Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7210509 | Chipping head A chipping head, particularly a chipping head of a chipping canter, is disclosed comprising a head body having thereon mounted multiple chipping knives that are adapted on the head body in an annular fashion spaced at a distance from each other. Onto the chipping he... | 05/01/2007 |
| 7178566 | Process and apparatus for producing veneer strips, chipped wood or the like The invention relates to a process and an apparatus for producing veneer strips, chipped wood or the like, individual pieces of wood being joined together, with grains parallel, to form a group and then a multiplicity of such groups being arranged one behind the oth... | 02/20/2007 |
| 7171278 | Optimized planer feeder system and method An apparatus for optimizing orientation of a workpiece in a planermill for feeding of the workpiece into a planer includes an infeed to the planer, a workpiece turner for selectively turning the workpiece end-for-end upstream of the planer on the infeed a workpiece ... | 01/30/2007 |
| 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 |
| 6722960 | Apparatus for planing and sizing a workpiece An apparatus for sizing and sanding a workpiece, the apparatus comprising a housing having a horizontally throughgoing passage, a feed conveyor for advancing the workpiece through the passage, the workpiece having an upper surface that advances through the passage a... | 04/20/2004 |
| 6705363 | Log processor and method A log processor and log processing method scans a log (L) at a first station (18) so that the longitudinal centerline (32) and a sawing scheme for the log can be automatically determined by a controller (4). The log is oriented at a second stati... | 03/16/2004 |
| 6564837 | Process for preparing bamboo timber A process for preparing bamboo timber has steps of slicing a bamboo into bamboo ribbons, combining the bamboo ribbons to form a bamboo cylinder, shaving the bamboo cylinder into bamboo foil, and removing irregular sides of the bamboo foil.... | 05/20/2003 |
| 6546980 | Method of fabricating bamboo slats for bamboo blinds A method for fabricating bamboo blind slats is disclosed. The steps include splitting a selected bamboo stem into several bamboo strips, removing the skins and joints from the bamboo strips before being disinfected and dried and then trimming them to fine... | 04/15/2003 |
| 6543497 | Wood flake, method and apparatuses for producing a wood flake as well as for profiling a log, and use thereof For use as a wood intermediary and the like in industry, an essentially wedge-shaped wood flake with opposite concave and convex surfaces that converge at an imaginary tip outside the flake dimensions. The tip is located beyond the flake a distance of typ... | 04/08/2003 |
| 6532850 | Method and apparatus for dissecting logs A method and an apparatus for dissecting logs in a sawing installation are disclosed. The installation having a reciprocally moving longitudinal conveyor for moving the logs reciprocally through a double band saw assembly utilizing band saw blades having ... | 03/18/2003 |
| 6520228 | Position-based integrated motion controlled curve sawing A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through a... | 02/18/2003 |
| 6371176 | Log siding planer shaper This invention relates to a planing machine that can plane and shape a workpiece to replicate a hand-hewn log for use in siding, paneling and other similar type building needs.... | 04/16/2002 |
| 6289953 | Splitting apparatus An apparatus for splitting a wood board into two separate sheets, comprising a pair of parallel drive shafts rotatable in the opposite directions, a series of toothed wheels fixed on each of the drive shafts at a predetermined spaced interval, each toothe... | 09/18/2001 |
| 6240988 | Process and device for production of octagonal or polygonal beams To make the usable wood volume of the tree trunks as large as possible, octagonal or dodecagonal dressed timbers are proposed from which then boards or beams with inclined edges are cut. To produce octagonal or dodecagonal dressed timbers, in a first mach... | 06/05/2001 |
| 6213176 | Device for working of tree trunks A device for producing squared timber from tree trunks includes a feed section, a machining center, and a delivery section; the feed section has at least two grippers which can be placed against the tree trunk to be machined and using which the tree trunk... | 04/10/2001 |
| 6196283 | Woodworking machine A woodworking machine, in particular a trimming machine, of working elongate workpieces such as timbers, beams, boards and the like is proposed, the workpiece resting on a support and a longitudinally movable coupling element guiding the workpiece to work... | 03/06/2001 |
| 6192949 | Method for making bamboo blind slats A method is designed for making bamboo blind slats. The method comprises an initial step in which a selected bamboo stem is split into a plurality of bamboo strips, which are then skinned and disinfected with a sulfur fume for over 12 hours. The disinfect... | 02/27/2001 |
| 6173748 | Method of reducing noise in a barking plant and a barking drum, chipper and conveying line A method of reducing noise in a barking plant; a barking drum, a chipper and a conveyor between these. The penetration of noise through conveying openings of a partly or wholly covered conveyor (3) for receiving logs from a barking drum (1), and/or a part... | 01/16/2001 |
| 6164351 | Precision-balanced cutter head and method A rotatable cutter head comprising an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate concentrically thereon for rotation therewith, an outer hub having a centrally-disposed bore therethr... | 12/26/2000 |
| 6161603 | Procedure and apparatus for working a tree trunk by chipping Procedure for working curved tree trunks by chipping into timber products, such as boards and cants, in which procedure the trunk (T) is crook-chipped and a straight side board (S1) is edged at the same time. The invention also relates to an apparatus for... | 12/19/2000 |
| 6148884 | Low profile hardwood flooring strip and method of manufacture A method of producing a hardwood flooring product, including the steps of processing a strip of raw wood into a blank having a predetermined thickness and width, and top and bottom surfaces defining parallel planes relative to each other, and splitting th... | 11/21/2000 |
| 6135176 | Infeed side chipper drive assembly for pivotable gang saw Chipping heads are mounted for lateral movement in one dimension in a gang saw module which is itself moveable translationally in the first dimension and angularly in a second dimension, for skewing relative to an in-feed direction of a curved cant. The c... | 10/24/2000 |
| 6098680 | Slats of bamboo window shade and method for making same A method is used to make bamboo slats which are intended for use in making a blind. The method comprises a first step in which a bamboo stem is split into a plurality strips. The bamboo strips are barked, polished, and bleached before they are adhered sid... | 08/08/2000 |
| 6062281 | Vertical arbor saw for shape sawing a log A processing system for processing logs having a curvature into lumber pieces. The system has a cutting station including a saw box with a chipper and a vertical arbor saw mounted to the saw box. The saw box is movable upwardly and downwardly and angularl... | 05/16/2000 |
| 6035910 | Process and apparatus for producing narrow veneer strips The invention relates to a process and apparatus for producing veneer strips of predetermined length, width and thickness from wood. The apparatus has a severing tool for dividing the wood to be machined into boards, a clamp for clamping the boards, and a... | 03/14/2000 |
| 6029722 | Shaping machine A shaping machine has at least one rotatably driven spindle having a conical receiving opening. A tool is provided. A conical member is mounted in the receiving opening, wherein the tool is secured by the conical member to the spindle. A clamping device c... | 02/29/2000 |
| 6026872 | System for producing cants and wood chips A log is first passed between a pair of coarse chippers to cut material from opposite faces of the log as coarse chips and produce a pair of flat sides. Then the log is passed between a pair of fine chippers to cut material from the flat sides as fine chi... | 02/22/2000 |
| 5967207 | Method of fabricating bamboo slats for venetian blinds A method of fabricating bamboo slats into bamboo blinds, wherein bamboo wood is cut into bamboo strips of predetermined length. The bamboo strips are polished, then boiled in a hydrogen peroxide solution for bleaching the strips. The bamboo strips are the... | 10/19/1999 |
| 5934348 | Method and apparatus for the fabrication of strands A method and an apparatus for fabricating strands from round wood are disclosed. The strands have a length of between 200 and 350 mm in the direction of the wood fibers and have a width of between 1 and 15 mm. The strands are fabricated from profiled logs... | 08/10/1999 |
| 5896903 | Method of fabricating bamboo slats for bamboo blinds A method of fabricating bamboo slats for bamboo blinds, including the steps of: i) cutting bamboo wood into bamboo strips subject to a predetermined length; ii) removing the skin and joints from both sides of the bamboo strips, then boiling the bamboo str... | 04/27/1999 |
| 5829496 | Finishing device A device for finishing the corner of an impression of the profile. Corners of impressions of doors manufactured in one-piece are shaped to give the appearance of a mitered joint where a joint does not exist. By selecting the appropriate cutter, sides of t... | 11/03/1998 |
| 5823240 | Low profile hardwood flooring strip and method of manufacture A method of producing a hardwood flooring product, including the steps of processing a strip of raw wood into a blank having a predetermined thickness and width, and top and bottom surfaces defining parallel planes relative to each other, and splitting th... | 10/20/1998 |
| 5816302 | Method and apparatus for forming curved cants for curve sawing in an active gangsaw A gangsaw in-feed mechanism for positioning a cant and feeding the cant generally longitudinally into a gangsaw along a feed path, wherein the cant is oriented with its planar faces generally horizontal, and wherein the in-feed mechanism has laterally opp... | 10/06/1998 |
| 5803142 | Debarking and chipping folded whole-trees This invention relates to debarking and chipping folded whole trees. Such structures of this type, generally, increase wood recovery by making high-quality chips out of tree tops, branches, as well as, other larger portions of the tree.... | 09/08/1998 |
| 5765615 | Canter with curve-cutting capability A canter capable of curve-cutting featuring rotary, power-driven frustro-conical chipper heads for chipping a workpiece, which chipper heads are adjustable under the influence of movement structure to achieve five degrees of freedom of motion and adjustme... | 06/16/1998 |
| 5746263 | Method of producing a wooden package or container and a wooden package or container The present invention concerns a method of producing a wooden package or container from an elongated piece of wood, e.g., a precut alder or birch piece (block). The invention is implemented by separating at least one essentially cylindrical, hollow blank ... | 05/05/1998 |
| 5711358 | Method and apparatus for making vertical grain wood strands A veneer lathe is provided with back-up rolls modified to include serrating knives to effect cutting a log longitudinally at predetermined circumferentially spaced apart intervals to define the width of wood strands, and also to include scribing cutters t... | 01/27/1998 |
| 5664611 | Primary log breakout machine A machine in which a log is transported through the machine center for chipping or sawing a slab from both sides of the log in a single pass and/or sawing a side board or flitch from one or both sides of the log in a single pass and/or sawing multiple boa... | 09/09/1997 |
| 5597024 | Low profile hardwood flooring strip and method of manufacture A method of producing a hardwood flooring product, including the steps of processing a strip of raw wood into a blank having a predetermined thickness and width, and top and bottom surfaces defining parallel planes relative to each other, and splitting th... | 01/28/1997 |
| 5590700 | Vacuum flitch table with self-cleaning vacuum valve A vacuum valve includes a valve body with a cylindrical sidewall having a vacuum inlet coupled to a vacuum source and a vacuum outlet. A piston is disposed within the valve body for movement between an open position and a closed position and provides a va... | 01/07/1997 |