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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7290576 | Compressed wood product and method of manufacturing compressed wood product A compressed wood product includes a first part composed of a wooden material compressed into a predetermined shape; and a second part to be joined with the first part. A direction of wooden fibers of the wooden material composing the first part is substantially par... | 11/06/2007 |
| 7201339 | Method and apparatus for producing wood shavings A heavy flywheel disc having a radially spaced apart array of pockets in which are mounted knives. Short logs, which have been de-barked, are fed in with their long axis parallel to the face of the flywheel. A hydraulic ram translates the logs sideways into the plan... | 04/10/2007 |
| 7143796 | Wood-reducing apparatus with continual feeder assembly Apparatuses, methods, and systems for producing wood chips are disclosed. The invention in one embodiment produces smooth wood chips of generally uniform size and shape, suited for use in making paper, cardboard, and other recyclable materials. An apparatus is discl... | 12/05/2006 |
| 7055562 | Apparatus for comminuting wood board stacks to strands An apparatus for comminuting a stack of wood boards to produce wood strands. A stack feeder feeds the stack of wood boards to a chipper chamber on a longitudinally displaceable carriage moving transverse to the direction of feed of the stack and having a blade ring ... | 06/06/2006 |
| 6941987 | Apparatus for clearing log jams in disc type chipper Apparatus for processing logs to manufacture wood chips. The apparatus includes a circular disc for passing a series of blades through a chipping station and a chute and spout assembly for feeding logs from a conveyor into the chipping station. A lifting mechanism i... | 09/13/2005 |
| 6575066 | Method and apparatus for reducing oversized wood chips An apparatus is provided for cutting oversized wood chips smoothly and uniformly, such that the resulting chips are of optimum size and shape for use in making paper, cardboard, and other recyclable materials. A method is provided for aligning and guiding... | 06/10/2003 |
| 6457500 | Method and apparatus for processing pan-shaped wood members A method and apparatus for reducing the size of wood members, particularly pan-shaped wood members known in the industry as "lilypads", such that the orientation of the fibers of the lilypads are encouraged to be substantially perpendicular to the longitu... | 10/01/2002 |
| 6390161 | Process and device for cutting wood A process is disclosed for cutting logs to form large-surface wood chips, in which, on the one hand, a rotating knife ring provided with cutting knives which are oriented parallel to its axis of rotation and, on the other hand, a quantity of logs which ar... | 05/21/2002 |
| 6289954 | Veneer product and process A system for converting wood products into viable base construction materials consisting of a support structure, a central structure consisting of a low speed, high torque, hydraulic motor which drives a central drive shaft to which a planing table is rot... | 09/18/2001 |
| 6164350 | Method and device for preventing or releasing a blocking caused by logs fed to a chipper through a feeding chute Method and apparatus for preventing or releasing a blockage occurring in a flow of tree trunks supplied to a wood chipper via a feed hopper and for securing an uninterrupted flow of timber to the chipper. At least one lifting arm is insertable to project ... | 12/26/2000 |
| 6152200 | Machine for making wood shavings for animal litter Apparatus for creating wooden shavings for stock bedding from logs which includes a frame supporting a carriage bed and rotary carriage ring. Arcuately spaced rotary cutter means are provided on the carriage bed, and are positioned to contact logs support... | 11/28/2000 |
| 6125897 | Method and apparatus for processing pan-shaped wood members A method and apparatus for reducing the size of wood members, particularly pan-shaped wood members known in the industry as "lilypads", such that the orientation of the fibers of the lilypads are encouraged to be substantially perpendicular to the longitu... | 10/03/2000 |
| 5975169 | Feeding method and feeding chute of disc chipper A method and a feeding chute for feeding logs (10) into a disc chipper by means of the gravity. The logs (10) are supported laterally by means of adjacent bottom portions (31, 32) of the chute (3) and shoulders between those. The logs are turned parallel ... | 11/02/1999 |
| 5964264 | Material strander and methods therefor An improved strander, and methods of operating the same, alternately delivers material into a housing element through at least two feeding points so that material fed through the first feeding point can be stranded during movement of the housing element i... | 10/12/1999 |
| 5709257 | Removing bark from wood chips A method of crushed ground-wood processing comprises charging the input between two relatively revolving and displaced conical surfaces with simultaneous dimension separation variation by circulating vibrations causing the surfaces to apply variable squee... | 01/20/1998 |
| 5477900 | Non-jamming pulpwood chipper chute and spout assembly An improved chute and spout assembly for use with a wood chipper that clears logjams by the use of hydraulic rams attached to the chute near the chipper. The rams move between an extended position, for moving the logs, and a retracted position, when the l... | 12/26/1995 |
| 5299610 | Process and device for the continuous chipping of long timbers A process and a device for the continuous chipping of timbers of different length. To increase the chipping performance, in the execution of the sawing cut or directly thereafter, at least one supporting element for supporting the leading end face of a lo... | 04/05/1994 |
| 5070918 | Feed device suitable for use with wood flaking machines A device suitable for the continuous feeding of wood pieces of approximately the same length into flaking machines comprises a feed trough opening into the flaking machine, behind which there is arranged a loading magazine whose cross section agrees with ... | 12/10/1991 |
| 5029625 | Machine for reducing the size of material A machine for reducing the size of material is provided. A movable blade is moved at least nearly parallel to a fixed blade via a raising and lowering mechanism, and is supplied with a force that opposes a cutting pressure. Only a single drive is necessar... | 07/09/1991 |
| 4964447 | Flat disk flaker A horizontal disk wood flaking machine has two or more continuous feed conveyors each of which has a vertical chute or feed box that brings wooden logs to an upper surface of the cutting disk. The drive motor for the disk is situated below the disk at the... | 10/23/1990 |
| 4784198 | Process and apparatus for loading chipping machines with lumber of uniform length This invention relates to a process and an apparatus for achieving cost-effective and loss-free chipping of lumber which is supplied in lengths of the customary transportation width of approximately 2.50 m. According to the invention, the process comprise... | 11/15/1988 |
| 4583574 | Flaker for trunk and residual wood Disclosed is a flaker for trunk and residual wood for the direct production of a mass of chips free of splinters and low in fines. Flaking takes place within a blade rotor equipped with a replaceable blade ring, which together with its housing may be move... | 04/22/1986 |
| 4185787 | Apparatus for making wood shavings Wood shavings suitable for use as absorbent bedding litter for poultry or other animals are produced at a high rate of production by a machine which includes an elongate open-bottomed stationary hopper adapted for receiving a supply of elongate wood piece... | 01/29/1980 |
