Patents Represented by Law Firm Pravel, Hewitt, Kimball
  • Patent number: 6280761
    Abstract: A method for smoking cessation therapy is described that utilizing an improved nicotine lozenge to satisfy transient craving. The lozenge contains nicotine, a nonnutritive sweetener and an absorbent excipient.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: August 28, 2001
    Assignee: Pharmacia AB
    Inventor: Gian Carlo Santus
  • Patent number: 6189416
    Abstract: A stud bolt tool and method for using the stud bolt tool to install or remove a threaded stud bolt from a threaded blind bore. The stud bolt tool has a cylindrical housing having a first and second surface and an internally threaded bore communicating with the first and second surfaces. The housing includes a plurality of circumferentially spaced ports surrounding the internally threaded bore. The ports communicate with the first and second surfaces of the cylindrical housing and each port has a threaded portion extending to the second surface. A plurality of balls are slidably stacked in each port. The ball nearest the first surface is capable of partially protruding beyond the first surface and is also capable of retracting within the port below the first housing surface. A screw threadably engages each threaded portion of each port. Advancement of the screw into the port forces the ball to partially protrude beyond the first surface.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: February 20, 2001
    Inventor: Raymond D. Groom
  • Patent number: 6020814
    Abstract: A passive warning system for communicating vehicular deceleration and other information through a warning light. A microprocessor-based warning system according to the invention accounts for variations in vehicular speed and ambient driving conditions in generating a warning signal having an intensity or blinking rate related to a rate of deceleration. The microprocessor is also programmed to measure deceleration more frequently as the speed of the vehicle increases, allowing information to be communicated in a timely manner. In one embodiment of the invention, the microprocessor is programmed to maintain the highest intensity warning signal activated for a predetermined period of time in order to inform other vehicles of an earlier speed reduction. Further, a warning system according to the invention can be configured to communicate a high intensity warning signal if the wheels of the vehicle become suddenly blocked or rotate at a rate that is disproportionate to the speed of the vehicle.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: February 1, 2000
    Inventor: Ivan N. Robert
  • Patent number: 6018620
    Abstract: Double buffering operations to reduce host bus hold times when an expansion bus master is accessing the main memory on a host bus of a computer system. A system data buffer coupled between the main memory and the expansion bus includes 256-bit double read and write buffers. A memory controller coupled to the double read and write buffers and to the expansion bus includes primary and secondary address latches corresponding to the double buffers. The memory controller detects access to the main memory, compares the expansion bus address with the primary and secondary addresses and controls the double read and write buffers and the primary and secondary address latches accordingly. During write operations, data to be written to the same line of memory is written to a first of the double write buffers until a write occurs to an address to a different line before data is transferred to main memory.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: January 25, 2000
    Assignee: Compaq Computer Corporation
    Inventors: Paul R. Culley, Mark Taylor
  • Patent number: 5947237
    Abstract: Disclosed are devices for influencing and/or controlling relative motion between members, such as vibration damping or absorbing devices, clutches and brakes. The devices comprise a magnet on one member and a field cooled superconductor on the other member. The devices utilize the interaction of the magnetic field of the magnet as it moves through the pinned flux in the superconductor to either influence or control relative motion.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: September 7, 1999
    Assignee: University of Houston - University Park
    Inventors: Chase K. McMichael, Ki-Bui Ma, Wei-Kan Chu
  • Patent number: 5931242
    Abstract: A dual acting hydraulic jarring enhancer which is particularly well suited for coiled tubing application. A common annular chamber is formed between reciprocating cylindrical assemblies, and a piston is positioned within the annular chamber. The inner cylindrical assembly has a member to contact the piston and move it relative to the outer cylindrical assembly in one direction while the outer cylindrical assembly has a member to prohibit longitudinal movement of the piston relative to the inner cylindrical assembly in a second direction. In this manner, the present invention provides a tool with overall minimal length by using a singular annular chamber capable of being divided into two other chambers and providing an accelerating effect to a hammer/anvil of an associated jarring tool in either an upjarring or downjarring mode.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: August 3, 1999
    Assignee: IRI International Corporation
    Inventor: Mark C. Oettli
  • Patent number: 5927222
    Abstract: A pollution control system to control pollutants in water surrounding a drydock includes a housing extending from each end of the drydock wing walls about the perimeter of the drydock so as to completely encircle an inboard deck of the drydock. The drydock moves between a floating position to a submerged position upon filling drydock buoyancy tanks with water. The housing includes a slot to allow positioning of a removable screen in an opening in the top of the housing. The screens allow the water to flow to and from the deck, as the deck moves between the floating position and the submerged position. A baffle plate is positioned inboard of the housing on the drydock deck to inhibit movement of pollutants between the baffle plate and the housing. Advantageously, a process for reducing pollutants in water surrounding a drydock includes removal of the screen from the housing to protect it from ultraviolet effects or from welding operations during maintenance and repair of a drydocked vessel.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: July 27, 1999
    Inventors: Frank W. Eakin, Guy S. Eakin
  • Patent number: 5910689
    Abstract: A standby ballast for a fluorescent lamp in a lighting circuit powered normally by a main AC power supply, and in the event of main power supply failure, powered by an auxiliary standby generator, the standby ballast operable to provide AC power to the lamp for the interim between failure of main AC power supply and the supply of stabilized auxiliary AC power from the standby generator as it has started and reached normal operating condition.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: June 8, 1999
    Assignee: The Bodine Company, Inc.
    Inventors: Alexander L. Ertz, III, Thomas A. Mascari, Jr., Reginald J. Rodriguez
  • Patent number: 5908365
    Abstract: A self-contained tool incorporates an electronic system for significantly reducing the number of batteries required to detonate an explosive downhole, making the tool short enough for transport by helicopter, rather than by boat, to an offshore well. This shortness is further beneficial for negotiating tight-radius bends in deviated wells. Safety is improved by a shear pin holding a pressure-activated switch in an open position until sufficient pressure shears the shear pin. Control from the surface is provided in applications where fluid pressure is controlled at the surface and raised to shear the shear pin. Longer run-in time is better accommodated by the combination of the electronic system and the shear pin.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 1, 1999
    Assignee: Preeminent Energy Services, Inc.
    Inventors: Craig C. LaJaunie, Steven C. Headley
  • Patent number: 5909691
    Abstract: For use with a computer system having an intelligent mass storage disk array subsystem, including a microprocessor controller, a method for the distribution of data within the disk array based upon logical commands issued by the computer system. The disk controller reads a logical command and translates the commands into multiple drive specific commands, including drive physical parameter information such as head, sector and cylinder selection. The calculation of these physical parameters is based upon a number of factors including the operating system installed in the computer system, the type of interleave scheme, if any, specified by the computer system configuration, and disk specific parameters. The physical drive requests are then placed in a queue and executed by the microprocessor controller.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 1, 1999
    Assignee: Compaq Computer Corporation
    Inventors: Stephen M. Schultz, David S. Schmenk, E. David Neufeld, David L. Grant, David L. Flower
  • Patent number: 5906806
    Abstract: A system and a process for combusting hydrocarbons to recover energy and the carbon dioxide resulting from the combustion is provided. The process utilizes a two-stage combustion process, each stage utilizing water injection and a recirculation stream to increase the efficiency of combustion to generate larger proportions of carbon dioxide. An energy recovery boiler is used to recover heat energy from the combustion product. Combustion product is then cleaned and the carbon dioxide is separated and condensed into a useable liquid carbon dioxide product.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: May 25, 1999
    Inventor: Steve L. Clark
  • Patent number: 5903254
    Abstract: A user interface of simplifying selection of speaker volume level and power conservation level in a computer system. An icon is presented for setting the speaker volume which includes a bar graph of relative speaker volume. By depressing left or right arrow keys the graph moves and the volume level of the speaker is changed. By depressing the down arrow key when setting the volume level, the speaker is beeped to allow for a level check during the setting process. A series of icons are used to indicate and select power conservation level. Each icon includes a battery with a faucet attached to the side of the battery. Different water flow rates indicate the various conservation levels. A human figure is located adjacent the faucet to indicate the user-customerized conservation level.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: May 11, 1999
    Assignee: Compaq Computer Corporation
    Inventors: Kevin Warren Mundt, Randall L. Hess, David B. Potter
  • Patent number: 5900195
    Abstract: A method and apparatus for protecting exposed pipeline joints on weight coated pipelines used in offshore applications. The method allows quick installation on a lay barge where pipeline sections are being welded together for offshore installation. The method does not require a long cure time before handling. The method protects the corrosion coating on pipeline joint sections not covered with weight coat by forming a pliable sheet of polyethylene into a cylindrical cover material sleeve over the exposed pipeline joint connection. Polyurethane chemicals are reacted to form a high density foam which fills an annular space between the pipe and the cover material sleeve. The cover material sleeve and the foam form a composite system to protect the joint connection whereby the foam provides continuous compressive reinforcements and impact resistance and the sleeve provides puncture resistance and protection from water jetting/post trenching operations plus abrasion resistance.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: May 4, 1999
    Assignee: Urethane Products International
    Inventors: Paul L. Pool, William H. Gowan
  • Patent number: 5897663
    Abstract: A computer system having a bridge and I.sup.2 C EEPROMs is provided with a host I.sup.2 C controller implemented in the bridge for accelerating the reading of the I.sup.2 C EEPROMs. The host I.sup.2 C controller accelerates the reading of I.sup.2 C EEPROMs by executing current address reads of the I.sup.2 C EEPROM when a requested slave address matches a current slave address stored in a current slave address register, and the requested EEPROM address matches a current EEPROM address stored in a current EEPROM address counter. The host I.sup.2 C controller thus eliminates the use of software to track the read accesses of a plurality of masters to an I.sup.2 C EEPROM and also eliminates the use of bus command protocols to support both random reads and current address reads to an I.sup.2 C EEPROM.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: April 27, 1999
    Assignee: Compaq Computer Corporation
    Inventor: Charles J. Stancil
  • Patent number: 5897732
    Abstract: The invention pertains to the apparatus and process for shaping and forming of thermal insulation materials around tubes and pipes in a continuous production process wherein the tube or pipe and a long singular strip of insulating material passes linear with the tube or pipe through a shaping die. The shaping die forms the insulating material around the circumference of the tube or pipe without substantial compression and is captured by overlapping coils of helical wound tape, wire or like material.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: April 27, 1999
    Assignee: Thermon Manufacturing Company
    Inventors: David L. Schlameus, Donald W. Hirsch
  • Patent number: 5896494
    Abstract: In a diagnostic application, a plurality of independent test modules are executed in a multi-tasking fashion. The diagnostic application is modular with a front end module issuing commands to lower level modules. A lower level test dispatcher module receives information from the plurality of test modules pertaining to test parameters, including whether the test module is multitaskable. A test dispatcher controls the launching of the test modules according to the test parameters. A test definition tool is provided to graphically develop test scripts by moving icons from one list to another. The output of the test definition tool is a scripting language readable by the diagnostic application.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: April 20, 1999
    Assignee: Compaq Computer Corporation
    Inventors: Robert Perugini, John Scott Harsany, Robert E. Supak
  • Patent number: 5895490
    Abstract: In a microcomputer system implementing a cache memory subsystem, the cache performance on write allocation cycles is improved. When the processor writes to a line of the cache memory that results in a cache tag miss, after the processor write operation is suspended, the data is allocated from main memory into the cache memory. During this main memory read, however, instead of setting the state of the line of memory to unmodified, its state is set to modified. On the subsequent processor read operation, a cycle is saved because the modified bit does not have to be changed from unmodified to modified.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: April 20, 1999
    Assignee: Compaq Computer Corporation
    Inventor: Jens K. Ramsey
  • Patent number: RE38058
    Abstract: A guide apparatus for preparing the femur of a patient with a rotary mill to receive a femoral hip prosthesis includes a V-shaped guide body having a lower end base portion adapted to extend into the intermedullary canal of the femur and an upper end portion comprised of at least two spaced apart struts so that the overall guide body had a configuration substantially the same as the prosthesis body sought to be implanted in the patient. The lower end of the guide body base provides one or more hemispherical receptacles for holding the hemispherical end portion of a spinning mill bit. A preferably removable transverse guide rail has connection pins at one end portion thereof for forming a connection with the upper end of the guide body at one of the struts, the arm having a curved surface that is adapted to guide the mill bit during preparation of the intermedullary canal of the patient's femur for receiving a hip prosthesis thereafter.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: April 1, 2003
    Assignee: Smith & Nephew, Inc.
    Inventor: Thomas W. Fallin
  • Patent number: D408023
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: April 13, 1999
    Assignee: Compaq Computer Corporation
    Inventor: Phillip D. Prestigomo
  • Patent number: D414911
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: October 12, 1999
    Assignee: Smith & Nephew Inc.
    Inventor: Barbara L. Basaj