Patents Examined by W. Donald Bray
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Patent number: 6363982Abstract: A double mortising, tenoning and dovetailing wood working machine including a base member, a sliding member and locking members. The base member is mounted on a table. The sliding member and locking members serve to precisely locate the base member relative to a piece of wood stock. The base member can be located over a piece of wood stock, locked into place and have a tenon or tail cut on the stock. The base member can then be moved horizontally over the stock, locked into position and have a second tenon or tail cut on the stock. The stock is then removed and replaced with another piece of wood stock to receive the mortise or socket joints. Through the use of the locking members and the slide member the base member can be located over the stock in the exact location needed to cut the mortise or socket joints to allow for a precise double mortise-tenon or dovetail joint.Type: GrantFiled: April 21, 2000Date of Patent: April 2, 2002Inventor: Elmo D. Nixon, Jr.
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Patent number: 6360796Abstract: A wood working machine for wood like pulp wood, saw timber or similar elongated wood parts comprises a trough designed like a tunnel. The trough has a feeding in end and a feeding out end for the wood. Rotors, each provided with helical threads on its jacket surface, are arranged in the trough for the purpose of at least partially debarking the wood. The machine performs a method where the wood during the working is taken by the rotors (6) from a portion of the trough (2) on a first level to a side-displaced portion of the trough on a second, higher level. The wood falls down to the lower level whereby tumbling of the wood is brought about at the same time as a further working of the wood is conducted. The wood during the working is taken by the rotors from the feeding in end (3) of the trough (2) to its feeding out end (4).Type: GrantFiled: November 20, 2000Date of Patent: March 26, 2002Assignee: HFD Half Pipe Debarker ABInventors: Jan Oledal, Åke Svensson
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Patent number: 6360797Abstract: A motorized power tool and several support structures are defined. A basic embodiment includes a unibody base having base upper and base lower ends and sidewalls collectively forming an internal cavity. Atop the base upper end is disposed a table having a work support surface. A motor driven implement such as a saw blade or a sanding drum is supported so that it is adjustable and extends above the table. Wheels are disposed at the base lower end of one end of the base and an extendable handle at the other. The handle can be used to tilt the base so that all the weight is centered above the wheels and then to move the power tool. A fence is also slidably mounted on the table to adjustably position a workpiece relative to the saw blade.Type: GrantFiled: December 28, 1999Date of Patent: March 26, 2002Assignee: One World Technologies, Inc.Inventors: Kenneth M. Brazell, M. Edward Lawing, Jeffrey M. Dils
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Patent number: 6360798Abstract: Router tables, generally used for woodworking, have fences used to guide workpieces during cutting. The router table has a table top which has a top work surface and a router bit hole through the table top. A plurality of support legs are provided below the table top. A safety shield is positioned above the router bit hole. The workpiece fence has left and right fences which operate independently of each other. The left and right fences slide on the top work surface in a front to rear direction and a side to side direction. A feather flap extends from the workpiece fence and holds the workpiece down against the table top during cutting.Type: GrantFiled: August 11, 2000Date of Patent: March 26, 2002Assignee: Wolfcraft GmbHInventor: Edmund Apolinski
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Patent number: 6357496Abstract: A veneer lathe comprising a piercing roller and a guiding member for producing a veneer which is free from piercing scars. A third rotational shaft (25) is raised from the position where the piercing projections (27a) of the piercing rolls (27) are pierced into the outer peripheral wall of the log (3) to a position which enables the distance between the tip end of the piercing projections (27a) and the backing plate (5a), the concave portion (4) and the guide member (6) to become larger than the thickness of the veneer (T1), and then, the third rotational shaft (25) is moved away from the log (3) up to a position which makes the piercing projections (27a) impossible to pierce the outer peripheral wall of the log (3), after which the log (3) is rotated to perform the cutting by means of knife (5).Type: GrantFiled: August 10, 2000Date of Patent: March 19, 2002Assignee: Meinan Machinery Works, Inc.Inventor: Masaru Koike
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Patent number: 6354523Abstract: An apparatus and method for forming superfine particles of rubber powder suitable for recycling, as by incorporation into new rubber production, is shown. Coarsely ground rubber particles, formed in a conventional manner, are mixed in a soaking vessel with a reagent which causes the rubber particles to swell. The swollen, reagent-impregnated rubber is less elastic and more easily ground. The reagent-impregnated particles are then transported to a grinder which reduces the size of the particles to 200 &mgr;m or less. The ground particles are then heated to drive off the reagent which is recovered in a reagent recovery system. The dried particles are then sorted according to size. The process is conveniently automated and provides the ability to economically recycle rubber.Type: GrantFiled: April 4, 2000Date of Patent: March 12, 2002Inventor: Yangsheng Liu
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Patent number: 6354347Abstract: A router bit for forming the edges of a raised door panel which includes a rotatable drive shaft, a profile cutter fixed to the drive shaft, and a back cutter fixed to the drive shaft for rotation therewith. A cylindrically-shaped pilot member is disposed intermediate the profile cutter and the back cutter. The pilot member is fixed to the drive shaft for rotation therewith and the exterior surface of the pilot member is coated with a friction-reducing material to reduce or eliminate any significant friction between the exterior surface of the rotating pilot member and the raised door panel.Type: GrantFiled: January 8, 2001Date of Patent: March 12, 2002Assignee: Freud TMM, Inc.Inventor: James Mitchell Brewer
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Patent number: 6347652Abstract: A machine for planing large wood timbers or other heavy wood products easily by self-propelling along the work piece and planing the wood surface as it goes. The machine has a set of planer knives driven by a power source, a set of rollers before and after the knives for self feeding the planer down the work, and a flat surface in front and behind the rollers and cutting knives for stability and smoothness. The roller may also be adjusted in relation to the cutters for depth of cut and/or slightly angling the cut to one side. Centering guides keep the unit balanced on the work piece. There can be multiple feed rollers in front and behind the planer knives.Type: GrantFiled: July 18, 2000Date of Patent: February 19, 2002Inventor: Scott A Hunter
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Patent number: 6345652Abstract: This invention relates to an improved separator, commonly referred to as a “lath”, “stick”, “sticker”, or “crosser”, that is used in the lumber industry to separate pieces of lumber in a stack or bundle. The separator features, in one embodiment, a plurality of grooves traversing the length of the separator to permit air circulation within the grooves, and a plurality of ridges between the grooves to support the pieces of lumber. In another embodiment, a second plurality of grooves traverse the length of the separator and the first grooves to form a cross-hatching of grooves to permit air circulation within the grooves, and forming a plurality of protrusions to support the pieces of lumber over the grooves.Type: GrantFiled: September 28, 1998Date of Patent: February 12, 2002Inventor: David M. Townsend
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Patent number: 6343631Abstract: A wood planing machine includes a base, two opposite side walls extending upright from the base, two pairs of supporting rods extending upright from the opposite sides of the base, a cutter carriage mounted movably on the supporting rods, a motor mounted on the cutter carriage, a rotatable shaft connected to and driven by the motor and having one end that extends through a vertically extending slot in one of the side walls, and an emery wheel mounted on the end of the shaft.Type: GrantFiled: December 29, 2000Date of Patent: February 5, 2002Inventor: Pei-Lieh Chiang
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Patent number: 6343633Abstract: A tree harvester, arranged on the movable arm of a forestry vehicle includes a cutting tool having pivotable claws with releaseable locking elements for relative, mechanical locking of the claws in an inwardly pivoted position, and a longitudinally adjustable arm, interconnected between the gripping claws of the cutting elements for simultaneous pivoting of the claws outwardly and inwardly, respectively. The arm is adapted to admit, on desire, the first claw independently to be pivoted relative to the second claw, wherein the outside of the first claw includes teeth adapted for engagement with a stud, arranged in the point end of the second claw, the geometry of the claws and the length of the interconnected arm are chosen such that the point end of the first claw moves inwardly of the point end of the second claw in the simultaneous pivoting motion.Type: GrantFiled: May 25, 2000Date of Patent: February 5, 2002Assignee: Elmek Automation ABInventor: Lars Larsson
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Patent number: 6343632Abstract: A jig (11) for removable fitment along the edge of a door (19) which provides a suitable combination of guides and stops to allow the location and operation of suitable cutting tools such as drills or routers. The jig comprises a pair of parallel guide plates (26) the distance between which is adjustable for removable fitment to opposing surfaces of the door. Guide holes (30, 31, 32) are located in the guide plates through which a drill or other suitable tool may be inserted. The jig has guide means (12) associated therewith for allowing location of a suitable tool at the edge of the door for making a cylindrical hole or for machining a mortise therein for receiving the body of a mortise lock or a rebate for receiving the face plate of the lock mechanism. A guide block (50) to facilitate accurate drilling is also disclosed.Type: GrantFiled: May 23, 2000Date of Patent: February 5, 2002Inventor: Zarko Zivojinovic
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Patent number: 6341632Abstract: A method and a system for forestry, in particular harvesting by means of a harvesting machine comprising a vehicle and a harvesting arrangement mounted thereon, is based on the fact that at least one position determining device (5), capable of determining the positioning of the harvesting machine by means of external wirelessly receivable signals, is arranged on the harvesting machine (1). A marking device adapted to apply a marking on pieces of timber obtained from trees is arranged on the harvesting machine. A control unit (8), suitably a computer, is arranged on the harvesting machine to control the marking device to mark the piece of timber with position information or a code corresponding thereto by means of position information received from the position determining device (5).Type: GrantFiled: December 20, 2000Date of Patent: January 29, 2002Inventor: Bengt Sörvik
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Patent number: 6340039Abstract: An improvement in the structure of a worktable for a wood carving machine includes a positioning device provided with a sleeve having a U-shaped recess at the top for mounting a supporting arm of a clamping device, the supporting arm being provided with an eccentric roller close to an intermediate portion thereof and adapted for sliding on the upper edge of the positioning device, and the clamping device being replaceable with a holder which can be moved up and down along a rod and rotated with respect to a cross-shaped sleeve for holding a workpiece in place.Type: GrantFiled: July 20, 2000Date of Patent: January 22, 2002Inventor: Wen-Chi Chang
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Patent number: 6338446Abstract: A metallic coating layer is removed at least partly from scrap metal pieces having a core and the coating layer on the core. The coating layer has a lower melting temperature than the core. The scrap metal pieces are agitated in a container with abrading elements so as to cause multiple collisions, whereby the coating layer is at least partly removed. During the agitating the container temperature is a temperature T in the range Ts(coat)<T<TL(core) wherein Ts(coat) is the solidus temperature of the coating layer and TL(core) is the liquidus temperature of the core. The agitation may be by rotationally tumbling or shaking the scrap metal pieces and the abrading elements.Type: GrantFiled: July 13, 2000Date of Patent: January 15, 2002Assignee: Corus Aluminium Walzprodukte GmbHInventor: Adrianus Jacobus Wittebrood
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Patent number: 6336483Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter and a contact surface, which defines a cutter slot. The cutter is arranged and configured to protrude from fence support through cutter slot to make a plunge cut into a surface of a workpiece when the contact surface is pressed against the surface and the cutter is plunged into the workpiece by pushing on a rearward handle portion of the tool. The drive is arranged and configured to rotatably drive the cutter through a motor. A preferred fence system includes an angle adjustment system arranged and configured to position the fence at a wide range of fence angles and, at any selected distance from a top face of the workpiece to the fence, the distance from the top face of the workpiece to the cutter remains constant as the front fence angle is adjusted. A preferred fence system includes a trunnion which pivotally couples the front fence to the fence system.Type: GrantFiled: June 9, 1997Date of Patent: January 8, 2002Assignee: Porter-Cable CorporationInventors: John C. Smith, Earl R. Clowers
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Patent number: 6336388Abstract: A blind cut-down apparatus for cutting and sawing a blind having at least a head rail component, and blind slats suspended from the head rail, and having a blind holding plate with an opening for holding the components in position for cutting, a slat cutting saw moveable relative to the holding plate for cutting blind components held in the holding plate, and including a movement device for moving the cutting saw and the cutting die holder. Also disclosed is a method of saw cutting ends of blind components in which the blind components are held in a head plate and in which a saw balde cuts the components.Type: GrantFiled: July 23, 1999Date of Patent: January 8, 2002Assignee: Shade-O-Matic LimitedInventor: Norbert Marocco
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Patent number: 6336484Abstract: The present invention concerns a method that is timesaving, more economical and facilitates the handling and processing of short solid wood planks. Tongue-and-groove joints are machined on the short sides of the short green planks enabling their releasable tight assembly in rows for the seasoning process in the kiln dryer. This temporary attachment between adjacent planks prevents exposition of the short sides to the drying air thus avoiding the usual end grain checking on the latter during kiln drying, and eliminates the need of performing any subsequent machining and trimming steps after the expensive kiln drying step. This process then also improves the saving opportunities by increasing the volume of wood drying capacity and by increasing the production of reusable green wood shavings as opposed to unusable wood shavings following the kiln drying operation.Type: GrantFiled: June 1, 2000Date of Patent: January 8, 2002Inventor: Gilles Grenier
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Patent number: 6334475Abstract: The invention relates to a pencil sharpener, comprising a clamping chuck (1) that feeds a pencil rotationally fixed therein to a rotating milling device. The clamping chuck (1) comprises a plurality of locating tongues (8) pointing almost radially towards a clamp chuck axis (4) to fix the pencil, said tongues being connected to a holding frame(7) surrounding the clamp chuck axis (4) in such a way that they cannot rotate. When the holding frame (7) is pivoted around the clamp chuck axis (4), the locating tongues (8) are bent in the form of a unilaterally tensed bar spring and interacting with stops (15) of a clamp chuck housing (2, 3). The radial inner locating ends (10) of the locating tongues (8) are pivoted outwards to open the clamp chuck (1). The restoring tension of the bent locating tongues (8) is simultaneously used as closing tension for the clamp chuck (1).Type: GrantFiled: August 21, 2000Date of Patent: January 1, 2002Assignee: Wilhelm Dahle Büro-technik GmbH & Co. KGInventor: Thomas Schultheiss
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Patent number: 6330895Abstract: A log flaking and loading method and apparatus. First and second pairs of cutting heads have cutting heads spaced apart to receive a log passed therebetween and thereby to cut two substantially parallel sides. The log is first cut by the first pair of cutting heads, rotated about its elongate axis, and cut by the second pair of cutting heads to produce a four-sided cant. The logs are preferably stored ahead of the first pair of cutting heads in corresponding carriers, which are preferably held in a magazine for dispensing the loaded carriers.Type: GrantFiled: May 18, 2000Date of Patent: December 18, 2001Assignee: Key Knife, Inc.Inventors: Charles T. Carpenter, Robert M. Bayly, Bradley R. Stager