Patents Represented by Law Firm Hamrick, Hoffman, Guillot & Kazubowski
  • Patent number: 4663732
    Abstract: An apparatus for storing and retrieving data in predetermined multi-bit length quantities containing fewer bits of data than word length quantities, including a memory for storing word length quantities at particular storage sites, a first buffer for selectively receiving data bits contained in a first predetermined portion of a word length quantity of data stored at a particular address within the memory, a second buffer for selectively receiving data bits contained in a second predetermined portion of the word length quantity of data stored at the particular address, a third buffer for alternatively receiving data bits contained in the second predetermined portion of the word length quantity of data stored at the particular address, a data bit generator for generating a null signal in the form of a predetermined number of data bits, a data bus having a first data transfer part and a second data transfer part connected to the memory, a CPU for causing the respective first and second portions of data and the
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: May 5, 1987
    Assignee: KLA Instruments Corporation
    Inventor: C. Michael Robinson
  • Patent number: 4652983
    Abstract: A light-weight reflecting shade that is to be mounted on a fluorescent tube as it is normally disposed within a ceiling light fixture and including (i) a plurality of elongated spreaders that are located in spaced apart parallel relationship with one another, (ii) a plurality of hanger means that slideably connect with selected ones of, or all of, the spreader means and are adapted to be positioned to receive and attach to the fluorescent tube, and (iii) a resilient sheet means affixed to the plurality of spreader means. The sheet means has a highly reflective surface on the side facing the fluorescent tube, has one dimension substantially equal to the length of the fluorescent tube and a second dimension that is substantially greater than the length of the elongated spreader means. In use, the hanger means engages and is supported by the fluorescent tube, and in turn supports the spreader means and the resilient sheet means.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: March 24, 1987
    Inventor: Michael Mytels
  • Patent number: 4648287
    Abstract: A pedal stroke adjuster includes a pair of crank frames each of which is mounted on one of the crank arms of a bicycle or exercise machine. A mounting bracket, mounting blocks and spacers are used to align each crank frame in a vertical position when connected to a crank arm. The sides of the crank frame provide guide rails for a pedal mounting block and in one embodiment of the invention one of the guide rails is notched to receive a spring-loaded detent latch that is located in the pedal mounting block. A finger operated release mechanism is provided so that the latch may be removed from the notch and the position of the pedal mounting block changed. In an alternate embodiment, each guide rail is notched. The notches are offset so that the detent latches can be readily contained in the confined space of the block. In another embodiment of the invention, a threaded rod is used to move the pedal mounting block up and down within the crank frame and along the guide rails.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: March 10, 1987
    Inventor: Jay Preskitt
  • Patent number: 4647764
    Abstract: In an automatic wafer inspection system, the objective lenses used in micro inspection are mounted on a turret which is attached to an adjustable turret support member. Several lenses may be brought sequentially into position for inspection of the patterned wafer and it is necessary that the handoff be precise so as to maintain the same pattern in the viewing position. V-slots are mounted on the turret in such a location as to be correctly associated with the precise position for each lens. A detent ball spring is biased to drive into a V-slot so as to hold the associated lens in the precise viewing position. When hand-off to the next lens is to be accomplished, a counter force is applied which overcomes the spring bias and pulls the detent ball out of the V-slot. A drive motor is then enabled, which turns the turret a predetermined distance to bring the wide opening of the next adjacent V-slot into approximate alignment with the detent ball and the drive motor is disabled.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: March 3, 1987
    Assignee: KLA Instruments Corporation
    Inventors: Curt H. Chadwick, Anil A. Desai
  • Patent number: 4645061
    Abstract: A can stacking infeed machine for stacking nestable extruded cans where can diameter is greater than can height, includes a pair of gravity chutes for dividing an elevated stream of cans at input into two streams of cans, one above the other at output. A rotating starwheel collocates the cans sliding down the chutes one above the other for discharge in vertically registering pairs. A leaf spring mechanism urges the bottom of the upper can into nested engagement with the top of the lower can as the starwheel rotates releasing the cans to slide from the machine. Normally open switches located for sensing the flow of cans down both gravity chutes interrupt rotation of the starwheel thus preventing discharge of a single can from either chute. Stacked can pairs are accelerated upon release by the rotating starwheel as they slide from the machine to provide spacing.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: February 24, 1987
    Inventor: Hubert E. Welch
  • Patent number: 4644172
    Abstract: A system for automatic micro and macro inspection of patterned wafers, including a X-Y stage for supporting and positioning a wafer at a macro inspection station and a micro inspection station, a plurality of cassettes for storing a plurality of patterned wafers before and after inspection, a transfer arm and apparatus for transferring a wafer from the cassettes to a predetermined location on the X-Y stage, apparatus for centering the wafer on the macro inspection station, apparatus for aligning the wafer to obtain a preselected orientation for macro inspection, an optical system for effecting macro inspection of the wafer and storing a unique image thereof, apparatus for moving the wafer from the macro inspection station to the micro inspection station so that the area of the wafer corresponding to the stored unique image is in a micro optical path, autofocus apparatus for automatically focusing the lowest magnification objective lens on the area of the wafer to derive a real time image, a comparitor for com
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: February 17, 1987
    Assignee: KLA Instruments Corporation
    Inventors: Paul Sandland, Kenneth Levy, Russell M. Singleton, Michael L. Hodgson, Gerald R. Cutler
  • Patent number: 4641897
    Abstract: A storage and display device for floppy disks and the like including a molded base unit having a tray for supporting the disks on one edge thereof, a plurality of dividers for separating quantities of the disks within the tray, and hangers pivotally attached to each end of the base unit for suspending the storage container relative to a pair of parallel supports. The hangers are pivotable between a position in parallel side-by-side relationship with the corresponding end surface of the tray and a position extending upwardly relative to the end walls of the tray.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: February 10, 1987
    Assignee: Innovative Concepts, Inc.
    Inventors: Jerry M. Long, James A. Womack
  • Patent number: 4640449
    Abstract: A bicycle bottle cage having an attachment mechanism that will securely fasten the cage to the handle bars of a bicycle. The bottle cage portion has a generally conventional configuration. An attachment bracket is welded to the rear portion of the cage and includes a continuous loop formed to serpentine fashion to extend over the handle bars and beside and over the goose neck. A clamp plate extends beneath the goose neck to engage each side of the attachment bracket. The clamp plate includes a lock screw which engages the bottom of the goose neck to firmly attach the bracket thereto.
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: February 3, 1987
    Assignee: Jim Blackburn Designs, Inc.
    Inventor: James R. Blackburn
  • Patent number: 4639587
    Abstract: An automatic microscope focusing system including a light source 44, a dual channel fiber optics bundle 56 and 58, chopper means 54 for alternately admitting light to the channels, a reticle 66 and associated optics to cast alternating images onto the surface of an inspected article W, return masks 82 and 88, and associated detectors 86 and 92 for inspecting the alternating reticle images, and control circuitry 36 and 38 responsive to the detector outputs and operative to drive the system microscope 10 into focus. The preferred embodiment also includes a flipping pupil 60 for accommodating particular microscope objectives.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: January 27, 1987
    Assignee: KLA Instruments Corporation
    Inventors: Curt H. Chadwick, Art M. Shulenberger, John S. Taylor, Richard R. Simmons
  • Patent number: 4633504
    Abstract: Optical inspection apparatus for detecting defects in a visually perceptible pattern including image acquistion means for inspecting the pattern on a pixel-by-pixel basis, developing digital data signals corresponding to each pixel and feeding the signals so developed to an imaging enhancement means. The imaging enhancement means compensates for equipment related degradations in the images and converts the digital data signal value corresponding to each pixel into a corrected signal value by operating on the digital data signal with a two dimensional finite impulse response filter. The corrected signal values of the image enhancement means are received by a defect detection means which evaluates the signal values for defects in the pattern. Any defects so determined are recorded and/or displayed on data recording means.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: December 30, 1986
    Assignee: KLA Instruments Corporation
    Inventor: Mark J. Wihl
  • Patent number: 4630513
    Abstract: An improved DIP lead trimming apparatus including a base having an inclined upper surface which supports an input rail, an output rail, a singulator mechanism, an adaptable cutter assembly and stop assembly, and a DIP lifter assembly for lifting a trimmed DIP from a position above the cutter assembly to the output rail.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: December 23, 1986
    Inventor: Ernst Keller
  • Patent number: 4630145
    Abstract: A positioning system for a magnetic disk storage system. A first and second lead screw connected to their respective stepper motors are mechanically connected by a lever arm that adds these motions. The first stepper motor is controlled by an open loop control circuit and the second stepper motor is controlled by a closed loop circuit that reads servo information off the magnetic disk. The head is constantly repositioned to follow track eccentricities and can accurately read very closely spaced tracks on non-rigid disks.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: December 16, 1986
    Assignee: Drivetec, Inc.
    Inventors: Herbert E. Thompson, Duane C. Meulners
  • Patent number: 4629387
    Abstract: DIP tube handling apparatus including an input hopper 62 suitable for containing a quantity of randomly oriented DIP container tubes, agitating, singulating and metering means 34 at the bottom of the hopper 12 for causing one tube at a time to leave the hopper 12 under the influence of gravity, a pair of walking beams 26, 28 for moving the singulated DIP tube to an orientation station, an orientation device 30 for orienting the tubes so that the tubes and DIPs contained therein are positioned top side up, a tube inclining means 110 for causing the tube to be inclined so that DIPs may slide therefrom under the influence of gravity, either into the tube from a supply chute or out of the tube into a discharge chute, and an output hopper 14 for receiving tubes that have been loaded or unloaded.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: December 16, 1986
    Assignee: Adcotech Corporation
    Inventors: Ben S. Stillman, Barry J. Boricchio
  • Patent number: 4630243
    Abstract: Measurement while drilling apparatus for detecting and communicating information relative to downhole parameters and/or characteristics of the earth strata via an electrically conductive drill string composed of a plurality of lengths of metallic pipe connected end-to-end in series and through which a drilling fluid is caused to flow and then return to the surface through the well cavity formed between the exterior wall of the drill string and the interior wall of the well comprising a DC voltage supply for establishing a unidirectional biasing current passing through the electrically conductive drill string, drill bit and surrounding earth strata, a colloidal suspension of ferro-magnetic particles coated with a non-conductive coating forming a part of the drilling fluid and carried by the drilling fluid through the well cavity wherein the ferromagnetic particles are caused by the magnetic field to migrate toward the outer surface of the drill string and to form an insulative coating thereon, a downhole modul
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: December 16, 1986
    Assignee: MacLeod Laboratories, Inc.
    Inventor: Norman C. MacLeod
  • Patent number: D287544
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: January 6, 1987
    Assignee: Innovative Concepts, Inc.
    Inventors: Jerry M. Long, James A. Womack
  • Patent number: D287545
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: January 6, 1987
    Assignee: Innovative Concepts, Inc.
    Inventors: Jerry M. Long, James A. Womack
  • Patent number: D287666
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: January 13, 1987
    Assignee: Innovative Concepts, Inc.
    Inventors: Jerry M. Long, James A. Womack
  • Patent number: D288009
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: January 27, 1987
    Assignee: Boyd Lighting Company
    Inventor: Murray C. Pfister
  • Patent number: D288136
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: February 3, 1987
    Assignee: Boyd Lighting Company
    Inventor: Murray C. Pfister
  • Patent number: D288249
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: February 10, 1987
    Assignee: Boyd Lighting Company
    Inventor: Murray C. Pfister