Rotary Reciprocating Tool Patents (Class 451/421)
  • Patent number: 9474302
    Abstract: A cutting apparatus including a grinder for sharpening knives in the cutting assembly is disclosed. The cutting apparatus includes a mouth for delivering the material to be cut to a cutting position, a cutting drum having at least one knife having a cutting edge, the cutting drum having a drive system and being rotatable about an axis. A grinder is described for removing material from the cutting edge of a knife, the grinder brought into contact with the cutting edge with a movement in a first direction substantially parallel to the axis of rotation of the cutting drum and with a movement in a second direction substantially parallel to the axis of rotation of the cutting drum, the grinder configured to move in the first direction at a first speed and move in the second direction at a second speed, the first speed different to the second speed.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: October 25, 2016
    Assignee: Dickinson Legg Limited
    Inventor: Thomas Henry White
  • Patent number: 9314893
    Abstract: The present invention is a blade sharpening fixture, tool and kit for use with logging equipment with a rotary drum that has dozens of staggered blades mounted thereupon. The sharpening tool clamps onto a single blade of the logging equipment while the blade is still mounted on the rotary drum, so that the blade may be sharpened in the field. The sharpening tool includes a sharpening fixture and a grinder. The sharpening fixture includes a blade clamp for clamping onto the blade; a track attached to a sloped surface that can be positioned parallel or perpendicular to the blade; and a grinder connector assembly for securing the grinder securely and slidably to the track.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: April 19, 2016
    Inventors: Stephen A. Montgomery, Paul Terry
  • Patent number: 9227288
    Abstract: A honing apparatus includes a sharpening stone that has a sharpening surface configured to sharpen the edge of the blade upon engaging contact with the edge of the blade. A frame is operatively coupled to the sharpening stone, and a weight element is supported by the frame and positioned so as to urge the sharpening stone toward the edge of the blade. The frame may be pivotally coupled to a fixed element at a pivoting location, and the weight element may be positioned so as to create a moment about the pivoting location, with the moment urging the sharpening stone toward the edge of the blade.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: January 5, 2016
    Assignee: SCA HYGIENE PRODUCTS AB
    Inventors: Arno Robert Arndt, Lon Martin King
  • Patent number: 9028295
    Abstract: A grinder for sharpening the blades of reel mowers automatically to grind the underside of the blade of the reel mower.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: May 12, 2015
    Assignee: Bernhard and Company, Ltd.
    Inventors: Paul Bradnam, Gary Bonfield
  • Publication number: 20090203298
    Abstract: A device is disclosed for grinding reel type mower bedknives and blades of rotary type and reel type mowers. The device is capable of manually relief grinding reel blades on an intact mower, and in various stages of disassembly, to a bare reel stripped of its housing, with virtually any relief angle. The device can manually and semiautomatically spin grind a reel type mower reel while the reel is attached to the complete mower or if the reel and supporting structure are removed to a bench, with no further disassembly required. The device can manually grind the front face of a reel type mower bedknife while the bedknife remains attached to the reel housing and can grind the front and top face of a bedknife when it is removed. It can also grind rotary type blades and a variety of other straight edged tools.
    Type: Application
    Filed: January 26, 2009
    Publication date: August 13, 2009
    Inventor: Dean David Rasmussen
  • Patent number: 6942553
    Abstract: A portable automated sharpening apparatus is structured to sharpen one or more of a plurality of blades of an operational reel blade mechanism, the apparatus including a sharpening assembly with a sharpening element movably interconnected to a sharpening motor. The apparatus also includes a drive assembly having a drive member which at least partially defines a drive path, the drive member further structured to transport the sharpening assembly along at least a portion of the drive path. A support assembly is structured to removably yet securely interconnect at least the drive assembly to the operational reel blade mechanism, and a guide assembly maintains a sharpening axis of the sharpening assembly substantially parallel to a reel blade axis. Further, the apparatus includes a control assembly to allow automatic alternation of a direction of transport of the sharpening assembly, in a reciprocating manner.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: September 13, 2005
    Inventor: Massimiliano Salafia
  • Patent number: 6814652
    Abstract: A method for sharpening the cutting knives of a knife ring chipper, which includes a knife ring and a number of knife units, the units in turn containing knives and holding plates. The knife ring is removed from the knife ring chipper, the knife units of the knife ring chipper are removed from the knife ring and the knife units are disassembled. The dull knives are moved to a first buffer station and are stored and then moved to a grinder and sharpened. The sharpened knives are moved to a second buffer station and are stored, and the sharpened knives are then mounted onto holding plates in knife units. The knife units are incorporated into a knife ring and the knife ring is incorporated into a knife ring chipper.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: November 9, 2004
    Assignee: B. Maier Zerkleinerungstechnik GmbH
    Inventor: Robert Loth
  • Patent number: 6699103
    Abstract: The present invention is a device for relief grinding a blade having a radially outer edge of an elongated length and first and second faces, with the first and second faces extending generally radially from a reel axis. The device includes a rotatable grinding shaft, a grinding wheel, a grinding wheel guide assembly, a guide finger, and a first non-sliding stabilizer.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: March 2, 2004
    Assignee: Foley-Belsaw Company
    Inventors: James H. Dieck, Gregory A. Veenendall
  • Patent number: 6561886
    Abstract: A retainer for retaining an abrasive pad on a lens making machine and an abrasive pad adapted to such retention comprises a retainer nestable with a lap of a lens making machine wherein when such retainer is nested, a pad placed upon the lap before nesting will be trapped in the desired position. The pad of the invention includes radially outwardly extending members beyond the working area of the pad whose purpose is to be trapped by the retainer. The invention enables automatic loading and unloading of pads on the lens making machine.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: May 13, 2003
    Assignee: Gerber Coburn Optical Inc.
    Inventors: Douglas J. Roberts, Jonathan Dooley, Lawrence Wolfson, Michael J. Goulet, Jeffrey Murray
  • Patent number: 6503135
    Abstract: A chopper drum includes a plurality of knives distributed along its width and about its circumference. A grinding device is provided for automatically sharpening the knives, with a grinding stone of the grinding device having its movement automatically controlled by a microprocessor, which receives signals from an actual shape sensor and compares it with a stored desired shape and generates control signals, such that it shapes the profile of the chopper drum to at least approximate the desired shape.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: January 7, 2003
    Assignee: Deere & Company
    Inventors: Steffen Clauss, Stanley Jerome Johnson
  • Patent number: 6290581
    Abstract: A grinding system (10) for sharpening the blades in cutting reels of mowing units incorporates an articulated grinding head (90) mounted for movement on a carriage (92). A unique index/guide assembly (160) is mounted on the grinding head (90). The index/guide assembly (160) includes a fixed guide finger (178) and associated movable index finger (180) for automatic sequential grinding of the blades in the spin grind mode.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: September 18, 2001
    Assignee: Foley-Belsaw Company
    Inventors: James H. Dieck, Roger Rosenquist
  • Patent number: 6010394
    Abstract: A grinding system (10) for sharpening the blades in cutting reels of mowing units incorporates an articulated grinding head (90) mounted for movement on a carriage (92). A unique index/guide assembly (160) is mounted on the grinding head (90). The index/guide assembly (160) includes a fixed guide finger (178) and associated movable index finger (180) for automatic sequential grinding of the blades in the spin grind mode.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: January 4, 2000
    Assignee: Foley-Belsaw Company
    Inventors: James H. Dieck, Roger K. Rosenquist
  • Patent number: 5967886
    Abstract: A hand power tool for flat machining has a machine housing, a motor accommodated in the machine housing, a toolholder mounted on the housing, a moveable tool carried by the toolholder and formed as a grinding plate with a triangular base surface for receiving a triangular grinding disk, the toolholder having a substantially triangular base surface substantially corresponding to the base surface of the grinding plate, the toolholder having a region against which the grinding plate is supported and on which the grinding plate is mounted on the toolholder so as to be locked on the toolholder and to be removable from the toolholder without an auxiliary tool.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: October 19, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Steffen Wuensch, Joao Bergner
  • Patent number: 5942037
    Abstract: A nozzle having a series of orifices along a longitudinal length of the nozzle for processing a substrate and which is rotatably adjustable. By the nozzle design of the present invention, liquid is properly distributed along the longitudinal length of the nozzle independently of the angle of the aerosol spray. This allows for the generation of a uniform aerosol stream that is independent of spray angle. The nozzle design of the present invention improves the uniform distribution of liquid within the nozzle, which in addition to providing a more uniform liquid pooling, also substantially eliminates temporal non-uniformities across the nozzle length. Moreover, the present invention is also directed to a nozzle that is translatable in the direction toward or away from the substrate to be processed or parallel to the substrate surface.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: August 24, 1999
    Assignee: FSI International, Inc.
    Inventors: Thomas J. Wagener, Kevin L. Siefering, Pamela A. Kunkel, James F. Weygand, Gregory P. Thomes
  • Patent number: 5727991
    Abstract: An apparatus and method for sharpening machine tool cutter blades in situ is disclosed. A connector adjustably connects a powered sharpening device to the apparatus. Further adjustment of the apparatus relative to the blades is provided by a body member mounting adjustable arms. One of the arms engages the back of the blade being sharpened, thereby providing a reliable and true reference. A second embodiment sharpens rotary saw blades while a third embodiment sharpens router and shaper bits.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: March 17, 1998
    Inventor: Richard E. Main
  • Patent number: 5688161
    Abstract: A sharpening and cleaning apparatus for sharpening scalloped-edged blades in a carton slitting machine includes at least two rotating cylindrical hones mounted on a pneumatically controlled actuator, and a pair of blade cleaning brushes mounted on a separate actuator. A sharpening operation is initiated by a machine operator as needed to maintain blade sharpness, and is performed automatically by the apparatus controls. The hone actuator positions the rotating hones in contact with opposing sides of a cutting edge of the slitting blade as the blade moves past the hones at reduced speed. A first hone is rotated in a direction opposite to the direction of the blade and a second hone is rotated in the same direction of the blade. During sharpening, the hones execute several reciprocating axial movements to stroke the blade. Prior to the operation of the hones the actuator positions the brushes in contact with the blade and causes the brushes to rotate to remove debris from the blade.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: November 18, 1997
    Assignee: Philip Morris Incorporated
    Inventors: J. Lee Gregory, III, William H. Stevens, II
  • Patent number: 5435771
    Abstract: A sharpening apparatus for sharpening scalloped-edged blades in a carton slitting machine includes at least two rotating cylindrical hones mounted on a pneumatically controlled actuator. A sharpening operation is initiated by a machine operator as needed to maintain blade sharpness, and is performed automatically by the apparatus controls. The actuator positions the rotating hones in contact with opposing sides of a cutting edge of the slitting blade as the blade moves past the hones at reduced speed. A first hone is rotated in a direction opposite to the direction of the blade and a second hone is rotated in the same direction of the blade. During sharpening, the hones execute several reciprocating axial movements to stroke the blade.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 25, 1995
    Assignee: Philip Morris Incorporated
    Inventor: J. Lee Gregory