Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7806153 | Log debarking blade A debarking blade includes an elongate blade body having an attachment end, an opposed free end, and an arcuate concave inner edge surface extending between the opposing ends and adapted to face generally inwardly toward the rotational axis of the ring rotor. A deta... | 10/05/2010 |
| 7350548 | Swing arm assembly with replaceable insert for use with a debarker apparatus Apparatuses, systems, and methods for debarking logs are shown and described. The disclosed embodiments can be used for quickly and conveniently replacing contact surfaces, such as leading edges, of swing arm assemblies. Some disclosed embodiments include a swing ar... | 04/01/2008 |
| 7243693 | Log debarking machine and method A log debarking machine includes a rotary cutter head on a debarking arm. The arm is pivotally mounted on a car so that the head engages a rotating log. The weight of the arm is supported by an elastomer spring to improve debarking engagement between the head and th... | 07/17/2007 |
| 6776202 | Log peeling apparatus A log-peeling machine for removing bark from logs to simulate hand peeled logs. A log is held in position on a pair of movable log support frames, each having multiple adjustable log support and drive roller assemblies. An independent high-speed cutting head is mova... | 08/17/2004 |
| 6619345 | Arrangement for a debarking shaft The invention relates to a debarking shaft arrangement for a debarking machine (1). A number of rotatable debarking shafts (3) extending parallel to the advancing direction of the logs (2) are provided with a number of teeth (4) extending beyond the circu... | 09/16/2003 |
| 6615884 | Debarking shaft for a debarking machine The invention relates to a debarking shaft (3) for a debarking machine (1). The debarking shaft (3) has its teeth (4) designed as a number of annular tooth rims (20), each of said tooth rims comprising two or more releasably connected elements (21, 22), h... | 09/09/2003 |
| 6189583 | Apparatus for removing barks from a wood- and bark-containing log flow An apparatus for removing bark from a wood and bark containing log flow. The apparatus includes a number of bark separation units, each of the bark separation units comprising an aggregate of a toothed disc mounted on a first disc shaft and a smooth-surfa... | 02/20/2001 |
| 5893400 | Debarker head assembly An improved debarking apparatus, which includes a substantially, cylindrically shaped debarker head having a plurality of cutting blades to form its out peripheral surface, the debarker head mounted on a central shaft so that it may rotate freely on the s... | 04/13/1999 |
| 5458172 | Debarking and chipping apparatus A debarking and chipping apparatus mainly for coniferous trees, intended for the production and recovery of bark chips and chips for digestion from small trees (5) having a diameter of 4-20 cm. The apparatus is made up of a debarking unit (1), which debar... | 10/17/1995 |
| 5297601 | Triple head high speed log debarker A log debarker for debarking a lengthwise-moving log includes a pair of debarking subassemblies each including a pair of cylindrically concave, rotating cutter elements positioned angularly asymmetrically toward one side of the log and away from an opposi... | 03/29/1994 |
| 5247977 | High speed log debarker A log debarker for debarking a lengthwise-moving log includes a pair of debarking subassemblies each including a pair of cylindrically concave, rotating cutter elements juxtaposed on opposite sides of the log and formed to debark a quadrant of a log. Each... | 09/28/1993 |
| 5201353 | Reconfigurable debarker head A debarker head for use in a rotary tree debarking machine has a drive shaft with a polygonal cross sectional shape and a plurality of substantially similar cutting elements with mounting apertures corresponding to the drive shaft shape and sized for slip... | 04/13/1993 |
| 5168907 | Debarker head A Rosser type debarker head has a plurality of rounded, indexable cutting teeth spaced in patterns of repeated rows running axially the length of the cylindrical surface, each tooth being spaced along the cylindrical surface so that the total cutting patt... | 12/08/1992 |
| 5127453 | Apparatus for removing branches from tree trunks When conventional mechanical equipment for removing branches or limbs from a tree trunk is used, stumps of the branches removed remain on the tree trunk. The present invention avoids the creation of such stumps when a trunk (or a length of a trunk) is bei... | 07/07/1992 |
| 5111860 | Compression log debarking apparatus Apparatus for debarking a log using the compression debarking technique includes rollers which apply radial pressure to the log to separate the bark from the wood of the log. Three double-cone rollers, each having its double cones tapered to the middle of... | 05/12/1992 |
| 5070920 | Debarker knife assembly A debarker knife assembly is disclosed including a plurality of disks rotatably and drivingly carried on a shaft. The disks have cutting teeth on their circumferences and are co-rotated on the shaft to remove the bark from a log as the log advances and ro... | 12/10/1991 |
| 5022446 | Compression log debarking apparatus Apparatus for debarking a log using the compression debarking technique includes rollers which apply radial pressure to the log to separate the bark from the wood of the log. Pairs of rollers mounted in a bogie-like arrangement on the end of respective ar... | 06/11/1991 |
| 4875511 | Apparatus for removing bark from logs Apparatus for removing bark from logs, particularly from logs of stringy-bark eucalyts and other rough-barked tree species, and for crushing logs, consists of a plurality of pairs of concave rollers which are mounted in spaced-apart relationship along the... | 10/24/1989 |
| 4638705 | Machine for trimming and disbudding vine shoots A machine for trimming vine shoots for subsequent use as graft supports including a vertical frame defining a cylindrical bearing surface supporting a trimming and disbudding rotary head, the latter including a plurality of combined tools carried by an an... | 01/27/1987 |
| 4590979 | Device for bark-peeling tree trunks or the like A tree trunk debarking apparatus includes two straight rails, a supporting carriage which is movable along the rails and which loosely supports the leading end of the tree trunk, a drive carriage which is movable along the rails and which not only support... | 05/27/1986 |
| 4396048 | Debarking machine A machine is provided for removing the bark from logs. The machine supports a log for linear movement in the direction of the longitudinal axis of the log and for rotation about its longitudinal axis. A saw is supported for rotation about a second longitu... | 08/02/1983 |
| 4363342 | Log milling apparatus In a milling apparatus for removing root swellings from timber logs the log is received on two spaced apart supports with the butt-end of the logs freely overhanging from the supports. A holder-on urges the log against the supports. The holder-on as well ... | 12/14/1982 |
| 3987825 | Tree bark removing apparatus The present tree bark removing apparatus is suitable for mounting on a carriage for mobile use and also for stationary installation, for example, in a saw mill. A frame structure supports two rows of driven wheels which form a tree trunk passage. The whee... | 10/26/1976 |
| 3938568 | Apparatus for debarking logs An apparatus for debarking logs has a plurality of longitudinally spaced frames each of which carries a pair of horizontally and transversely spaced upper wheels and at least one lower wheel below and between the upper wheels. At least one conveyor elemen... | 02/17/1976 |
