in an end-to-end relation, a rotatable log kicker disposed above the conveyor and mounted for rotation about an axis disposed generally parallel to the direction of travel of the conveyor, said log kicker having a plurality of outwardly extending arms disposed to engage the log on the conveyor as the kicker is rotated in either direction to move the log laterally to either side of the conveyor, reversible drive means operably connected to the log kicker and operable to rotate the arms through an arc of travel generally equal to the arc between adjacent arms, means operably connected to the drive means for operating said drive means at a first speed through a first portion of said arc of travel and for operating said drive means at a second speed during a second position of said arc of travel, said second speed being slower than said first speed, and brake means for stopping rotation of said arms when said arms have completed travel through said arc.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1, wherein at least one side of each arm is generally curved and terminates in a pointed tip.
Claim 4
Dependent Claim
51 words
The apparatus of claim 1, wherein said log kicker includes a shaft located generally parallel to the direction of travel of said conveyor and said log kicker includes a plurality of groups of arms with each group spaced longitudinally along said shaft, each group including at least three circumferentially spaced arms.
Claim 5
Dependent Claim
56 words
The apparatus of claim 1, and including a second conveyor located laterally to one side of said first conveyor for receiving logs discharged in one direction from said first conveyor, and a third conveyor located laterally to the other side of said first conveyor for receiving logs discharged in the other direction from said first conveyor.
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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |