US4478263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log splitter
Assignee: Individual
•
Filing: 1983-03-23
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Granted: 1984-10-23
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Expires: 2003-03-23
Abstract
Abstract A mobile self-contained wood processing machine to be used for the processing of logs into specific lengths and then splitting the lengths into individual pieces suitable for use as firewood or the like. The individual pieces are retained in a unit bin until a desired quantity has been processed. Once the desired quantity is processed the unit bin is operated to release the stored pieces to a handling cart or to packaging.
Inventors
- 👤 James L. Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:46
CPC Classifications
B; B27; B27L; B27L7/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
173 words
A wood processing machine comprising an endless conveyor adapted to receive logs to be cut into log segments; switch means to stop the endless conveyor when a log has been positioned to be cut into log segments; a trough receiving a log to be cut from the conveyor, said trough including, spaced apart fingers forming a portion of a log supporting surface of the trough; saw means arranged to simultaneously provide a plurality of cuts through a log in the trough and to move between said fingers, whereby a plurality of log segments are formed in the trough; a receiving chamber; means for pivoting said fingers to simultaneously discharge said plurality of cut log segments from the trough to the receiving chamber with said log segments in axially aligned relationship in the receiving chamber; a log segment splitter aligned with the receiving chamber; and ram means aligned with the receiving chamber and the log segment splitter, whereby operation of the ram means will force the log segments sequentially through the log segment splitter.
Claim 2
Dependent Claim
173 words
A wood processing machine comprising an endless conveyor adapted to receive logs to be cut into log segments; switch means to stop the endless conveyor when a log has been positioned to be cut into log segments; a trough receiving a log to be cut from the conveyor, said trough including, spaced apart fingers forming a portion of a log supporting surface of the trough; saw means arranged to simultaneously provide a plurality of cuts through a log in the trough and to move between said fingers, whereby a plurality of log segments are formed in the trough; a receiving chamber; means for pivoting said fingers to simultaneously discharge said plurality of cut log segments from the trough to the receiving chamber with said log segments in axially aligned relationship in the receiving chamber; a log segment splitter aligned with the receiving chamber; and ram means aligned with the receiving chamber and the log segment splitter, whereby operation of the ram means will force the log segments sequentially through the log segment splitter.
Claim 3
Dependent Claim
115 words
A wood processing machine as in claim 1, wherein the log segment splitter comprises a splitter chamber having, top bottom and side walls and an open entrance end and an open discharge end; a plurality of pairs, of parallel, spaced apart cutter knives fixed in the splitter chamber, with cutter knives of each succeeding pair of knives being further spaced apart from the knives of the preceding pair and extending transverse to, immediately behind and engaging the proceeding pair in a grid pattern when viewed from the entrance and discharge ends, whereby cutting edges of each succeeding pair of knives are sequentially engaged by an end of a log segment forced through the splitter chamber.
Claim 4
Dependent Claim
48 words
A wood processing machine as in claim 2, wherein an inner surface of each knife is flat and an outer surface is arcuately curved away from the cutting edge whereby split pieces of log segments are directed outwardly as the log segments are forced through the splitter chamber.
Claim 5
Dependent Claim
29 words
A wood processor as in claim 3, further including a hopper at the discharge end of the splitter chamber said hopper having discharge door means at the bottom thereof.
Claim 6
Dependent Claim
118 words
A splitter chamber for wood processing machines including top, bottom and side walls an open entrance end and an open discharge end; a plurality of pairs of parallel spaced apart cutter knives fixed within the top, bottom and side walls, and with cutting edges of the knives of each succeeding pair of knives being further spaced apart from the knives of the preceding pair and extending transverse to, immediately behind the preceeding pair to form a grid pattern when viewed from the entrance and discharge ends, whereby cutting edges of each succeeding pair of knives are sequentially engaged by an end of a log segment forced through the splitter chamber from the entrance end to the discharge end.
Claim 7
Dependent Claim
118 words
A splitter chamber for wood processing machines including top, bottom and side walls an open entrance end and an open discharge end; a plurality of pairs of parallel spaced apart cutter knives fixed within the top, bottom and side walls, and with cutting edges of the knives of each succeeding pair of knives being further spaced apart from the knives of the preceding pair and extending transverse to, immediately behind the preceeding pair to form a grid pattern when viewed from the entrance and discharge ends, whereby cutting edges of each succeeding pair of knives are sequentially engaged by an end of a log segment forced through the splitter chamber from the entrance end to the discharge end.
Claim 8
Dependent Claim
51 words
A splitter chamber for wood processing machines as in claim 5, wherein an inner surface of each knife is flat and an outer surface is arcuately curved away from the cutting edge whereby split pieces of log segments are directed outwardly as the log segments are forced through the splitter chamber.
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) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |