Patents Represented by Law Firm Barnes, Kisselle, Raisch, Choate, Whittemore & Hulbert
  • Patent number: 5622135
    Abstract: An anchor with pivoted flukes and a track upon which an anchor line is slidably connected to the anchor has a pair of fluke drivers adjacent the flukes which produce a significant included angle of the flukes with respect to the bed of a body of water. This included angle of the flukes enables them to rapidly penetrate and set in a bed of a body of water even under hard pan bed conditions. Typically, the anchor sets into the bed of a body of water within ten feet of anchor movement relative to the bed.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: April 22, 1997
    Inventor: William C. Eberline, Sr.
  • Patent number: 5623202
    Abstract: A single IC testing machine can be used to test several IC chips connected in parallel by a unique hardware design and a special software program for execution, for instance, a single testing head and a single set of address input lines can be used for testing the chips by connecting the corresponding similar address input pins of the chips together first and then connecting to the address input lines of the testing machine, and connecting the data I/O pins of the chips to the data I/O pins of the testing machine, and then connecting the voltage input and the ground of the chips to separate voltage sources.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: April 22, 1997
    Assignee: United Microelectronics Corporation
    Inventor: C. Y. Yung
  • Patent number: 5622526
    Abstract: A trueing wheel for trueing an abrasive belt or wheel having cubic boron nitride abrasive particles. The trueing wheel has a radially outer peripheral surface which slopes at an acute angle with respect to its axis of rotation. Diamond particles, preferably about 0.150 mm in diameter, are bonded to the sloping radially outer peripheral surface in a single layer.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: April 22, 1997
    Assignee: J. D. Phillips Corporation
    Inventor: James D. Phillips
  • Patent number: 5623156
    Abstract: An integrated circuit device includes internal power supply buses V.sub.SSI, and V.sub.DDI, and output power supply buses V.sub.SSO, and V.sub.DDO. An output driver of the device has an active p-channel pull up, and n-channel pulldown complementary pair configuration with their outputs tied to a common node, which is in turn tied to an I/O pad. A protection circuit for protecting the device from ESD events includes a series resistor disposed between the source of the n-channel pulldown transistor, and power supply bus V.sub.SSO. The protection circuitry includes a diode having its cathode connected to the I/O pad, and its anode connected to power supply bus V.sub.SSI. The pulldown transistor includes an n.sup.+ drain region, which is shared with the diode, wherein the diode and transistor are merged. The resistor between the pulldown transistor source, and power supply V.sub.SSO permits maintaining this merged structure. In an alternate embodiment, an n-well may be formed to underlie the p.sup.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: April 22, 1997
    Assignee: Cypress Semiconductor Corporation
    Inventor: Jeffrey Watt
  • Patent number: 5619972
    Abstract: A valve in a fuel pressure regulator prevents liquid fuel from being emitted exteriorly of the regulator housing and onto heated engine components. In the preferred embodiment, the valve allows gaseous flow into a chamber of the regulator when the pressure within the chamber is lower than the pressure of gases exterior of the regulator but prevents gaseous flow from within the chamber to the exterior of the housing. In other embodiment an air-bleed passage is provided in the valve to allow gaseous flow from within the chamber to the exterior of the regulator.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: April 15, 1997
    Assignee: Walbro Corporation
    Inventors: Ronald B. Kuenzli, Charles H. Tuckey
  • Patent number: 5619727
    Abstract: An apparatus for multiple channel direct memory access using a virtual array technique comprises n DMA blocks connected in series, each DMA having m independent channels for transferring data. Parameters to control a DMA transfer, such as a source address, destination address, length, and an action mode value, are stored in a memory for each one of the m DMA channels. The first dimension DMA is coupled to the memory to retrieve the parameters and is set in a series mode, while a downstream DMA is set in a normal mode. Operation of the apparatus is begun by starting the first dimension DMA, which then acquires control of the system bus. The first dimension DMA then reads and transfers the DMA parameters to the higher dimension, downstream, DMAs, which preempt control of the system bus away from the first dimension DMA through a multi-layer bus arbiter until the higher dimension DMA transfer is complete. Control of the system bus is then restored to the first dimension DMA.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: April 8, 1997
    Assignee: United Microelectronics Corp.
    Inventors: Chang-Shan Chen, Yung-Cha Dung
  • Patent number: 5617057
    Abstract: A bi-directional control circuit for preventing the improper functioning of a pass transistor MN1 in a CMOS circuit due to abnormally high voltages on its source and drain nodes IO1 and IO2, involves controlling the voltage V1 on gate of MN1 using a gate node N1 that is coupled to supply voltage VCC under the control of two transistor pairs MN3, MN4 and MP3, MP4 that sense the voltages on IO1 and IO2, and an inverter pair MP2, MN2 having a voltage signal ENB input on its gates. If the voltages on nodes IO1 and IO2 both go high, MP3 and MP4 tend to turn OFF dropping gate voltage V1, via MP2, below VCC and tending to turn MN1 OFF. Leakage from node N1 in such event occurs through a small current bleed network formed by three transistors MN6, MN7, and MN8.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: April 1, 1997
    Assignee: Cypress Semiconductor, Inc.
    Inventors: David B. Rees, Martin J. Steadman
  • Patent number: 5614298
    Abstract: A nonwoven fabric having biodegradability which can be advantageously used as a biodegradable material for general disposable-type household supplies represented by such items as sanitary materials, wiping cloths, and packaging materials. The nonwoven fabric is formed of a fiber material made of poly-.epsilon.-caprolactone and/or poly-.beta.-propiolactone. The nonwoven fabric contains not less than 20% by weight of such a fiber material having a filament fineness of 0.8 to 6 denier. This provides sufficient tensile strength and soft hand which enable the nonwoven fabric to be advantageously used in practical applications. Where the nonwoven fabric is formed of a superfine fiber of the above noted type having a filament fineness of less than 0.8 denier, it has particularly remarkable soft hand.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: March 25, 1997
    Assignee: Unitika Ltd.
    Inventors: Hiroshi Tanaka, Yoshiki Miyahara, Satoshi Kasetani, Kouji Esaki, Shigetaka Nishimura, Takashi Inoue
  • Patent number: 5613844
    Abstract: A submersible electronic drive module for a vehicle in-tank fuel pump which includes a circuit board assembly having an input connector for receiving a current, an output connector for applying electric power to a fuel pump electric motor, and electrical components for supplying electric power to the motor as a function of vehicle fuel demand. A heat sink of a heat conductive material is thermally connected to the circuit board assembly which absorbs heat generated by the electrical components on the circuit board assembly. Fuel passes through the heat sink to cool it and thus the circuit board assembly and electrical components. A fuel-impervious casing encapsulates the drive module so that fuel is prevented from contacting the circuit board assembly and electrical components. The electronic drive module is removably attached to the fuel pump and is mounted within a fuel tank of an automotive fuel system.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: March 25, 1997
    Assignee: Walbro Corporation
    Inventors: Charles H. Tuckey, Kirk D. Doane, Kevin L. Williams
  • Patent number: 5613714
    Abstract: A separation preventive pipe joint is provided. A locking ring provided on an inner periphery of a socket is engaged with a projection formed on an outer periphery of an end portion of a spigot to prevent the spigot from being separated from the socket. When the spigot is to move deeper in the socket, a sleeve provided inside the socket abuts the end of the spigot to prevent the movement of the spigot. The movement of the spigot may otherwise be prevented by locating a deeper end face of the socket adjacent to the projection of the spigot. The projection fills up a clearance between the outer periphery of the spigot and the inner periphery of an open end portion of the socket, thereby preventing the spigot and the socket from bending relative to each other. The clearance may otherwise be filled up by means of a ring disposed on the inner periphery of the socket and bolts to be screwed into the socket from the outer periphery thereof to press the ring against the outer periphery of the spigot.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: March 25, 1997
    Assignee: Kubota Corporation
    Inventors: Toshio Toshima, Takahiro Ishihara, Takashi Yokomizo
  • Patent number: 5611312
    Abstract: A small engine carburetor with manually controlled choke and throttle valves and associated idle ports and main metering nozzle supplied with fuel from a common metering chamber. The A/F is automatically adjusted by a solenoid operated poppet valve and/or gear driven needle valve and cooperative electronic control circuitry and system components built-in to the carburetor. A combined accelerator pump and idle circuit shut-off mechanism is also built-in and mechanically operated by the throttle shaft so that only the main nozzle supplies fuel when the engine is running above fast idle. A mechanical choke/throttle interlock mechanism also prevents partial choking when the engine is running above fast idle, and throttle operation above fast idle when choking.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: March 18, 1997
    Assignee: Walbro Corporation
    Inventors: Mark S. Swanson, Eric L. King
  • Patent number: 5611128
    Abstract: A continuous cast positive grid of lead having substantially improved corrosion resistance and decreased growth in a positive plate of a lead-acid battery and a continuous cast negative grid of lead having substantially increased tensile strength for a lead-acid battery. A web of lead is continuously cast with a series of succeeding grid blanks of uniform thickness which are cold worked to reduce the positive grid thickness by at least 3:1 and the negative grid thickness in the range of about 1.5:1 to 2.8:1 preferably by passing through the nip of each of a plurality of successive compression rollers. Electro-chemically active paste is applied to the reduced webs, preferably flash dried, and individual pasted grids are cut from the reduced and pasted webs to provide positive plates and negative plates for a lead-acid battery.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 18, 1997
    Assignee: Wirtz Manufacturing Co., Inc.
    Inventor: John O. Wirtz
  • Patent number: 5609809
    Abstract: A method of making a nonwoven fabric having biodegradability which can be advantageously used as a biodegradable material for general disposable-type household supplies represented by such items as sanitary materials, wiping cloths, and packaging materials. The nonwoven fabric is formed of a fiber material made of poly-.epsilon.-caprolactone and/or poly-.beta.-propiolactone. The nonwoven fabric contains not less than 20% by weight of such a fiber material having a filament fineness of 0.8 to 6 denier. This provides sufficient tensile strength and soft hand which enable the nonwoven fabric to be advantageously used in practical applications. Where the nonwoven fabric is formed of a superfine fiber of the above noted type having a filament fineness of less than 0.8 denier, it has particularly remarkable soft hand.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: March 11, 1997
    Assignee: Unitika Ltd
    Inventors: Hiroshi Tanaka, Yoshiki Miyahara, Satoshi Kasetani, Kouji Esaki, Shigetaka Nishimura, Takashi Inoue
  • Patent number: 5609368
    Abstract: A separation preventive pipe joint is provided, in which a locking ring is held by an elastic ring with its axis centered in a locking ring receiving groove. An outer peripheral projection is formed on an end portion of the spigot, the outer peripheral projection being engageable with the locking ring from a location deeper than the locking ring. An inner peripheral projection is formed in an inner peripheral portion of the socket which is located deeper than the locking ring receiving groove for backing up the locking ring. A first inner peripheral surface having a larger diameter than the inner peripheral projection is formed in an inner peripheral portion of the socket which is located deeper than the inner peripheral projection. A second inner peripheral surface is formed between the first inner peripheral surface and the inner peripheral projection, the second inner peripheral surface being larger than the inner peripheral projection and smaller than the first inner peripheral surface in diameter.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: March 11, 1997
    Assignee: Kubota Corporation
    Inventors: Atsushi Maki, Toshio Toshima, Takahiro Ishihara
  • Patent number: 5610104
    Abstract: The present invention concerns a method for making an identification mark on a silicon surface. In a preferred embodiment, the identification mark formed on the silicon surface does not substantially score the silicon. A silicon or silicon dioxide surface coated with an insulating layer is marked by laser scribing, leaving an exposed area on the silicon or the silicon dioxide. The exposed area on the silicon wafer is preferably not marked by the laser scribing. The exposed silicon surface is then oxidized by dry or wet oxidizing. The silicon oxide can be subsequently removed to leave an etched mark. The method reduces or eliminates the formation of stresses and silicon slag at the etched mark that can cause defects and reduce yield.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: March 11, 1997
    Assignee: Cypress Semiconductor Corporation
    Inventor: Peter Mitchell
  • Patent number: 5607237
    Abstract: A generally cubical collapsible bag with six generally rectangular walls of a flexible woven fabric material. Lift straps attached adjacent two opposed top edges of the bag, are connected by a pair of substantially inextensible linking members. Preferably, each linking member connects two corner lift straps and an intermediate lift strap between them.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: March 4, 1997
    Assignee: Custom Packaging Systems, Inc.
    Inventor: Lee LaFleur
  • Patent number: 5607637
    Abstract: A plastic component including a plastic body having a first body portion and an integral tubular portion defining a tubular extension and a lip seal on the tubular body, the plastic body being formed in situ on the lip seal. The method of making the plastic component including providing a first mold cavity having a portion for defining the body of the component and a communicating second cavity for defining the tubular extension, positioning an annular lip seal in the cavity defining the tubular extension, and injecting molten plastic resin in the first cavity and the second cavity to define the plastic component with the lip seal positioned on the tubular extension.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 4, 1997
    Assignees: IBS Filtran GmbH, Filtran
    Inventors: Markus Beer, Kenneth V. Nelson
  • Patent number: 5608270
    Abstract: A vehicle restraint system that includes an impact sensor for sensing a vehicle impact to provide an electrical impact signal, an occupant restraint such as an air bag to restrain motion of a vehicle occupant, and an electronic control circuit responsive to the impact signal for operating the occupant restraint. The impact sensor includes a permanent magnet axially slidable within a linear cavity and resiliently biased to one end of the cavity, such that vehicle impact forces on the sensor urge the magnet to slide axially toward the opposing end of the cavity against the biasing forces. A magnetic sensor is disposed adjacent to the cavity and is characterized by providing the electrical impact signal as an analog electrical signal that varies in magnitude as a continuous monotonic function of axial position of the magnet within the cavity.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: March 4, 1997
    Inventor: Jack B. Meister
  • Patent number: 5606588
    Abstract: The present invention provides a system and an apparatus to produce x-rays from plasmas by focusing an intense, short duration optical pulse from a laser onto a target. The concentrated energy contained in the focused laser beam ionizes the target material, raising it to a temperature at which ions are produced in a chain reaction ionization, and x-rays are emitted when ions become de-excited (their electrons change energy level) or free electrons recombine with the ions in the plasma. The method comprises controlling pulse time duration of x-rays emitted from a plasma-forming target by generating a beam of one or more laser pulses; adjusting the intensity of the laser pulse to obtain a desired intensity incident at a surface of the plasma-forming target matter; directing the laser pulse onto the surface of the plasma-forming matter to generate the x-rays having a pulse duration which changes in proportion to a change in the incident laser pulse intensity.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: February 25, 1997
    Assignee: The Regents of the University of Michigan
    Inventors: Donald Umstadter, Jonathan Workman, Anatoly Maksimchuk, Xinbing Liu
  • Patent number: RE35481
    Abstract: A method and multiple station flexible boring machine for transferring and locating a pallet carrying a workpiece to be machined. The machine has at least two machining stations and a part loading and unloading station adjacent a transfer table carried by a base for carrying, generally locating and transferring a pallet and a workpiece to each station. The pallet has a curvic coupling locator ring with a plurality of circumferentially spaced and generally radially extending teeth for complementary mating engagement with a locator ring on an independent base of each station to accurately radially, axially and circumferentially locate the pallet on the station base. At the load station, the locator ring on the pallet is received in complementary mating engagement with the locator ring on the load base accurately locating the pallet with respect to the base and a workpiece is loaded, accurately located with respect to the load base and clamped to the pallet.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: March 25, 1997
    Assignee: Western Atlas, Inc.
    Inventors: Richard Wioskowski, Howard H. Schafer, George P. Bader, Edward J. Irvine