Portable Patents (Class 451/378)
  • Patent number: 9168640
    Abstract: A holder for sharpening and faceting includes a cylindrical body having a first end, a second end and an opening formed transversely through the body between the first end and the second end. The opening has a tool support surface. An adjustable clamping component has a rotatably adjustable fastening plate positioned within the opening, where the fastening plate has a top surface and a tool engaging surface to hold the tool against the tool support surface and a plurality of predefined plate end openings. A plurality of roller members are disposed within a longitudinal raceway formed in a lower portion of the body below the opening. The roller members are aligned to roll parallel to the longitudinal axis of the cylindrical body and the axis of rotation of the roller members is perpendicular to the longitudinal axis of the cylindrical body.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: October 27, 2015
    Inventor: Harrelson Stanley
  • Patent number: 7572171
    Abstract: A cutting-tool holder (1) used for grinding includes a holder body (10) including a pair of pinching pieces (11, 11) biased to each other; and a pair of handgrips (30, 30) provided on the holder body (10) which sets the pair of pinching pieces (11, 11) apart from each other by applying force to the handgrips (30, 30). The holder body (10) may further include a connecting portion (12) with a nearly C-shaped cross section which connects base end parts (11c, 11c) of the pinching pieces (11, 11). Each handgrip (30) may be configured so that one end part (30a) is fixed to the pinching piece (11), the middle part penetrates the connecting portion (12), and the other end part extends away from the pinching piece (11).
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: August 11, 2009
    Assignee: Master Cutlery Corporation
    Inventor: Mino Tsuchida
  • Patent number: 7182678
    Abstract: A clamping device is provided for the exact manual resharpening of knife blades (6) on a whetstone (5). The knife blade (6) is mounted in the clamping device (9) and at least one support contour (2, 14, 14a) of the clamping device (9) is designed such that it is congruent with the contour of the cutting edge of the knife blade (6) or that it extends equidistantly from the contour of the cutting edge of the knife blade (6). The present invention is characterized in that the support contour (2, 14, 14a) has an end piece provided with an arch (14) or an end piece provided with a radius (14a).
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: February 27, 2007
    Inventor: Woitek Keska
  • Patent number: 7056195
    Abstract: A sharpening device for the blade of a tool such as a chisel or plane is in two parts. The first is a jig into which the blade is inserted with its tapered end projecting some distance beyond the jig. This distance is related to the angle to which the blade is to be sharpened. The second part is a marked reference member which is brought into a position alongside the jig. The blade is advanced through the jig until its tip reaches a marking on the reference member corresponding to the required sharpening angle for the tool. The tool is then clamped in the jig. The jig incorporates a roller which rolls on the sharpening stone while the tapered tip of the blade is sharpened by contact with the stone.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: June 6, 2006
    Inventor: Geoffrey John Hamilton Evans
  • Patent number: 7052385
    Abstract: A device for use in the manual sharpening of arrow broadheads, razor blades and the like includes a unique symmetrical clamp and axle assembly having interchangeable, matched pairs of special purpose jaw members for gripping blades of differing configurations. When coupled to the frame, the clamp and axle assembly is freely rotatable, and this free rotation automatically aligns the length of the edge of the blade with the surface of a whetstone. Additionally these rotational and self-aligning capability enable the user to service both sides of the blade's edge with a single blade clamping operation, by manually rotating the clamp 180 degrees between passes along the surface of the whetstone.
    Type: Grant
    Filed: September 6, 2003
    Date of Patent: May 30, 2006
    Inventor: Ronald Swartz
  • Publication number: 20040097179
    Abstract: An apparatus for sharpening a blade 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 in association with each of the first and second apertures such that each of the biasing members is substantially entirely enclosed within rear spring caps 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. The durability of the base is enhanced with top guide rails so a blade entering the slot cannot cut into the base member.
    Type: Application
    Filed: November 14, 2002
    Publication date: May 20, 2004
    Inventor: Ivo Cozzini
  • Patent number: 6383056
    Abstract: A plane constructed shaft system used to replace the cylindrical shaft in precision polishing apparatuses. Thus, the accuracy, productivity and cost of polishing apparatuses are improved. The shaft system has a four-surface hollow prism bushing and a four-surface prism shaft that can slide freely within the bushing. The polishing pressure is maintained by the weights of the shaft plus the parts attached to the shaft, but this pressure can be reduced by adjusting a load adjusting nut which compresses a loading spring acting on a collar stop attached to the shaft. The actual polishing pressure can be calculated according to the position of the load adjusting nut. Furthermore, the stock removal amount can be controlled by a stock removal stop ring which is mounted on the collar stop and can be adjusted up and down as required.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: May 7, 2002
    Inventor: Yin Ming Wang
  • Patent number: 6254455
    Abstract: A jig (10) for use in sharpening a cutting implement used in wood turning including a tubular body or housing (12) being mountable nearby a grinder. A tool holder (11) is located by and guided within the housing (12) so as to be pivotable about a longitudinal axis of the housing and slidable along that axis. Part of the tool passes through the housing (12) and holder (11), being attached to holder (11) so as to present a tip of the tool toward the grinder. The tool holder (11) further has a guide boss (14) engageable with a guide surface (13) on the housing such that throughout engagement a correlation exists between linear movement of the tool along the longitudinal axis and pivotal movement of the tool about the longitudinal axis, so as to enable a desired, controlled interaction between the tip of the tool and the grinder.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: July 3, 2001
    Inventors: Michael Irvine, John Arthur Crawford
  • Patent number: 6231427
    Abstract: A wafer polisher and method for the chemical mechanical planarization of semiconductor wafers. The polisher includes a wafer holder for supporting the semiconductor wafer and a linear polishing assembly having a polishing member positioned to engage the surface of the wafer. The polishing member is movable in a linear direction relative to the wafer surface to uniformly polish the surface of the wafer. A pivotal alignment device may be used to pivotally support one of the wafer holder and the polishing member relative to the other of the wafer holder and the polishing member with the surface of the wafer and the polishing member retained in parallel alignment during operation of the polisher. The polisher optionally includes a conditioning station for conditioning the polishing member.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: May 15, 2001
    Assignee: Lam Research Corporation
    Inventors: Homayoun Talieh, David Edwin Weldon
  • Patent number: 6099392
    Abstract: A tool for preparing an optical fiber end-face includes a station having a base with a fiber bender and a scribe for cleaving a fiber. The base may include a polishing surface and a well that serves as a fiber shard collector. A cleaver door may be attached to the base to be rotatable between an open position and a closed position covering the shard collector and may include a mount for releasably attaching a fiber handling tool or puck. The puck includes a body, a latch attached by a hinge to the body, and a face comprising a plate pivotally attached to an end of the body and having a fiber port extending through the plate. The body of the puck includes a nest for receiving a fiber holder for securing a fiber with an end of the fiber extending through the port of the face. The nest includes a reference stop and a means for urging the fiber holder against the reference stop when the latch is rotated to a closed position covering the body.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: August 8, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Gordon Wiegand, William G. Allen, Larry R. Cox, Charles M. Mansfield
  • Patent number: 5813902
    Abstract: A device for preparing an optical fiber for interconnection includes means for grasping the optical fiber at a first location along the optical fiber, means for scribing and breaking the optical fiber a first select distance from the first location, the means for scribing and breaking including guides for supporting and sliding the means for grasping along the guides in fixed relationship to the means for scribing and breaking, and means for polishing the optical fiber as broken, the means for polishing being connected to the means for breaking. The device also includes a polishing surface fixedly connected to the means for grasping. The polishing surface supports the means for grasping at a second select distance from the first location, the second select distance being shorter than the first select distance. The optical fiber is linearly moveable with respect to the polishing surface.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: September 29, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Gordon Wiegand
  • Patent number: 5810649
    Abstract: 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: Grant
    Filed: April 30, 1997
    Date of Patent: September 22, 1998
    Assignee: Barbara Oar
    Inventors: Ross C. Oar, Eric J. Oar
  • Patent number: 5711701
    Abstract: A polishing fixture (20) having nests (48) for releasably holding optical fiber connectors during polishing, inclined beams (44a) being deflectable to narrow the nests (48) and hold optical fiber connectors received in the nests (48), and a force transmitting body (26) avoiding jamming against the inclined beams (44a) by being moveable beside each of the beams (44a) in a direction that unopposes the direction toward which deflected portions of the inclined beams (44a) point.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: January 27, 1998
    Assignee: The Whitaker Corporation
    Inventors: Soren Grinderslev, Randall B. Paul
  • Patent number: 5679065
    Abstract: The present invention is a carrier ring for a semiconductor wafer carrier in which an exposed surface of the carrier ring facing a polishing pad either slopes, is stepped, or is curved away from the polishing pad from the inner periphery to the outer periphery of the carrier ring. As a result, the exposed surface of the carrier ring is spaced farther from the polishing pad adjacent its outer periphery than it is adjacent its inner periphery, thereby increasing the volume and uniformity of slurry transported beneath the wafer.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: October 21, 1997
    Assignee: Micron Technology, Inc.
    Inventor: Gary O. Henderson
  • Patent number: 5643064
    Abstract: A polishing fixture (20) for use with a polishing machine comprises a plurality of clamping assemblies (41) (22). The fixture (20) includes a connector holder plate (28) which has a perimeter edge (30). A plurality of slots (42) obliquely extend inwardly from the perimeter edge (30) through the plate (28). A force transmitting body (26) having an internal rim (32) is positioned around the perimeter edge (30) of the connector holder plate (28) so as to provide a camming action against convex cam surfaces (52). The camming action of the internal rim (32) of the force transmitting body (26) and the convex cam surface (52) on the perimeter (30) of the connector holder plate (28) deflect a corresponding beam (44) inwardly to clamp a connector (49) positioned in a corresponding one of the camping assemblies (41).
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: July 1, 1997
    Assignee: The Whitaker Corporation
    Inventors: Soren Grinderslev, Nancy Lebeis Miller, Randall B. Paul
  • Patent number: 5637036
    Abstract: An adapter (11) is of channel shape, having longitudinal projections (25) at its respective sides for engagement with undercut grooves (24) in a face of a casing of a powered grinding tool (10) with which the adapter is intended to be fitted to sharpened chisels or other planar blades, in use, by means of a grinding wheel (20) of the tool. The adapter has an angularly adjustable guide plate (63) which carrier a slidable plate (70) having magnetic means (71a) for holding an attracted blade of an implement to be sharpened, the angle of the guide plate (63) causing the blade to be correctly sharpened by the wheel (20), in use, as the plate (70) is reciprocated across the wheel with the blade held correctly thereon.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: June 10, 1997
    Assignee: Turner Intellectual Property Limited
    Inventor: Paul S. Hepworth
  • Patent number: 5620363
    Abstract: A powered grinding tool (10) comprising a casing (16) in which is an electric motor (40) which drives a shaft (39) on which is carried a grinding wheel (20) at a work station. The tool casing has undercut slots (24) at opposite sides of its front face for automatic vertical sliding engagement with a selected one of a number of adapters (11-13), each adapter providing a location which, in use, is disposed relative to the grinding wheel so that there is correct positioning between part of an implement that said location and the grinding wheel, for said part to be worked by the wheel. The casing can have the slots (24) on at least one other of its faces to store adapters when they are not in use.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: April 15, 1997
    Assignee: Turner Intellectual Property Limited
    Inventor: Paul S. Hepworth
  • Patent number: 5618028
    Abstract: An adapter (12) is of channel shape having longitudinal projections (25) at its respective sides for engagement with undercut grooves (24) in a face of a casing of a powered grinding tool (10) with which the adapter is intended to be fitter to sharpen high speed drill fits, in use, by means of a grinding wheel (20) of the tool. The adapter has a rearwardly directed head (76) at its top, the head having a rotatable dial (85) mounted therein which is provided with a multiplicity of differently sized drill bit receiving openings (87), so that, in use, by angularly moving the dial, the opening for a particular size of drill bit can be brought to a location where the drill bit can be inserted in the hole and correctly worked by the grinding wheel, when the adapted is fitted to the tool.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: April 8, 1997
    Assignee: Turner Intellectual Property Limited
    Inventor: Paul S. Hepworth
  • Patent number: 5575711
    Abstract: This device is a low cost and an easy to use fixture for sharpening wood jointer and thickness planer blades or knives with extreme accuracy and sharpness. The device holds two blades at opposing angles creating a flat plane upon which a flat sharpening stone or abrasive device can employ repeated reciprocal movements. The holder is made of a rigid material with a bolt down clamp, which secures the two individual blades at the proper and precise angle. The design also employs individual adjustment screws, which elevates each end of both blades, allowing the user to sharpen blades of various widths. Once the rough sharpening is complete the device is then staged for the final honing of the blades. This feature makes it possible to sharpen the blades razor sharp as well as grind a secondary bevel on the blade.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: November 19, 1996
    Inventor: Dale E. Hupp