Patents Represented by Attorney Louis J. Bachand

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  • Single piece suspension with self-hinged flexure
    Patent number: 6392844
    Abstract: A single piece suspension and actuator arm includes a load beam having an integrated flexure and hinge each formed of the same web as the load beam, the flexure being foldable at the hinge to lie over the load beam engaged therewith to secure the flexure in its folded over condition. The load beam defines an additional attachment structure that attaches to cooperating attachment structure on the actuator arm, with one or more of the attachment structures comprising a tab and slot arrangement.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: May 21, 2002
    Assignee: Magnecomp Corp.
    Inventor: Robert Summers
  • Load beam suspension with two-position extended mounting plate
    Patent number: 6388841
    Abstract: Disk drive suspension including an actuator, a modified base mounting plate fixed to the actuator to support a load beam, flexure and slider assembly cantilevered from the actuator in operative association with a disk. The modified base mounting plate further individually mounts each load beam on an actuator for separate demounting of one without demounting of the other.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: May 14, 2002
    Assignee: Magnecomp Corp.
    Inventor: Robert N. Summers
  • Wireless disk drive suspension with optimized mechanical and electrical properties
    Patent number: 6385014
    Abstract: Excessive capacitive coupling in a wireless disk drive suspension having minimum dielectric film thickness for better mechanical properties is reduced by removing a portion of the wireless conductor immediately opposite the suspension conductors only to obtain reduced capacitive coupling and thus better electrical properties without sacrifice of mechanical properties.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: May 7, 2002
    Assignee: Magnecomp Corp.
    Inventors: Gustavo Nuno, Robert Summers
  • Wireless suspension with interrupted load beam
    Patent number: 6381099
    Abstract: In a disk drive suspension the conventional load beam spring section is replaced by the spring metal layer of the flexible conductor that forms the flexure providing more accurate spring function without the need of critical etching steps in the load beam spring section.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: April 30, 2002
    Assignee: Magnecomp Corporation
    Inventor: Shijin Mei
  • One-piece load beam and gimbal flexure using flexible circuit
    Patent number: 6377425
    Abstract: A disk drive suspension has a lower stiffness gimbal flexure formed in one piece with a load beam by setting off the flexure frame from the load beam rigid portion, reducing the frame thickness by partial etch, maintaining the flexure tongue thickness at that of the load beam rigid portion, and completing the flexure frame with flexible conductor connected to the distal end of the frame, metal layer in the flexible conductor being removed to maintain low stiffness while connecting the flexible conductor to the flexure tongue in motion limiting relation.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: April 23, 2002
    Assignee: Magnecomp Corporation
    Inventor: Amanullah Khan
  • Suspension flexure with load-unload efficient motion limiting feature
    Patent number: 6373664
    Abstract: A disk drive suspension assembly of a flexure and a flexure support, the flexure having a tongue adapted to carry in gimbaling relation a slider in operating proximity to a disk, the flexure support and the flexure tongue defining cooperating structures which limit motion of the tongue relative to the disk to a predetermined range.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: April 16, 2002
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Amanullah Khan, Gustavo Nuno, David Wolf
  • Ultimate low cost disk drive suspension system
    Patent number: 6373663
    Abstract: A very low cost disk drive suspension is a unitary structure carried in a strip with other structures that comprise a load beam and a flexure, the flexure having a head portion that forms a gimballing platform from inner and outer leaves carried on a frame leg, the load beam having an aperture with guiding fingers to receive and guide an axial connector that can be coined to mount the load beam on an actuator arm in lieu of using a mounting plate.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: April 16, 2002
    Assignee: Magnecomp Corp.
    Inventor: Warren Coon
  • Disk drive suspension with jumper lead segments
    Patent number: 6373665
    Abstract: A low manufacturing cost electrical connector for a disk drive suspension comprises lower cost, metal layer-free first flexible conductive laminate segment to connect to signal circuitry, a more expensive metal layer containing flexible conductive laminate second segment to connect to a slider, and a lower cost, easily variously shaped jumper segment supported on the actuator arm and coupled between said first and second segments to connect the slider to the signal circuitry in a manufacturing cost efficient way.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: April 16, 2002
    Assignee: Magnecomp Corp.
    Inventor: Alejandro Koji Iwamoto
  • Method of making a suspension flexure with load-unload efficient motion limiting feature
    Patent number: 6367145
    Abstract: A disk drive suspension assembly of a flexure and a flexure support, the flexure having a tongue adapted to carry in gimbaling relation a slider in operating proximity to a disk, the flexure support and the flexure tongue defining cooperating structures which limit motion of the tongue relative to the disk to a predetermined range.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: April 9, 2002
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Amanullah Khan, Gustavo Nuno, David Wolf
  • Suspension manufacturing method and product
    Patent number: 6369987
    Abstract: A flexible conductor is mounted to a suspension comprising a flexure and a load beam using a flowable adhesive-passing channel at a locus of flexible conductor attachment to the suspension and a flowable adhesive forced into the channel in a manner forming a crown of the adhesive over and around the channel inlet, and hardening the adhesive in bonding relation with the flexible conductor and the suspension, the adhesive crown mechanically locking the suspension load beam, flexure and flexible conductor in their desired alignment.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: April 9, 2002
    Assignee: Magnecomp Corp.
    Inventors: Amanullah Khan, Warren Coon
  • Suspension with modified load beam for dynamic pitch control
    Patent number: 6369986
    Abstract: Optimum pitch attitude during and between slider contact with a disk in a disk drive is provided by articulating the suspension load beam rigid portion intermediate its ends to flex in the unloaded condition to provide a small positive pitch to the slider and to provide a 0° pitch in the loaded condition when the slider is in operating contact with the disk.
    Type: Grant
    Filed: December 31, 1999
    Date of Patent: April 9, 2002
    Assignee: Magnecomp Corp.
    Inventor: Warren Coon
  • Method of protecting a horse's hoof
    Patent number: 6364025
    Abstract: Horse hoof protection is obtained by incorporating a urethane resin reaction product of low viscosity sides A and B which react rapidly to gel in a few seconds while filling the interstices or the horse's hoof and have when reacted a low hardness of 40 to 80 Shore A to cushion the hoof.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: April 2, 2002
    Assignee: Magnecomp Corporation
    Inventor: Richard L. Jacobs
  • Chip-mounted disk drive suspension
    Patent number: 6356413
    Abstract: The invention provides greatly shortened electrical paths for the wires or traces connecting a disk drive suspension slider to the preamplifier circuit chip without problems of chip wastage by supporting the disk drive suspension assembly of a slider, a flexure, a load beam and a mounting plate, all in operative association on the preamplifier circuit chip, and supporting the chip on the actuator arm.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: March 12, 2002
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Amanullah Khan
  • Corrosion protection for wireless flexure
    Patent number: 6348661
    Abstract: In the manufacture of disk drive suspension flexures, an absence of exposed unplated conductive trace ends at the locus of severing individual flexures from a panel of flexures is achieved by reducing the cross section a portion of the conductive traces at the locus of severing so that the portion preferentially melts upon passage of a current through the conductive traces, severing the portion and encasing the severed ends in melted plastic from the flexure plastic film layer.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: February 19, 2002
    Assignee: Magnecomp Corp.
    Inventor: Warren Coon
  • Suspension with modified loan beam for dynamic pitch control
    Patent number: 6341050
    Abstract: Optimum pitch attitude during and between slider contact with a disk in a disk drive is provided by articulating the suspension load beam rigid portion intermediate its ends to flex in the unloaded condition to provide a small positive pitch to the slider and to provide a 0° pitch in the loaded condition when the slider is in operating contact with the disk.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: January 22, 2002
    Assignee: Magnecomp Corporation
    Inventor: Warren Coon
  • Positive coupling of piezoelectric devices in disk drive suspensions
    Patent number: 6335848
    Abstract: A disk drive suspension uses microactuators comprising piezoelectric crystals to drive movement of the load beam carrying slider relative to disk tracks, the crystals being positively coupled to the load beam portions by cooperating, interfitting structures defined by the crystal and load beam portions.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: January 1, 2002
    Assignee: Magnecomp Corporation
    Inventor: Shijin Mei
  • Extended mount plate suspension for shock insensitivity
    Patent number: 6335847
    Abstract: An improved disk drive suspension in which the load beam rail section is of reduced length, the base portion, defined by an extended mounting plate, increased in length, and the spring portion therebetween increased in length. The load beam rail section is laminated with a flexure substantially as wide as the rail section providing a very rigid structure. The centers of gravity of the load beam and flexure are closely approximate such that their reaction moment under shock is small, limiting the 2nd bending mode reaction of the load beam in favor of the 1st bending mode reaction, so that the slider carried by the load beam and flexure is kept flat to the disk against damaging the disk upon recontact.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: January 1, 2002
    Assignee: Nagnecomp Corp.
    Inventors: Amanullah Khan, Alejandro Koji Iwamoto
  • Low voltage, high displacement microactuated disk drive suspension reference to related applications
    Patent number: 6335849
    Abstract: A disk drive suspension comprising a load beam utilizing a piezoelectric microactuator has arcuate spring portion elements vertically to laterally disposed relative to the load beam that further curl or flatten in response to contraction or expansion of the piezoelectric microactuator to facilitate greater distance beam displacement at lower levels of voltage.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: January 1, 2002
    Assignee: Magnecomp Corporation
    Inventors: Amanullah Khan, Shijin Mei
  • Flexible circuit suspension
    Patent number: 6333837
    Abstract: A disk drive suspension comprising a flexible circuit electrical connector and a steel load beam has a second dielectric layer free of conductive traces and not part of the flexible circuit positioned and maintained between the flexible circuit and the load beam.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: December 25, 2001
    Assignee: Magnecomp Corporation
    Inventor: Robert Summers
  • Microactuated disk drive suspension with heightened stroke sensitivity
    Patent number: 6331923
    Abstract: A disk drive suspension comprising a load beam utilizing a piezoelectric microactuator has multiply reversely deflected arcuate spring portion elements that further curl or flatten in response to contraction or expansion of the piezoelectric microactuator to facilitate greater distance beam displacement at lower levels of voltage.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: December 18, 2001
    Assignee: Magnecomp Corporation
    Inventor: Shijin Mei