Patents Represented by Law Firm Ross, Howison, Clapp & Korn
  • Patent number: 5319343
    Abstract: An integrated magnetic filter inductor having series and common mode windings includes a magnetic core (44) having a first leg (46), a second leg (48), and a third leg (50). The first leg (46) is connected to the second leg (48) with bridging structures (52) and (54). In a similar manner, the third leg (50) is connected to the second leg (48) with bridging structures (56) and (58). A common mode winding (64) is wound about the bridging structure (52) with a given dot orientation. A common mode winding (66) is wound about the other bridging structure (54) with the same dot polarity. Current flowing into the dot terminal of the common mode winding (64) and out of the dot terminal of the common mode winding (66) result in a net zero magnetic flux induced in the magnetic structure (44). A common mode winding (68) is wound about the bridging structure (56) with a predetermined dot polarity. A common mode winding (70) is wound about the other bridging structure (58) with the same dot polarity.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 7, 1994
    Assignee: Powercube Corporation
    Inventor: Paul A. Jeffries
  • Patent number: 5311843
    Abstract: A radially fired water heating apparatus (10) having a plurality of stacked segments of multiple-loop, finned coiled tubing (58) separated by inner and outer support baffles (86, 88), all contained within a cylindrical baffle (20) which cooperates with the coiled tubing (58) and support baffles (86, 88) to direct combustion by-products into an annulus (24) promoting heat transfer to a countercurrent flow of inlet air, the water being supplied to and recovered from the stacked segments of coiled tubing (58) through inlet and outlet headers (54, 56) disposed outside cylindrical baffle (20) that can be selectively modified by installing or removing baffles (90, 92) for either single-pass or multiple-pass operation.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: May 17, 1994
    Assignee: Weben-Jarco, Inc.
    Inventor: Kevin J. Stuart
  • Patent number: 5297733
    Abstract: A flame spray gun comprising a trigger-operated valve for selectively controlling the flow of conveying air to an eductor disposed in the powder flow nozzle, thereby providing the operator with substantially instantaneous control over the powder feed rate through the gun.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: March 29, 1994
    Assignee: Plastic Flamecoat Systems, Inc.
    Inventors: Leonard R. Burks, Mark T. Dobek
  • Patent number: 5297335
    Abstract: A quick disconnect system and method for repairing and preventing further damage to cables, conductors, or wiring, such as control cables in a nuclear power plant extending from a control room to numerous motor operators for valves located within a radioactive hot-zone. The method includes the steps of determinating the electrical cable from the motor operator, removing any damaged portion of the electrical cable, installing a terminal box near the point of removal, reterminating the undamaged electrical cable to the inlet of the terminal box, installing an extension cable between the terminal box and the motor operator, and terminating the extension cable to the motor operator with a multi-contact mating connector.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: March 29, 1994
    Inventor: Paul H. Vancil
  • Patent number: 5294166
    Abstract: A protective liner (10) for a vehicle interior that comprises seat and floorboard portions (12, 14) that are preferably releasably connected by hook and loop fastening means (34A, 34B). The floorboard portion (14) of the subject liner (10) preferably further comprises laterally extending wing sections (26) adapted to provide protective coverage adjacent to the door threshold and the transmission or driveline tunnel of a vehicle.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: March 15, 1994
    Inventor: Robert K. Shapland
  • Patent number: 5293437
    Abstract: An image transfer system includes a display (10), which has associated therewith a plurality of pixels formed by optical fiber ends (12) which provide the terminating end of a plurality of optical fibers disposed in a fiber optic bundle (14). The opposite end of the optical fibers in the fiber optic bundle (14) are disposed on a display module (16), which is operable to generate a transferred image through the fiber optic bundle (14). Each of the optical fibers associated with the display module (16) have associated therewith a light emitting diode (LED) (20). Each of the LEDs (20) are operable to directly drive each of the associated optical fibers. The LEDs (20) are arranged in a display array (30) and are controlled to generate information associated with a given pixel. The optical fiber ends (12) are fabricated with a tapered configuration such that the end of each of the associated optical fibers tapers from a narrow dimension to a wider diameter, this being a linear taper on the end thereof.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: March 8, 1994
    Assignee: Visual Optics, Inc.
    Inventor: Michael A. Nixon
  • Patent number: 5291230
    Abstract: An ophthalmic device for use with an ophthalmic eyeglass frame includes a detachable nosepiece designed to permit vertical and angular adjustment to fit the bridge of a user's nose and to permit the adjustment of the level of the eyeglass lens in relationship to the plane of the user's eye and includes first and second mounting tabs disposed on the eyeglass frame. A generally U-shaped nosepiece includes first and second legs terminating in first and second ends, respectively. The first leg includes a plurality of spaced apart apertures. The second leg includes a plurality of spaced apart apertures, each aperture being aligned with one of the plurality of spaced apart apertures located on the first leg. The nosepiece is disposed between the first and second mounting tabs, such that the first leg is disposed adjacent to the second mounting tab.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: March 1, 1994
    Inventor: James B. Bradley
  • Patent number: 5285973
    Abstract: A shredder including a shredder housing having an inside, an outside, side walls, end walls, such that the end walls and side walls are engineered and joined together to maintain tight tolerance within the shredder. The end walls and side walls define a top inlet opening and a bottom outlet opening. Two parallel spaced apart shafts are horizontally aligned with each other and rotationally mounted through the end walls for receiving rotational power. Adjustable speed rotational motors engage each of the shafts for rotating them in counter-rotational directions. A plurality of uniform thickness disk-shaped blades are alternatingly positioned with interposed disk-shaped spacers placed therebetween. The spacers have a thickness slightly thicker than the blades.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: February 15, 1994
    Assignee: Advanced Environmental Recycling Technologies, Inc.
    Inventors: Billy D. Goforth, Charles L. Goforth, Joe G. Brooks, J. Douglas Brooks
  • Patent number: 5284719
    Abstract: A battery detect circuit (32) is connected to the battery with the current input to the battery and extracted from the battery measured with a sense resistor (50) and then converted to charge and discharge pulses with a V/F converter (52). A microcontroller (64) is operable to increment a Nominal Available Charge (NAC) register (180) during a charge operation, and to increment a Discharge Count Register (DCR) (184) during a discharge operation. The NAC register (180) indicates the available charge, which value is output to a display (34). The maximum value to which the NAC value can rise is limited by a value stored in the last measured discharge register (182). This value represents the value stored in the DCR (184) whenever the battery is discharged from an apparent full state to a fully discharged state. This results in a qualified transfer to the LMD register (182) such that no knowledge of the actual battery charge is necessary.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: February 8, 1994
    Assignee: Benchmarq Microelectronics, Inc.
    Inventors: John E. Landau, Wallace E. Matthews, David L. Freeman
  • Patent number: 5282573
    Abstract: A flame spray coating system includes a thermoplastic resin powder supply hopper, an eductor adapted to entrain powder in a stream of conveying air, a valve disposed between the powder hopper and eductor for controlling the flow of powder from the hopper into the eductor, a flame spray gun and conduits interconnected between the flame spray gun and pressurized air and combustion gas sources for delivering flows of propelling air, conveying air, powder entrained in conveying air, and a combustible gas to the flame spray gun, and an eductor control disposed on the flame spray gun for controlling operation of the valve disposed between the powder hopper and eductor. A solid circular coating pattern is created with a nozzle constructed for twirling the entrained powder and conveying air. Interchangeable combustion nozzles of different sizes allow the same spray gun to be used for different substrate conditions.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: February 1, 1994
    Assignee: Plastic Flamecoat Systems, Inc.
    Inventor: James H. Reimer
  • Patent number: 5283792
    Abstract: A power fail control system for a CPU (10) and external memory (16) utilizes a controller (18). The controller (18) is operable to detect an early power fail situation and output an interrupt to the CPU (10). The CPU (10) then goes into a power down sequence and stores critical instructions in an internal memory array (30) constituting a hidden memory during the power down sequence. An out of tolerance detector detects when the power supply voltage has fallen below a predetermined threshold and then generates reset signal. The reset signal is input to the CPU (10) to indicate that no further instructions are executable. In addition, a Chip Enable switch (46) is operated to inhibit memory control signals from being transferred from the CPU (10) to the memory (16). The internal hidden memory (30) is also inhibited from having data written thereto in the presence of the reset signal. A backup battery (22) is provided which is connected to one side of a switch.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: February 1, 1994
    Assignee: Benchmarq Microelectronics, Inc.
    Inventors: William F. Davies, Jr., Ronald T. Taylor
  • Patent number: 5279362
    Abstract: A fabric sleeve is used to hold gravel pack granular material in place over the open (slotted, perforated, punched, louvered, etc.) portions of a well screen. A well screen is described having an attachment device oriented to form longitudinal fabric sleeve pockets parallel to the longitudinal axis of the well screen. The pockets are filled with a gravel pack material.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: January 18, 1994
    Inventor: James R. Pool
  • Patent number: 5277758
    Abstract: A method for recycling waste plastic material, from polymeric film or hydropulper waste, including plastic and cellulosic fiber or organic contaminants. The method includes the steps of introducing the waste plastic material into a size reduction unit, and reducing the size of the waste plastic material to particles having a maximum dimension ranging between about 1 inch and about 8 inches; mechanically hammering and rubbing the plastic material for separating a portion of the cellulosic fiber from the plastic; separating another portion of the cellulosic fiber from the plastic by flotation with agitation; further reducing the particle size of the plastic to a maximum dimension of about 1/2 inch; dewatering the plastic; drying the plastic to a moisture content of less than about 10 weight percent; and rolling the plastic into pellets.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: January 11, 1994
    Assignee: Advanced Environmental Recycling Technologies, Inc.
    Inventors: Joe G. Brooks, Billy D. Goforth, Charles L. Goforth, J. Douglas Brooks
  • Patent number: 5276490
    Abstract: A buried electrode drum (48) includes a rigid core (10) over which a controlled durometer layer (12) is disposed. On the surface of the controlled durometer layer (12) is disposed a buried electrode layer (14), having electrodes (16) disposed therein along the longitudinal axis of the drum (48). The electrode layer (14) is covered by a controlled resistivity layer (18). The controlled resistivity layer (18) is operable to be contacted on the surface thereof by an electrode (24) to allow a voltage to be transferred to the underlying electrodes (16) and therefrom along the longitudinal axis of the drum (48). Various electrodes can be disposed about the peripheral edge of the drum (48) to allow any pattern to be formed on the surface of the drum (48).
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: January 4, 1994
    Assignee: T/R Systems, Inc.
    Inventors: Jack N. Bartholmae, E. Neal Tompkins
  • Patent number: 5272757
    Abstract: A multi-dimensional sound reproduction system is provided for receiving a binaural or other appropriately produced recording on left and right channels and outputting the recording to localized speakers (58) and (60). The localized speakers (58) and (60) are supported on a pair of glasses (70) in housings (80) and (82). Each of the speakers (58) and (60) are directed rearward toward the pinna (68) of the associated left and right ear of the individual and disposed proximate to the zygomatic arch of the listener (26). In this manner, the localized speakers (58) and (60) are separated from the opposite one of the ears of the listener (26) such as not to disturb the conch resonance or the unique pinna response of the listener's ear. The low frequency end of the frequency spectrum for the binaural recording is filtered from the input to the localized speakers (58) and (60), summed and then output on external speaker (52).
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: December 21, 1993
    Assignee: Sonics Associates, Inc.
    Inventors: William C. Scofield, Lynn A. McCroskey
  • Patent number: 5269182
    Abstract: A mercury leak containment device for removable attachment to an existing natural gas meter valve includes a container having a top opening for enclosing the fittings at which mercury may leak from the gas meter valve, a top cap for closing the top opening of the container when it is installed on an existing gas meter valve to deflect precipitation from entering the container, and a removable support for holding the mercury leak containment device in place with the fittings of the valve which are most likely to leak mercury fully enclosed.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: December 14, 1993
    Inventor: Tommy H. Posey
  • Patent number: D343912
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: February 1, 1994
    Inventor: Andy Huang
  • Patent number: D345712
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: April 5, 1994
    Assignee: Telestate International
    Inventor: John Rounds
  • Patent number: D346439
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: April 26, 1994
    Assignee: Pan Air Electric Co., Ltd.
    Inventor: Chen-Tze Liu
  • Patent number: D346886
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: May 10, 1994
    Inventor: Calvin P. Glade