Patents Examined by Maurina T. Rachuba
  • Patent number: 6772750
    Abstract: A device for deflecting a saw cable (13) of a cable saw and having a support (1) and at least one deflection member (2) securable to the support (1) and having two support arms (6), between which a deflection roller (3) is rotatably supported, and two guide surfaces (18) formed in the region of the deflection member (2) projecting beyond the deflection roller (3) for preventing the saw cable (13) from falling off of the deflection roller (3).
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: August 10, 2004
    Assignee: Hilti Aktiengesellschaft
    Inventors: Josef Plattner, Hans-Jörg Rieger
  • Patent number: 6648738
    Abstract: Disclosed is a grinding fluid supply device of a lens grinding apparatus. The grinding fluid supply device includes first grinding fluid supply means for supplying a grinding fluid in a tangent direction of a circular grinding wheel, which has a grinding surface formed on its circumferential surface, with an interval above a grinding surface and allows an upper portion and a rear side portion of the grinding surface to be covered with a curtain of the grinding fluid spaced from the grinding wheel when a processed lens is subjected to a grind processing with the grinding surface of the grinding wheel by rotatively driving the grinding wheel around an axis; and second grinding fluid supply means for insufflating the grinding fluid to the grinding surface.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: November 18, 2003
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Yasuhito Eto, Kenichi Watanabe, Yoshiyuki Hatano
  • Patent number: 5957019
    Abstract: The invention relates to a cutting apparatus for cutting out at least one strip from a roll with rolled up sheet like material. The apparatus is equipped with finger means which lift out a suitable distance from the roll the layer from which the strip will be cut out. A cutting tool means is placed near each finger means in order to cut through the material. Each cutting tool means is a motordriven, rotating blade driven with a peripheral speed which is considerably higher than the speed with which the cutting apparatus is moved along the roll, or an oscillating knife or the like. During the cutting out operation the cut out strip is rolled up on a rotating roll core means with a torque-adapted rotation. A strip-tensioning arrangement distributes the tensile forces from the rotating roll core means to the strip at the middle of the width of the strip and is placed at the middle of the width of the strip between the cutting tool means and the roll core means.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: September 28, 1999
    Assignee: AB Lorentzen & Wettre
    Inventor: Torgeir Hanaas
  • Patent number: 5896795
    Abstract: A scrap cutting assembly for use in a reciprocating press in which a cutter is carried on a ram which reciprocates with respect to a fixed base to form and cut material passing through the press includes an exit plate mounted on the press base adjacent the material exit point and a shutter spring and backing spring attached to the exit plate. The exit plate has a tapered bottom surface which tapers upwardly toward the ram and the shutter spring and backing spring are attached to and lie along the bottom tapered surface with one end of the shutter spring extending beyond the end of the exit plate and slightly above the top surface thereof so as to support the material as it is fed through the press. The shutter spring is depressed by the cutter as the ram and cutter descend to sever the material.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: April 27, 1999
    Assignee: Redicon Corporation
    Inventors: David E. Harhay, Richard A. Mackey
  • Patent number: 5887506
    Abstract: A high speed rotary cutter assembly for cutting sheets of elastomeric materials wherein a rotary blade is affixedly mounted on one end of a spindle and rotates therewith at a rotational speed greater than 2000 rpm. The rotary blade includes a generally planar cutting surface and a tapered back surface to provide a clean cut and minimize abrasion of the cut surface. The rotary blade further includes between 4 and 40 peripheral lobes, each having an attack surface and a trailing surface. The trailing surface is cut more sharply than the attack surface to provide relief to the cut elastomeric material. The spindle includes a spindle bore which communicates cooling air to the rotary blade. The rotary cutter assembly also includes preloaded, permanently lubricated, angular contact ball bearings and a labyrinth seal to provide high speed operation without heat build-up.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: March 30, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Stephen Bernard Murphy
  • Patent number: 5884543
    Abstract: A cutting machine which includes a work table made up of numerous hollow slats laid side to side and end to end, and having air holes for providing an air cushion as well as workpiece sensors in their upper surface, the sensors being associated with controls such that an air curtain is provided under the workpiece to be cut thereby keeping the workpiece from contacting the flat upper surface of the slats by air blown through the air holes located only in those slats, both longitudinally and laterally, above which the workpiece resides, and not providing air to those slats which do not sense any part of a workpiece residing above it.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 23, 1999
    Assignee: Selco S.r.l.
    Inventor: Valter Naldi
  • Patent number: 5871313
    Abstract: A cutting assembly and an apparatus for self-aligned chamfering of a workpiece are disclosed. The chamfering apparatus includes a mechanism for releasably securing the workpiece in preparation for a chamfering thereof, a cutting assembly, and a mechanism for moving the cutting assembly proximate the securing mechanism between a first position and a second position, wherein the cutting assembly traverses along an edge portion of the workpiece to be chamfered.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: February 16, 1999
    Assignee: International Business Machines Corporation
    Inventors: Anton Nenadic, David Scott Graboski, William A. Cavaliere, James Edward Tersigni
  • Patent number: 5868053
    Abstract: Apparatus for cutting carpet mounted on a supporting surface into elongated strips includes a frame having forward and rearward ends, a handle extending from the frame for guiding and maneuvering the apparatus, a horizontally disposed drive roller, rotatable about a drive roller axis mounted between the forward and rearward frame ends for propelling the apparatus in a forward direction as the drive roller is rotated engaging a plurality of generally radially extending carpet engagement members for non-slippingly engaging the carpet between the drive roller and supporting surface, and a pair of knives spacedly mounted about the forward end of the apparatus for cutting the carpet into an elongated strip as the carpet stripping apparatus is propelled forward.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: February 9, 1999
    Inventor: Mark S. Foltz
  • Patent number: 5865084
    Abstract: A cassette (10) for photosensitive web material includes a hollow housing (12) having a peripheral wall (16); an exit slit (42) extending through the peripheral wall; a device (20), located within the housing, for rotatably supporting a roll (22, 24) of web material; a mechanism (32, 38), located within the housing, for engaging a lead end (26) of a web material to drive the web material through the exit slit; a knife blade (134, 136) having a cutting edge (138) extended at an acute angle to the exit slit; a recess (132) for slidably mounting the blade for movement between a first position in which the exit slit is open, and a second position in which both the web material has been cut by the cutting edge and the exit slit has been closed by the blade to prevent entry of light into the housing through the exit slit; and a knife bed (142, 144) fixedly mounted on the housing, the blade being in sliding engagement with the knife bed, whereby the blade and the knife bed cooperate to scissor the web material as th
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Jeffrey Charles Robertson, Bradley Stephen Bush, Eric Peschan Hochreiter
  • Patent number: 5865079
    Abstract: A miter saw including a base having a support surface for supporting thereon a workpiece and a turntable mounted on the base for rotation about a generally vertical axis. A support is mounted on the turntable for movement therewith and a saw arm is mounted on the support for pivotal movement about a horizontal bevel angle axis such that the saw arm is adjustable to cut the workpiece at a selected bevel angle, and the saw arm being mounted on the support for pivotal movement about a second horizontal axis perpendicular to the bevel angle axis to allow movement of the saw arm between cutting and non-cutting positions. A reversible fence is removably connected to the base to support the workpiece on the base. The fence has opposite ends such that one end has a vertical edge portion for supporting the workpiece during conventional miter cutting of the workpiece and the other end has an angled edge portion for supporting the workpiece during compound miter cutting of the workpiece.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: February 2, 1999
    Assignee: Milwaukee Electric Tool Corporation
    Inventor: Andrew L. Itzov
  • Patent number: 5865080
    Abstract: The board positioning device of the present invention selectively positions in a lateral direction in a generally horizontal plane a board translating in a longitudinal direction in the horizontal plane, wherein the board is aligned along its length in the lateral direction, and the device includes a flexible fence lying in the generally horizontal plane, a fence positioner for selectively positioning the flexible fence in the lateral direction in the generally horizontal plane along a transition path as determined by an optimizer whereby the board may be laterally selectively positioned optimally relative to trimmer saws located downstream from the flexible fence in the longitudinal direction when the board is urged laterally against the flexible fence by lateral ending rolls.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: February 2, 1999
    Assignee: Newnes Machine Ltd.
    Inventor: James G. Jackson
  • Patent number: 5862727
    Abstract: A laser arbor is provided that will display a cutting line on a work piece to be cut by a rotary saw. The laser is operated by a centrifugal switch mounted within the laser arbor along with a laser diode or the like and a battery. Because of the rotation of the laser with the blade and the persistence of the human eye, the moving light spot from the laser appears as a single line, hence it is not necessary as in the prior art to produce light divergence in the plane parallel to the blade plane. For that purpose, it is preferable to employ a light source having a wavelength that lies in a region to which the eye is sensitive, which in practice will typically mean a wavelength in the upper region of the red. Placement of the laser inwardly from the cutting surface of the blade eliminates the danger of any damage occurring to the laser as a result of debris from the cutting process.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: January 26, 1999
    Inventor: Robert R. Kelly
  • Patent number: 5860346
    Abstract: A muntin strip miter cutting apparatus for cutting muntin strips into muntin sections and assembly of muntin sections into muntin lattices. The apparatus has at least one muntin cutting blade which cuts muntin strips to produce mitered muntin sections. A piercing system pierces the muntin sections to provide apertures to assist with final assembly. The muntin sections are assembled with keepers at an assembly station to produce muntin lattices which are inserted between two or more panes of glass.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: January 19, 1999
    Inventors: John McKeegan, Jr., Rodney A. Bracy
  • Patent number: 5860342
    Abstract: Point needles in a conveying cylinder of a rotary press are caused to follow a curve course which securely fastens a web to the cylinder while eliminating transport damage to the printed products as well as reducing paper waste. The needle tips of the point needles are moved along their path by the superimpositioning of two pivot movements, one of which is accomplished by a point holder arm and the second of which is accomplished by a rocker. The two cooperate to form a level four member swivel joint.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: January 19, 1999
    Assignee: Koenig & Bauer-Albert Aktiengesellschaft
    Inventors: Bernd Anton Hillebrand, Horst Bernhard Michalik
  • Patent number: 5857395
    Abstract: An apparatus for the manufacture of sheets of corrugated board of variable size comprises a cross cutter for severing the entire web of corrugated board disposed, in the conveying direction of a web of corrugated board, downstream of at least one longitudinal cutting arrangement, of cutting devices for cutting lateral margins and of discharge devices for the margins cut off, and upstream of at least one cross cutting arrangement for cutting sheets of corrugated board.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: January 12, 1999
    Assignee: BHS Corrugated Maschinen- und Anlagenbau GmbH
    Inventors: Roman Bohm, Martin Grill, Felix Titz, Karl Waldeck
  • Patent number: 5855156
    Abstract: An apparatus and method for forming a cut end of a surgical suture tip. The apparatus including a first and second cutting dies with a channel for receiving a suture. Mechanical actuators are provided to moving the cutting dies from an open to a closed position. The cutting dies are adapted to trap and compressing the suture. A cutting blade is provided for cutting the surgical suture tip adjacent to the first and second cutting dies when the cutting dies are closed.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: January 5, 1999
    Assignee: Ethicon, Inc.
    Inventors: Bernd Haase, Kenneth J. Smith
  • Patent number: 5852963
    Abstract: A method for cutting the leader of the web in a paper or board machine in the dryer section of the machine by a jet of pressurized water. The web is placed against the drying wire when it is being cut, and the jet is directed at the web from the free side of the web. The water jet pressure used is from about 40 bar to about 400 bar, preferably from about 100 bar to about 350 bar, which is produced by an ordinary pressure washer.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: December 29, 1998
    Assignee: Valmet Corporation
    Inventors: Ismo Koponen, Iimari Rintasalo, Jari Vainio, Juha Kaihovirta
  • Patent number: 5845555
    Abstract: A multi-position adjustable work stop assembly employs a traveling gauge assembly that cooperates with independently adjustable and inexpensive location stops. The gauge assembly is moveable along a fence to define a plurality of work locating positions determined by the location stops. An engagement or contact member on the gauge assembly selectively intercepts the location stops to precisely locate the gauge assembly in the desired positions. The engagement member is an arm mounted for movement between first and second positions on the gauge assembly. In the first position the engagement member intercepts the location stops when the gauge assembly is moved longitudinally on the fence. In the second position the engagement member clears the location stops during such movement.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: December 8, 1998
    Inventor: James Alonzo Dawley
  • Patent number: 5839635
    Abstract: A method and apparatus for curved-angle cleaving of optical fibers. The method requires the introduction of a flaw in an optical fiber to be cleaved, and the application of predetermined stress and strain to the optical fiber in the vicinity of the flaw to cause curved-angle cleaving of the optical fiber at the flaw. The apparatus of the present invention includes first and second pairs of optical fiber clamps separated by first predetermined distance, a flaw-producing device that produces a flaw in a fiber clamped between the clamps, and a force-applying device that applies a substantially concentrated force to the fiber at a second predetermined distance from the first pair of clamps, the flaw-producing device being located between the force-applying device and the second pair of optical fiber clamps at third predetermined distance from the force-applying device. The first, second and third predetermined distances are selected in order produce a curved-angle cleave in the optical fiber.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles M. Mansfield, Gordon Wiegand, Martin G. Afflerbaugh, Suzanne T. Zochowski
  • Patent number: 5839634
    Abstract: The present invention relates to improved blades for severing sheet materials such as polymeric sheets, metallic foils, and other sheet materials, particularly those suitable for use in the containment and protection of various items including perishable materials. The present invention provides an improved blade for severing sheet materials wherein design parameters for the design of the blade teeth have been tailored for improved severing performance. The blade comprises a blade body and a plurality of individual teeth extending outwardly from the blade body. The teeth each have a finite tooth radius and at least one tooth parameter selected from the group of optimized tooth parameters consisting of a tooth radius less than about 0.005 inches, a tooth pitch of less than about 0.050 inches, and a tooth thickness of less than about 0.006 inches.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: November 24, 1998
    Assignee: The Procter & Gamble Co.
    Inventors: Ricky Alan Pollard, Randy Allen Eyre, Charles John Berg, Jr.