Patent US4829865A successfully refreshed from Google Patents.
US4829865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firewood processor
Assignee: UNITED STATES WOOD Inc FORMERLY NUNNERY WOOD PROCESSOR Co
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Filing: 1988-10-31
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Granted: 1989-05-16
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Expires: 2008-10-31
Abstract
Abstract A wood processor is disclosed for cutting a log into a series of shorter lengths and subsequently splitting the shorter lengths into individual pieces of firewood or the like. The processor includes a carriage for receiving the log. Clamps engage the log from both sides to secure it in the carriage which advances the log into contact with a plurality of parallel rotating saws. After the carriage is retracted a pusher rod moves the cut log pieces along an axis onto a plurality of cradle members, one cradle supporting each log section. The cradle members are tilted to dump the log sections alternately onto opposite sides of the axis of log movement. The logs dumped from the cradles are fed to a plurality of individual hydraulically operated log splitters.
Inventors
- 👤 Ermal R. Nunnery
- 👤 Elmer C. Lusk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:31
CPC Classifications
B; B27; B27B; B27B31/00; B27B31/08; B27B29/00; B27B5/00; B27B5/16; B27B5/22; B27B5/228; B27L; B27L7/00; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/654; Y10T83/6584; Y10T83/6587; Y10T83/6588; Y10T83/66; Y10T83/6608; Y10T83/6614; Y10T83/6616; Y10T83/748; Y10T83/7487; Y10T83/7547
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
106 words
In a log processor, means for simultaneously sawing a log along a plurality of spaced parallel cuts to cut said log into log sections of predetermined length, said means comprising: a saw assembly, said saw assembly comprising a plurality of rotary circular saw blades; shaft means for supporting and rotating said saw blades along a common stationary axis; a log receiving carriage adapted to receive a log; clamp means carried by said carriage for clamping said log from opposite sides onto said carriage; means for advancing said carriage towards said saw blades; and means for returning said carriage to a position remote from said saw blades.
Claim 2
Dependent Claim
106 words
In a log processor, means for simultaneously sawing a log along a plurality of spaced parallel cuts to cut said log into log sections of predetermined length, said means comprising: a saw assembly, said saw assembly comprising a plurality of rotary circular saw blades; shaft means for supporting and rotating said saw blades along a common stationary axis; a log receiving carriage adapted to receive a log; clamp means carried by said carriage for clamping said log from opposite sides onto said carriage; means for advancing said carriage towards said saw blades; and means for returning said carriage to a position remote from said saw blades.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1 further comprising a removable housing enclosing said saw blades, said housing having an opening adjacent to said carriage to permit movement of said log toward and away from said saw blades.
Claim 4
Dependent Claim
54 words
The apparatus of claim 1 in which the means for advancing said carriage comprises a hydraulic cylinder and ram, and means for varying the flow rate and pressure of a hydraulic pressure fluid to said ram to control the rate and force at which a log is advanced into contact with said saw blades.
Claim 5
Dependent Claim
48 words
The apparatus of claim 1 in which each of said saw blades is mounted upon a short section of shaft extending transversely of said saw blade, the shafts associated with each of said saw blades being in alignment with one another and removable sleeve couplings interconnecting said shafts.
Claim 6
Dependent Claim
27 words
The assembly of the apparatus of claim 4 further comprising a plurality of spaced arms, bearings carried by said arms, said shafts being journaled within said bearings
Claim 7
Dependent Claim
20 words
The apparatus of claim 1 in which said shaft means are directly driven by the output shaft of an engine.
Claim 8
Dependent Claim
18 words
The apparatus of claim 1 in which said carriage includes a longitudinal guide trough for receiving said log.
Claim 9
Dependent Claim
27 words
The apparatus of claim 7 in which said clamp means comprises a plurality of hydraulic clamp cylinders and rams disposed on opposite sides of said guide trough.
Claim 10
Dependent Claim
17 words
The apparatus of claim 8 in which said hydraulic clamp cylinders are pivotally mounted on said carriage.
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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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |