Patents Represented by Attorney Louis J. Bachand

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  • Disk drive suspension with minimum wire-induced bias
    Patent number: 5912787
    Abstract: Disk drive suspension in which roll and pitch biases are minimized by routing the wire bundle of oppositely twisted wire pairs in a groove extending along the longitudinal axis of the load beam, and then each of the pairs separately about the suspension flexure for connection to the head.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: June 15, 1999
    Assignee: Magnecomp Corp.
    Inventors: Aman Khan, Warren Coon
  • Disk drive suspension with hybrid leads
    Patent number: 5901016
    Abstract: The efficiency of wire bundle conductors is realized in a disk drive suspension without wire bundle biasing of the slider movement by interposing a section of flexible conductive laminate conductor between the wire bundle terminus and the slider, thereby obtaining the nearly bias free connection of the flexible conductive laminate conductor to the slider and as well substantially the superior electrical performance of the wire bundle conductor.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: May 4, 1999
    Assignee: Magnecomp Corp.
    Inventor: Alejandro Koji Iwamoto
  • Coating methods, coating products and coated articles
    Patent number: 5883314
    Abstract: Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HF precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y).sub.n alloys in which n is 0, 1 or more.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: March 16, 1999
    Inventors: George K. Sievers, Eugene V. Clark
  • High shock suspension with load beam shielded flexure
    Patent number: 5877921
    Abstract: An improved resonance and non-operating shock performance, low debris-generating disk drive suspension head gimbal assembly for positioning a head at a disk in which the load beam body is locally relieved or deflected to provide shelter for the portion of the flexure usually in the path of the lift arm against debris causing contact of the lift arm with the flexure edges and distortion of the flexure from lift arm contact in a load beam unsupported condition. The local relief reduces the load beam mass for high shock performance; the modification of the load beam contour improves stiffness and thereby improves resonance qualities.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: March 2, 1999
    Assignee: Magnecomp Corp.
    Inventors: Warren Coon, Aman Khan, Koji Iwamoto
  • Suspension flexure with primary and secondary stiffness control
    Patent number: 5875070
    Abstract: Optimized stiffness in a disk drive suspension comprising a load beam and a flexure structure is realized by forming the flexure structure from a flexure and a flexible conductor in which the conductor is a laminate of conductive metal and plastic and has an easily controlled and relatively higher spring constant, while the flexure has a relatively lower spring constant.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: February 23, 1999
    Assignee: Magnecomp Corp.
    Inventors: Aman Khan, Daniel Vera, Koji Iwamoto
  • Clean room air filter system with self-supporting filter units
    Patent number: 5871556
    Abstract: Clean room ceiling in which the individual filter units are suspended solely by unshared suspension assemblies so as to be self-supporting and readily installable and removable individually and free of grids and other multiple unit supporting expedients.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: February 16, 1999
    Assignee: HEPA Corporation
    Inventors: Peter Jeanseau, Richard Braman
  • Unitary load beam and cam follower
    Patent number: 5862018
    Abstract: Load beam for supporting a terminally disposed flexure carrying a head slider in operative association with a removable disk drive and an actuator for shifting the load beam along its longitudinal axis, the load beam being formed of a single member and having an integrally formed laterally projecting cam follower unitary therewith for effective lifting of the head slider from the disk.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: January 19, 1999
    Assignee: Magnecomp Corporation
    Inventors: Daniel Vera, David Wolf
  • Pool cleaning tool with replaceable scuff edge basket
    Patent number: 5858221
    Abstract: A low cost, repairable pool cleaning tool for cleaning debris from a pool bottom wall, comprising a mesh fabric debris receiver having a perimetrical portion, a frame supporting the mesh fabric receiver by its perimetrical portion for debris reception, a protective sleeve surrounding the frame against contact with the pool bottom wall, and a pole attached to said frame for manipulating the receiver in the pool to gather debris from the pool, the mesh fabric being adhesively bonded to the frame or to the sleeve for ease of manufacture and for ready replacement and repair. The tool further includes positive clamping of the fabric mesh at the pole connection to the frame, and a rotatable and removable scrubber lip journaled on the sleeve.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: January 12, 1999
    Inventor: James R. Conrad
  • Double dimple disk drive suspension
    Patent number: 5852532
    Abstract: A disk drive suspension assembly in which the spacing of the slider in operative proximity to the disk is determined by the additive height of separate opposed dimples on the flexure and load beam, respectively, engaged in a common locus of engagement, the flexure having in addition a local deflection to offset the outer flexure portion carrying the dimple from the inner flexure portion.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: December 22, 1998
    Assignee: Magnecomp Corp.
    Inventor: Robert N. Summers
  • Tooth restoration composition, structure and methods
    Patent number: 5844018
    Abstract: Method, composition and structure are provided for tooth restorations comprising a urethane polymer having a crystalline polymer phase distributed in a noncrystalline polymer phase by virtue of differential reactivity of the urethane forming reagents.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: December 1, 1998
    Inventors: Richard Jacobs, Don Porteous
  • Reduced mass load beam with improved stiffness properties
    Patent number: 5812342
    Abstract: A disk drive suspension load beam having reduced mass for lessened shock in use and progressively modified stiffness and torsion values from its rearward portion to its forward portion is provided by trenching the rearward and/or intermediate portions to form on the flexure bearing, or opposite, face of the load beam a longitudinal series of transverse grooves in the rearward portion and in the intermediate portion inside the edge margin thereof, suitably cross-ribbed for stiffness, the rearward portion trenches being on the opposite face unless the intermediate portion is also trenched.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: September 22, 1998
    Assignee: Magnecomp Corporation
    Inventors: Aman Khan, Carlos Sanchez, Koji Iwamoto
  • High performance automotive clutch with modified pressure plate for sustained increased spring force
    Patent number: 5769973
    Abstract: Belleville spring pressure plate of increased height for use in a high performance clutch assembly exerts a greater force than the original height plate, is usable without modification of the original clutch and is longer lasting in service after being thermally conditioned to a martensitic state to lose the memory of its original, lower height and stress tempered before being set in a new, increased height shape.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: June 23, 1998
    Inventor: Robert P. Smith, Jr.
  • Coated roll for aluminizing processes
    Patent number: 5759142
    Abstract: Aluminizing process guide roll are made longer wearing without surface defects by applying a multilayer coating on the roll surface including a first coating layer of MCrAlY metal of a first, lower porosity effective against corrosion, and a second coating layer of refractory oxide of a second higher porosity effective against surface defect failure generated thermal expansion failure of the layer.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: June 2, 1998
    Assignee: Bender Machine, Inc.
    Inventor: Chris Perdikaris
  • Unitary load beam and cam follower
    Patent number: 5742454
    Abstract: Load beam for supporting a terminally disposed flexure carrying a head slider in operative association with a removable disk drive and an actuator for shifting the load beam along its longitudinal axis, the load beam being formed of a single member and having an integrally formed laterally projecting cam follower unitary therewith for effective lifting of the head slider from the disk.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: April 21, 1998
    Assignee: Magnecomp Corp.
    Inventors: Daniel Vera, David Wolf
  • Interpenetrating network compositions and structures
    Patent number: 5728633
    Abstract: Structure, composition and method in which a fiber reinforcement is impregnated with an interpenetrating network of a light cure resin and a thermosetting resin which are independently curable, enabling autobody component repair, electronic assembly bonding, etc. by selective cure first of one or the other resin, and the support against fluid flow of the uncured resin by the first cured resin.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: March 17, 1998
    Inventor: Richard L. Jacobs
  • Interpenetrating network compositions and structures
    Patent number: 5702991
    Abstract: Structure, composition and method in which a fiber reinforcement is impregnated with an interpenetrating network of a light cure resin and a thermosetting resin which are independently curable, enabling autobody component repair, electronic assembly bonding, etc. by selective cure first of one or the other resin, and the support against fluid flow of the uncured resin by the first cured resin.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: December 30, 1997
    Inventor: Richard L. Jacobs
  • Resin precursors having thixotropic properties and fillers stabilized against settling
    Patent number: 5698623
    Abstract: Addition of a polyurethane or polyurea polymer to each part of a particulate filled precursor of a two-part resin stabilizes the filler against settling from suspension, and provides thixotropic response when the precursors are expressed from a container.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: December 16, 1997
    Inventor: Richard L. Jacobs
  • Method and apparatus for single use dispenser packaging of dental retraction cords
    Patent number: 5692610
    Abstract: Method and apparatus for the packaging of single use quantities of product such as dental retraction cords comprising sheet materials laminated about the product interposed between the sheet materials in a continuous length and severed at the locus of transverse lamination to a single use quantity length.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: December 2, 1997
    Inventor: Don D. Porteous
  • Steam turbine components with differentially coated surfaces
    Patent number: 5683226
    Abstract: Steam turbine fluid directing components are improved in erosive wear resistance by application of either relatively tougher and relatively less hard thermal spray or relatively harder and relatively less tough diffusion alloy surface modification to different portions of the component as a function of the locally greater or locally smaller angle of attack of solid particles on those portions in the use condition of the component.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: November 4, 1997
    Inventors: Eugene V. Clark, Ralph J. Ortolano
  • Aliquot portion measuring vial with overfill control
    Patent number: 5678726
    Abstract: A measuring vial for automatically determining correct number of fluid aliquots to be mixed with other materials such as dental alginate impression powders comprises a cylinder having an extended recess, an outlet port in the recess, the outlet port being at the height of the meniscus height of the desired quantity of fluid, any excess fluid being lost through the outlet port until the correct quantity is determined. A finger in the recess over the outlet blocks loss of fluid where desired.
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: October 21, 1997
    Inventor: Don D. Porteous