Work Guide Patents (Class 451/555)
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Publication number: 20090149120Abstract: The combination of a knife storage block and a knife sharpener including a sharpening unit. The combination has a guard extending forwardly from either the knife storage block or the sharpener which in use protects a user's hand while drawing a knife through the sharpening unit. The knife sharpener may be external to the knife block or integral to it.Type: ApplicationFiled: June 5, 2008Publication date: June 11, 2009Applicant: ROBERT WELCH DESIGNS LIMITEDInventor: Alan Rupert Welch
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Publication number: 20090117838Abstract: The aim of the present invention is to provide a ceramic whetstone (3) which can accelerate sharpening cutlery smoothly. The ceramic whetstone (3) includes a rectilinear shaped stick (30) having a plastic nut (31) at a first end, a plastic handle (32) at a second end. A bump (311) disposed inside the plastic nut (31), a fixed bump (321) disposed inside the hollow plastic handle (32) to a second end, a stop plate (322) disposed to a top end of the handle (32) for shielding thumb and index finger portion of a user, the stick (30) has an axial hole (301) accommodates the plastic nut (31) and the handle (32) fit over to both ends respectively, the bump (311) and the fixed bump (321) fit in the axial hole (301) to resist against the stick (30).Type: ApplicationFiled: November 1, 2007Publication date: May 7, 2009Inventor: Po-Yuan Huang
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Patent number: 7503241Abstract: The invention relates to a device (1) for sharpening the blade of a manual cutting tool, in particular a knife. The inventive device comprises a support (2) provided with a cutout (4). Identical sharpening levers are arranged on each side of the cutout in front and in staggering manner with respect to each other and provided with a curved arm (13) having a rectilinear end edge (14) and another arm (16) forming means for returning in a position by gravity. Each lever (11) is pivotally mounted in the jointing area (15) of the arms (13, 16) around an geometrical axis which is generally perpendicular to a longitudinal direction (A-A?) of the cutout and a slot (5). Said device is particularly adapter to the agriculture and food industry.Type: GrantFiled: March 3, 2005Date of Patent: March 17, 2009Assignee: Dassaud FilsInventors: Nathalie Dassaud, René Dassaud
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Patent number: 7467991Abstract: The present disclosure concerns embodiments of an improved knife sharpener. In particular embodiments, the knife sharpener has an elongated sharpening member, which can be, for example, an abrasive sharpening rod. The sharpening rod can be made of any of various suitable materials, such as ceramic, porcelain, stone, diamond. The sharpening member extends through a sharpening guide, which is movable in both directions along the length of the sharpening member. The sharpening guide defines at least one guide slot for receiving a knife blade to be sharpened. The guide slot is configured to position a facet of the knife blade in sliding contact with the sharpening member and at a predetermined angle with respect to the sharpening member.Type: GrantFiled: October 21, 2005Date of Patent: December 23, 2008Assignee: GB II CorporationInventors: Steven A. McCowen, Charles Kain
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Publication number: 20080163432Abstract: An angler's utility tool that includes a line cutter and a sharpening stone has been developed to facilitate hook and lure exchanges. The angler's tool includes a first planar member, a second planar member, a lever arm, and a sharpening stone. The first planar member has a first end and a second end with the first end of the first planar member terminating into a first jaw. The second planar member has a first end and a second end with the first end of the second planar member terminating into a second jaw. The second ends of the first and the second planar members are joined to one another. A fulcrum pin extends through the first ends of the first and the second planar members. The lever arm is pivotally and rotationally mounted to the fulcrum pin, and the sharpening stone is mounted to the covering layer covering the portion of the second planar member. The sharpening stone may include a groove in a longitudinal edge to enable hook point sharpening.Type: ApplicationFiled: January 3, 2008Publication date: July 10, 2008Applicant: Buck 'n Beel Enterprises LLCInventors: Tim L. Reid, William D. Fister
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Patent number: 7393266Abstract: The invention relates to a pocket-sized knife sharpening device comprising two sharpening bars which are arranged in a housing and which are rotationally mounted. The sharpening bars are guided with the other ends thereof into arc-shaped recesses in the front wall and the rear wall of the housing. They are loaded onto each other by means of springs and cross each other in a knife opening which is formed by slits extending in a parallel manner in relation to each other in the front wall of the rear wall.Type: GrantFiled: January 13, 2005Date of Patent: July 1, 2008Inventor: Harald Stallegger
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Patent number: 7235004Abstract: A knife-edge conditioning apparatus comprises at least one precision angled knife guide with one face of the knife blade maintained in sustained sliding or rolling contact and which guides the elongated edge of the blade into sustained contact with the hardened surface of an object and positions the plane of the adjacent edge facet at a precise predetermined angle relative to the contact plane of the hardened surface made of a material of equal or greater hardness than the metal of the knife blade without any tendency to abrade as the blade face is moved along the guide with its elongated edge in sustained contact with the hardened surface.Type: GrantFiled: March 18, 2004Date of Patent: June 26, 2007Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Robert P. Bigliano
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Patent number: 7220169Abstract: A sharpening apparatus (16) for a blade-like cutting implement. The sharpening apparatus has an elongate body (18) and a cutting edge extending widthwise across one end of the body (11) at a predetermined angle relative to the longitudinal axis of the body (11). The cutting edge is formed by an inclined face formed on one side face of the body. The apparatus includes a cradle (26) for holding a blade-like implement to be sharpened and a mounting body for mounting the cradle (26) relative to a grinding surface. The cradle is mounted on a pair of guide rails (22, 24) for movement along a rectilinear path, the cradle including first and second rail followers slidably connected to a first and second of the guide rails respectively. The cradle (26) includes a seat for locating the blade-like implement at a reselected reference position on the cradle (26) such that the cutting edge of the implement to be sharpened is located parallel to said rectilinear path.Type: GrantFiled: August 7, 2003Date of Patent: May 22, 2007Assignee: Turner Intellectual Property LimitedInventor: Paul Steabben Hepworth
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Patent number: 7182679Abstract: A conical point sharpener for sharpening conical shaped points such as fishhooks, needles, surgical instruments includes a handle, a mandril with an abrasive material coating fixed to one end of said handle, a drive spindle, wherein said drive spindle is movably attached to said handle and envelops said mandril, an outwardly protruding tapered opening on said drive spindle, and a precision point alignment nest, formed between said abrasive material coating on said mandril and said drive spindle, such that when the conical point to be sharpened is placed in said outwardly protruding tapered opening of said drive spindle, the item to be sharpened is located in said precision point alignment nest and the point of the item is touching said abrasive material coating on said mandril so that the user can then rotate said drive spindle while holding the item to be sharpened, thereby conically sharpening the point as the item to be sharpened rotates around said mandril.Type: GrantFiled: May 25, 2006Date of Patent: February 27, 2007Inventor: William S. Scott
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Patent number: 7175023Abstract: A chisel scabbard (10) comprises a pouch (12) and a belt clip (22). An insert (14) is received in the mouth (16) of the pouch (12) and is adapted to receive various sizes of chisel. A flat front surface (64) is provided with abrasion material to permit sharpening of the chisel. Clips (50) enable two scabbards to be connected together. A sharpener (90) is provided comprising an abrasion plate (110) mounted in a slider (100). The chisel displaces the plate in the slider on insertion of the chisel in the scabbard. The slider can be actuated to repeat the sharpening stroke. The pouch (12) can comprise two extruded sections (92, 94) and end caps (96, 14?).Type: GrantFiled: November 30, 2001Date of Patent: February 13, 2007Assignee: Irwin Industrial Tool CompanyInventor: Graham John Martin
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Patent number: 7121935Abstract: A blade sharpener (10) comprises sharpening strip providing carriers (12) and (14) each including an obliquely extending linear sharpening strip providing rod (16) and carrier movement non-interference guiding means in the form of a slot defining formation formed by facing rail pairs (18), (20) facing one another across a slot (22). The rail pairs (18) and (20) form part of a carrier support frame (24) to which the carriers (12), (14) are mounted to be displaced in diametrically opposed directions and along the spacings formed between the rails of the rail pairs (18), (20). A crossover point (28) is defined between the rods (16) within which the cutting edge of the blade of a knife is in an abrasion fashion moved during a sharpening action. The crossover point (28) is constrained to move along a linear sharpening path extending along the slot (22) during sharpener use.Type: GrantFiled: December 23, 2002Date of Patent: October 17, 2006Inventor: Stephan Deon Pretorlus
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Patent number: 7108595Abstract: An apparatus for the manual sharpening of blades of cutting tools, includes at least two sharpening elements each with at least one sharpening edge, wherein the sharpening elements can be disposed to be partially overlapping, and partially in contact with each other, such that in a first state, one sharpening edge of each of the first and the second sharpening elements defines a first and a second currently used sharpening edge, respectively, and these sharpening edges cross one another at a crossing point and form a V-shaped gap with an angle, into which the cutting tool blade is inserted. The first and second sharpening elements can be shifted with respect to each other while maintaining the angle, such that the crossing point is shifted along the first and/or second currently used sharpening edge, and the at least positionings of the sharpening elements with respect to one another are reversibly fixed.Type: GrantFiled: December 16, 2004Date of Patent: September 19, 2006Inventor: Georg F. Reisinger
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Patent number: 6997795Abstract: A manual sharpener for sharpening either right or left-handed blades of scissors or shears comprises a support structure with an attached hand holding arrangement. A magnetic device holds at least one adhesive pad on the supporting structure. One or more precision angle blade guides are mountable on the structure.Type: GrantFiled: August 10, 2004Date of Patent: February 14, 2006Assignee: Edgecraft CorporationInventor: Daniel D. Friel, Sr.
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Patent number: 6971949Abstract: A sharpening guide for a dental tool is provided, with the dental tool having a handle, a working portion, and a shank extending between the handle and the working portion.Type: GrantFiled: January 12, 2005Date of Patent: December 6, 2005Inventor: Roger Gleason
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Patent number: 6910959Abstract: A fixture (1) for guidance of a tool having a cutting edge with respect to the periphery of a rotating grinding or polishing wheel (2), comprising a frame structure that runs along the periphery (6) of the wheel and has a guide formed as a slot (17) with an open other end, the slot providing a support surface (19) that is sloping relative to the radius of the wheel, and the inner end of the slot terminating radially within the periphery of the wheel on each side thereof, the fixture (1) in one end supported (11) for pivoting motion in a main plane of the wheel and in the other end carrying a separate balance weight (12).Type: GrantFiled: May 15, 2002Date of Patent: June 28, 2005Inventor: Tore Eklund
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Patent number: 6905403Abstract: The invention relates to a knife sharpening machine comprising a plate-type holding device on which two intersecting sharpening bars are rotationally mounted and loaded in relation to each other by means of springs. The sharpening bars, at least in the grinding area, are made of a ceramic material. The plate is provided with a slit which is open on one end and closed on the other, extending as far as the intersection point of the sharpening bars. When pressure is exerted by the knife in the direction of the closed slit end, the sharpening bars are spread apart from each other counter to the force of the springs. Curved guides are provided on both sides of the slit. The ends of the sharpening bars, facing away from the axes of rotation thereof, are guided therein.Type: GrantFiled: October 10, 2001Date of Patent: June 14, 2005Inventors: Harald Stallegger, Alois Spreitz
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Patent number: 6852014Abstract: A sharpening guide for a dental tool is provided, with the dental tool having a handle, a working portion, and a shank extending between the handle and the working portion.Type: GrantFiled: December 22, 1999Date of Patent: February 8, 2005Inventor: Roger Lee Gleason
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Patent number: 6848983Abstract: Presented is a blade sharpener, resurfacer, and planer, for sharpening flat or beveled blades of a linear edged tool, such as a drywall finishing tool and other tools edges, such as concrete trowel blades. The device of the invention makes using a file for such tasks much more precise, and much safer.Type: GrantFiled: December 17, 2002Date of Patent: February 1, 2005Inventors: Roy C. Gallegos, Gerald B. Gallegos
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Patent number: 6790132Abstract: A dressing block for dressing or finishing a work surface has an abrasive surface with abrasive parallel ribs. The ribs of the dressing block are for slidingly engaging a work surface having a pattern of protuberances separated by intersecting recesses. The abrasive surface of the ribs and the grooves between the ribs slidingly engage the protuberances and the recesses to dress the work surface. The user slides the dressing block relative to the work surface in a first direction to engage a first set of the recesses. The user then slides the dressing block in a second direction to engage the second set of recesses.Type: GrantFiled: May 22, 2003Date of Patent: September 14, 2004Inventor: Gibbs M. Slaughter, Jr.
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Patent number: 6726551Abstract: A manual knife sharpener is provided with angle control structure. The structure includes a guide member having a guide surface which forms an angle with the abrasive surface of the sharpening member. When the blade is inserted into the space between the abrasive surface and the guide surface the blade presses against the guide surface to displace the guide surface linearly in a direction perpendicular to the guide surface so that the movement is a lateral movement in the same plane without any pivoting or twisting of the guide member. Thus, the angle between the guide surface and the abrasive surface remains constant regardless of the extent of displacement of the guide member.Type: GrantFiled: December 18, 2001Date of Patent: April 27, 2004Assignee: Edgecraft CorporationInventor: Daniel D. Friel, Sr.
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Publication number: 20040014415Abstract: The invention relates to a knife sharpening machine comprising a plate-type holding device on which two intersecting sharpening bars are rotationally mounted and loaded in relation to each other by means of springs. The sharpening bars, at least in the grinding area, are made of a ceramic material. The plate is provided with a slit which is open on one end and closed on the other, extending as far as the intersection point of the sharpening bars. When pressure is exerted by the knife in the direction of the closed slit end, the sharpening bars are spread apart from each other counter to the force of the springs. Curved guides are provided on both sides of the slit. The ends of the sharpening bars, facing away from the axes of rotation thereof, are guided therein.Type: ApplicationFiled: April 18, 2003Publication date: January 22, 2004Inventors: Harald Stallegger, Alois Spreitz
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Patent number: 6626066Abstract: A foldable hand sharpening tool is disclosed, having an elongate body/handle with a first sharpening member pivotally mounted at one end which folds into the body when not used, and at the other end having a “V” shaped sharpening slot formed by opposing sharpening members with pivotable elongate guide members which pivot into place to retain the blade in alignment in the “V” slot during sharpening and fold into the body when not used.Type: GrantFiled: January 2, 2002Date of Patent: September 30, 2003Inventor: Rudolf Koppe
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Patent number: 6402608Abstract: A sharpener (1) for a medical instrument has a housing (2) with an opening (3) for receiving the fingers of a hand and a sharpening element (6), having an abrasive surface (1), bisecting another opening (9) and defining two apertures (9a/9b) for respectively receiving the prongs of an instrument having edges which can be sharpened by simultaneously drawing them across the sharpening element.Type: GrantFiled: January 25, 2001Date of Patent: June 11, 2002Assignee: Miltex Technology CorporationInventors: Robert B. Pugliesi, Salvatore Cucinella
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Patent number: 6398901Abstract: A sharpening guide assembly for use in sharpening ski and snowboard edges includes an angle member and at least one riser member. The angle member includes at least a first outer surface and a second outer surface, an inner edge of the first outer surface adjoining an upper edge of the second outer surface. The riser member is positioned on the first outer surface of the angle member such that a top portion of the riser member extends above the first surface of the angle member. The angle member is formed of a first material and the riser member is formed of a second material, wherein the second material has a hardness which is greater than a hardness of the first material. During a sharpening operation, a sharpening tool is supported on the riser member such that the sharpening tool such as a file member is positioned above the first outer surface of the angle member so as to avoid potential wear causing contact therewith.Type: GrantFiled: October 6, 1999Date of Patent: June 4, 2002Inventor: Donald C. Hodge
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Publication number: 20010051498Abstract: A wire cleaning system includes a pair of blocks that are generally elongated and have an internal chamber. A conduit extends from the chamber to a port disposed at the side of the block. The port is connected to an air supply. A groove is made on one side of the block. The groove generally conforms to the wire diameter or shape. Holes are made from the bottom of the groove to the chamber. An abrasive media may be placed over the holes in the groove in the blocks. A pair of the above-described blocks with media disposed in the grooves are placed on opposite sides of the wire and squeezed together by clamps, holding the media against the wire. The face on the leading side of the block is placed against a stop to prevent it from moving as the wire is pulled. Additional pairs of blocks are added as required in a radial direction to cover the entire circumference of the wire. As the wire is pulled, air is injected into the ports in the blocks. The air exits from the holes and blows off the debris from the media.Type: ApplicationFiled: June 11, 2001Publication date: December 13, 2001Inventors: Edwin C. Bailey, Richard M. Mruk
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Patent number: 6290582Abstract: The invention relates to a sharpening device for sharpening cutting edge tools and the like, comprising two sharpening elements arranged, at a distance from each other in the axial direction, for rotation on a shaft extending along a center axis common to the sharpening elements. The sharpening elements have arms extending radically outwards from the shaft, said device being characterized in that the sharpening elements are arranged relative to each other in such a way, that their respective arms are inclined towards each other so that they intersect their respective paths of rotation, the arms, then, coming from a respective of the two sharpening elements, in an alternating way.Type: GrantFiled: February 16, 2000Date of Patent: September 18, 2001Assignee: Telefonaktiebolaget LM EricssonInventor: Tore Eklund
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Patent number: 6251003Abstract: A hand-held sharpening device for sharpening a blade including an elongated sharpening polygon having a plurality of substantially planar sharpening surfaces for receiving the edge of a blade, opposite ends on the elongated sharpening polygon, a plastic cap covering each of the ends, a graspable extension extending outwardly from one of the caps, and a tie in the form of a chain secured to the graspable extension.Type: GrantFiled: January 31, 2000Date of Patent: June 26, 2001Inventor: Arthur L. LeVine
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Patent number: 6224475Abstract: The present invention is a device for storing and selectively sharpening a knife. The present invention includes a scabbard with opposing first and second ends. An opening is defined in the first end and a passage defined in the scabbard for receiving a knife blade. The device further includes a sharpening device and an engagement device, where the engagement device is in operable communication with the scabbard for selectively moving the sharpening device relative to the scabbard.Type: GrantFiled: February 26, 1999Date of Patent: May 1, 2001Assignee: The Pampered Chef, Ltd.Inventors: David May, Diane Subsits, Timothy Nowack, Daiying Huang
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Patent number: 6117002Abstract: A blade sharpener having a sharpening mechanism that functions to sharpen a blade engaging the mechanism and being moved longitudinally relative to that mechanism. The sharpening mechanism is located within a hollow housing or scabbard for containing the blade, and means is provided to restrain the blade against inadvertent removal from the housing. The blade is moved into and out of the housing through a front end of the housing, and the restraining means becomes operative (automatically) when the blade is fully inserted. Locking means then functions to prevent release of the restraining means, and that locking means includes a plate movable in the longitudinal direction of the housing between locking and unlocking positions. The locking means is moved into the unlocking position by actuation of a press button located at the rear end of the housing, and automatically returns to the locking position when pressure is removed from the press button.Type: GrantFiled: December 3, 1999Date of Patent: September 12, 2000Assignee: McPherson's LimitedInventors: Andrew John Stokes, George Ralph Adkins
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Patent number: 6074293Abstract: Apparatus is described for surface finishing complex and simple surface shapes by abrasion of select zones of the surface, leaving contiguous zones unfinished. The apparatus is simple in construction and required little in training for operation. The apparatus includes an abrasive surface, which in cross-sectioned profile is negative image of the surface zone to be abraded of finished, and a relief surface corresponding to the zone or zone to remain unfinished.Type: GrantFiled: April 8, 1998Date of Patent: June 13, 2000Inventor: Larry P. Bleier
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Patent number: 6059645Abstract: A hand-held sharpening device for sharpening a blade including an elongated sharpening polygon having a plurality of substantially planar sharpening surfaces for receiving the edge of a blade, opposite ends on the elongated sharpening polygon, a plastic cap covering each of the ends, a graspable extension extending outwardly from one of the caps, and a tie in the form of a chain secured to the graspable extension.Type: GrantFiled: April 29, 1998Date of Patent: May 9, 2000Inventor: Arthur L. LeVine
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Patent number: 6048262Abstract: A honing device for culinary knives having a handle assembly formed of a knob portion mounted on the top end of a vertically oriented handle portion. An inverted frusto-conical knife guide is connected to the bottom end of the handle portion. The elongated hone is preferably tubular and it is connected to the bottom end of the knife guide. A coupling inserted into the bottom end of the tubular hone has a rubber friction tip mounted on its bottom end. An elongated draw bar rod has external threads on its top and bottom end. The top end of the draw bar rod passes through aligned bores in the knife guide and the handle portion and is received in a threaded bore in the bottom of the knob portion. The bottom end of the draw bar rod is received in the threaded bore in the top end of the coupling that has a rubber tip in its respective bottom end. The honing device is light weight and easily assembled and disassembled.Type: GrantFiled: February 23, 1999Date of Patent: April 11, 2000Inventor: Ralph Ray
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Patent number: 6009774Abstract: A manual sharpening device is proposed which may easily be operated and which may universally be used. This new manual sharpening device comprises a shaft-shaped supporting body comprising at least a fork-shaped end having two edge projections comprising two inner flank surfaces being inclined in a V-shaped manner towards each other, a tongue-shaped tool arrangement disposed between the edge projections and comprising a sharpening tool having parallel side edges made of hard metal, and a guide head limiting the sharpening tool at the end distant from the supporting body. The guide head has side flank surfaces which are parallel to the respective adjacent inner flank surfaces of the edge projections, at least the guide head being displaceable in the longitudinal direction of the tool arrangement.Type: GrantFiled: December 10, 1997Date of Patent: January 4, 2000Inventor: Karl Liedschreiber
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Patent number: 5993301Abstract: An apparatus to clean gold plated contact surfaces on printed circuit boards uses a printed circuit board guide and cleaning units in contact with the printed circuit board guide. A guide rail on the printed circuit board guide is adapted to guide the printed circuit board having contaminated gold plated contact surfaces. The cleaning units include grindstones to abrade the gold plated contact surfaces and rub off the contaminants. Embodiments are capable of achieving cleaning uniformity, reducing failure rate, and enhancing the quality of the products. The effectiveness of the invention permits operators to carry out other operations during the cleaning process. Practice of the present invention also provides improved operating conditions without problems such as those due to the presence of waste eraser particles.Type: GrantFiled: June 24, 1997Date of Patent: November 30, 1999Assignee: SamSung Electronics Co., Ltd.Inventors: Woo-sig Kim, Choul-su Kim, Masaharu Tsukue
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Patent number: 5989115Abstract: A sharpening guide assembly for use in sharpening ski and snowboard edges includes an angle member and at least one riser member. The angle member includes at least a first outer surface and a second outer surface, an inner edge of the first outer surface adjoining an upper edge of the second outer surface. The riser member is positioned on the first outer surface of the angle member such that a top portion of the riser member extends above the first surface of the angle member. The angle member is formed of a first material and the riser member is formed of a second material, wherein the second material has a hardness which is greater than a hardness of the first material. During a sharpening operation, a sharpening tool is supported on the riser member such that the sharpening tool such as a file member is positioned above the first outer surface of the angle member so as to avoid potential wear causing contact therewith.Type: GrantFiled: February 19, 1998Date of Patent: November 23, 1999Inventor: Donald C. Hodge
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Patent number: 5916018Abstract: A small hand-held device for shaping and sharpening of the ice-contact surfaces of skate blades and blade-type runners of bobsleds and iceboats. The sharpener has two means for guiding blades in its sharpening section: a) a fixed, non-adjustable slot in the body, or b) adjustable guide bars in a sheet-metal or a solid-material body model. The sharpener can also include a centering device for exact centering of the radiused abrader with the center of the skate blade regardless of the sharpening wear of the abrader.Type: GrantFiled: August 25, 1997Date of Patent: June 29, 1999Inventor: Allen Emmerson Watt
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Patent number: 5879229Abstract: A hand held sharpener has two slots to selectively accommodate the blades of ice hockey skates. A two-piece body having stepped inside housing walls accommodate different diameter and length abrading stones. Fasteners releasably holding the members of the body together can be loosened to allow the different stones to be interchanged.Type: GrantFiled: June 18, 1997Date of Patent: March 9, 1999Assignee: Edge Specialities, Inc.Inventor: Bradley J. Anderson
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Patent number: 5810649Abstract: A tool guide for sharpening woodcarving and lathe tools comprises a holder frame having an adjustable clamping member for clamping a portion of a tool against an inner surface thereof, and an adjustable foot member removably connected to the holder frame by a downwardly extending central rod for engaging a work surface which is coplanar with or parallel to a nearby abrasive sharpening surface. The foot member includes an arcuate surface which may be arranged to engage the work surface for sharpening tools having a U-shaped cutting edge profile, and a pair of arc ends which may be arranged to engage the work surface by inverting the foot member for sharpening tools having a straight cutting edge profile. A pair of side rods are spaced on opposite sides of the central rod, whereby distal ends of the side rods and central rod define an angular profile for sharpening tools having a V-shaped cutting edge when the foot member is removed.Type: GrantFiled: April 30, 1997Date of Patent: September 22, 1998Assignee: Barbara OarInventors: Ross C. Oar, Eric J. Oar
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Patent number: 5807167Abstract: A resurfacer for resurfacing a working surface of a foam pad used for polishing auto finishes, in particular, includes a base having a support surface for supporting a polishing pad while it is being driven by a polisher power unit with which the polishing pad is used for the actual polishing operation. The base surface has an abrading section made of, preferably, partially perforated thin steel so that sharp corners protrude a selected height above the base surface and a guide fence for guiding the polishing pad as it is moved across the abrading pad so that it is held true and square, until the polishing pad is provided with a new flat and square working surface. The support surface is of size so that it will support the entire polishing pad while the abrading pad has a width slightly more than one-half the diameter of the polishing pad so that the polishing pad is stably held and can be made true and flat.Type: GrantFiled: October 9, 1996Date of Patent: September 15, 1998Inventor: George F. Walsh
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Patent number: 5782681Abstract: The invention relates to a two part hand held windshield wiper conditioning device with a main body or housing having a male half and a female half having contoured outer surfaces. Both halves of the device are substantially triangular, the male half having three continuous projections, one per side, extending along the edge of its inner surface; and the female half having corresponding slots formed in and proximate the edge of its inner surface. The projections and corresponding slots allow for snug frictional engagement between the male half and the female half One of the projections has a course material adhered thereto, the edges of the male and female half proximate the course material being spaced apart thereby defining a channel sized to receive the windshield wiper blade edge. Both the male and female half have recesses formed in the inner surface, the recesses defining an interior space where a packet is stored when the halves are joined.Type: GrantFiled: December 3, 1996Date of Patent: July 21, 1998Inventor: William Bresnahan
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Patent number: 5706543Abstract: The present invention relates to removing the graphite that accumulates on the rubber eraser attached at the end of a common pencil. The pencil eraser cleaner is provided with a connecting hole to mount on the eraser end of a pencil with means to be held securely and disconnected easily. The pencil eraser cleaner has four concaved cleaning surfaces for controlled rubbing action.Type: GrantFiled: July 21, 1995Date of Patent: January 13, 1998Inventor: Russell R. Lalevee, Sr.
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Patent number: 5700189Abstract: A blade-sharpening apparatus for knives and other cutting tools which uses a ceramic sharpening element. The sharpening element is a recycled aluminum oxide sodium vapor streetlight bulb. The vapor and heat expansion and contraction of the bulb during use as a light causes wear on the bulb and results in the ceramic element becoming more porous, thereby providing an abrasive surface suitable for blade sharpening. A first embodiment of the apparatus comprises a housing with a support substantially along a length of the sharpening element and a cover for enclosing the sharpening element when not in use. In the first embodiment, the sharpening element is supported on both ends. In a second embodiment, the sharpening element is supported on one end by a handle and a sleeve is provided to enclose the sharpening element when not in use. The sleeve may be attached to a portion of the handle opposite the sharpening element when in an operating position.Type: GrantFiled: July 8, 1996Date of Patent: December 23, 1997Inventor: Jimmie L. Farris
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Patent number: 5667434Abstract: In order to achieve precision in sharpening, particularly for dental instruments, a sharpening device includes a base having a generally upwardly extending hand grip portion wherein the base is adapted to be position on a generally horizontal supporting surface. The sharpening device also includes a sharpening stone or the like operatively associated with the base together with a retainer for removably retaining the sharpening stone in at least one angular position relative to the generally horizontal supporting surface.Type: GrantFiled: December 6, 1995Date of Patent: September 16, 1997Inventors: John H. Prusaitis, Timothy J. Prusaitis
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Patent number: 5655959Abstract: Apparatus for providing a sharpened edge on an elongated cutting tool comprising a base member having an elongated slot therein and a pair of elongated sharpening elements each pivotally mounted on the base member at opposite sides of the upper end portion of the slot and extending in crossed relation and intersecting at the slot as a cutting tool is drawn downwardly and outwardly through the slot. Separate counterweights are connected to the upper end portions of each of the sharpening elements to resist their downward pivoting movement as the cutting tool is so drawn through the slot. Separate eccentrically mounted cams are disposed between each cutting tool and its axis of pivot to adjustably control the extent of swinging movement of each of the sharpening elements in both directions.Type: GrantFiled: May 11, 1995Date of Patent: August 12, 1997Inventor: John Juranitch
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Patent number: 5582535Abstract: An apparatus for sharpening the edge of an elongated object includes a housing having an exposed sharpening section with a sharpening element in the sharpening section. The sharpening element is formed from a single abrasive coated sharpening element having a pair of abrasive coated planar comb-like structures formed along opposing sides of the sharpening element. The sharpening element is bent into an X configuration wherein the alternating teeth and slots interdigitate to form the X-shaped configuration and form a sharpening angle between the interdigitating teeth. The sharpening angle has a bisection line with an elongated interrupted sharpening surface.Type: GrantFiled: June 6, 1995Date of Patent: December 10, 1996Assignee: Edgecraft CorporationInventor: Daniel D. Friel
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Patent number: 5505656Abstract: Apparatus for manually sharpening dental instruments which require honing at a specific angle, comprising a planar base member having flat parallel sides and an elongated slot, a planar honing stone having flat parallel honing surfaces disposed within the slot of the base member perpendicularly to the plane of the base member and a spring clip positioned between one end of the slot and the honing stone for providing a biasing force to maintain the honing stone in pressure contact with the other end of the base member slot.Type: GrantFiled: January 14, 1994Date of Patent: April 9, 1996Inventor: Steven B. Moore
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Patent number: 5477753Abstract: A blade sharpening device is convertible between a sharpening configuration and a storage configuration. The device has an elongated body with a lower surface for resting on a support surface and an upper surface with a pair of receiving holes disposed thereon. Each of the receiving holes receives one elongated abrasive sharpening member so that the members can be supported in a V-shaped sharpening pattern when the device is in its sharpening configuration. The body also has a pair of elongated storage chambers extending along the longitudinal length of the body. Each of the storage chambers has an opening disposed on one end of the body. Each of the storage chambers receives one of the sharpening members through its respective opening when the device is in its storage configuration. A cover is pivotally secured to the body at an intermediate location and has an open position corresponding to the sharpening configuration and a closed position corresponding to the storage configuration.Type: GrantFiled: January 30, 1995Date of Patent: December 26, 1995Assignee: Lohman Mfg. Co., Inc.Inventors: Tony E. Branscum, Terry L. Butler
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Patent number: 5478272Abstract: An apparatus for sharpening a blade is provided having a base member with a slot for receiving and guiding a blade to be sharpened, first and second apertures disposed on either side of the slot, first and second resilient biasing members disposed within each of the first and second apertures such that each of the biasing members is substantially entirely enclosed within the base member and protected from debris and contaminants. Sharpening members are connected to the biasing members and are rotatable about a central axis of each respective aperture between a first and second position, which rotation is limited by a stop member as the blade passes from one end of the slot toward the other.Type: GrantFiled: July 7, 1994Date of Patent: December 26, 1995Assignee: Cozzini, Inc.Inventors: Ivo Cozzini, Tom Spino, Johnathan Lopez
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Patent number: 5462476Abstract: The blade sharpening device is an adjustable multi-angle edge sharpening unit comprised of a base connected to a rotatable sharpening stone table and a vertically adjustable blade support table. A hand movable sharpening stone is positioned on the sharpening stone table and the blade to be sharpened positioned on the blade support table, with the blade in grinding contact with the sharpening stone. An angle selection chart on the base allows vertical movement of the blade support table in conjunction with rotational adjustment of the sharpening stone table to accurately select a specific angle at which the blade edge is ground. A scissors adapter unit may be attached to the blade support table which permits the sharpening of scissors blades. The scissors blade is pressed against the scissors adapter, the blade being in grinding contact with the sharpening stone in much the same manner as knife blades are sharpened by the device.Type: GrantFiled: September 8, 1994Date of Patent: October 31, 1995Inventor: Roy W. Bohn
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Patent number: 5458534Abstract: A sharpener which has a main body portion to hold and support a sharpening stone 1. The main body is connected at one of its ends to a front guide plate and on the opposite end to a back guide plate. These two plates, in addition to guiding the direction of a knife blade during sharpening, also act to hold the stone in position. The back guide plate also acts as a finger guard and as a handle means for the sharpener.Type: GrantFiled: August 26, 1994Date of Patent: October 17, 1995Inventors: Antonino Campione, William M. Handel