US4117755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log transport and sawing system
Assignee: Weyerhaeuser Co
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Filing: 1977-01-13
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Granted: 1978-10-03
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Expires: 1997-01-13
Abstract
Abstract A log sawing and transport system for relatively small logs has an infeed and loading station where logs are positioned in a centering device for aligning the logs with respect to the saws. Once the log is properly aligned for axial movement, a set of end dogs are actuated to hold the log in its prealigned position for transport. The dogs are mounted within axially movable carriage units that travel the length of the system serving to transport the log axially in a straight line. At the sawing station a plurality of angularly arranged saws are disposed to divide the traveling log into a plurality of elongated sector-shaped pieces. At least one selected saw may be adjustable with respect to the other saws in order to set angles for the sector-shaped pieces. Once the log has been divided into a plurality of sector-shaped pieces, an outfeed device collects the elongated sector-shaped pieces and transports them out of the system.
Inventors
- 👤 Earl Dean Hasenwinkle
- 👤 Frank Wislocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:11
CPC Classifications
B; B27; B27B; B27B1/00; B27B1/005; B27B29/00; B27B29/08; B27B7/00; B27B7/02; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6492; Y10T83/6499; Y10T83/6508; Y10T83/6515; Y10T83/6536; Y10T83/6572; Y10T83/6584; Y10T83/6587; Y10T83/6588; Y10T83/6608; Y10T83/6622; Y10T83/6625; Y10T83/6627
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
214 words
An apparatus having an infeed end and an outfeed end for axially transporting logs through a work station, comprising: means for positioning a log upstream from said work station and placing it in an aligned orientation where its center line is substantially in line with the axial path it will travel when being transported through said work station, means for dogging and holding said log in its aligned orientation at a plurality of locations circumferentially spaced on each cross-sectional end of said log with said locations being substantially opposed and coaxial at opposite ends of said log and spaced outwardly from said center line, said dogging means including a plurality of dogging members extending inwardly toward the center line but terminating outwardly therefrom, carriage means angularly spaced from one another for supporting said dogging and holding means as a log is transported axially through said work station from said infeed end to said outfeed end, means at said work station for working on a traveling log at locations angularly spaced between said dogging and holding means, means at said outfeed end for releasing the worked-upon log from said dogging and holding means, and means for driving said carriage means axially from said infeed end to said outfeed end and back to said infeed end.
Claim 2
Independent Claim
214 words
An apparatus having an infeed end and an outfeed end for axially transporting logs through a work station, comprising: means for positioning a log upstream from said work station and placing it in an aligned orientation where its center line is substantially in line with the axial path it will travel when being transported through said work station, means for dogging and holding said log in its aligned orientation at a plurality of locations circumferentially spaced on each cross-sectional end of said log with said locations being substantially opposed and coaxial at opposite ends of said log and spaced outwardly from said center line, said dogging means including a plurality of dogging members extending inwardly toward the center line but terminating outwardly therefrom, carriage means angularly spaced from one another for supporting said dogging and holding means as a log is transported axially through said work station from said infeed end to said outfeed end, means at said work station for working on a traveling log at locations angularly spaced between said dogging and holding means, means at said outfeed end for releasing the worked-upon log from said dogging and holding means, and means for driving said carriage means axially from said infeed end to said outfeed end and back to said infeed end.
Claim 3
Dependent Claim
21 words
The apparatus as in claim 1 including means for sequentially loading a log into said positioning means at said infeed end.
Claim 4
Dependent Claim
24 words
The apparatus as in claim 1 including means at said work station for cutting said log into a plurality of individual elongated sector-shaped pieces.
Claim 5
Dependent Claim
28 words
The apparatus as in claim 3 including means at said outfeed end for collecting said sector-shaped pieces after said pieces are released from said dogging and holding means.
Claim 6
Dependent Claim
38 words
The apparatus as in claim 1 including means associated with said carriage means for causing said coaxial locations on the ends of said log to move divergently with respect to an axial center line through said work station.
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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) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |