Patents Represented by Law Firm Johnson & Gibbs
  • Patent number: 5047394
    Abstract: Combination of a flattened cathode in a cylindrical magnetron sputtering system and positioning of a substrate relatively close to the flattened cathode allows deposition of a uniform film having good composition. The system and method of the present invention is especially suitable for depositing films using YBCO and BCSCO targets.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: September 10, 1991
    Assignee: University of Houston System
    Inventors: John C. Wolfe, Yat-lung R. Chau, Wong-sik S. Ho
  • Patent number: 5046141
    Abstract: A low conductivity mounting stud for attaching an electronic component to a base structure such as a heat sink eliminates the need for several insulating washers and other insulators around the shaft of the mounting stud. The mounting stud may be composed of ceramic material such as partially stabilized zirconia. The mounting stud is secured with a press-on fastener such as a "Tinnerman nut".
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: September 3, 1991
    Assignee: Compaq Computer Corporation
    Inventor: Richard E. Walker
  • Patent number: 5044602
    Abstract: A blowout preventer for use on wells and especially adapted to use on a pumping well during a steam flood operation including an upper housing having oppositely disposed rams for extension and retraction between the sealing and non-sealing with a longitudinal member through the blowout preventer into a well, such a polished rod of a pump, a lower housing connected with the upper housing, and a heat responsive seal assembly in the lower housing for sealing with the polished rod during steam flooding, the heat responsive seal assembly including an elastomer seal plug designed to swell to form a seal with the polished rod during steam flooding and including means to compress the seal plug after steam flooding to return the plug to an original non-sealing volume and size below the steam flooding temperature.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: September 3, 1991
    Assignee: Double-E, Inc.
    Inventor: Robert L. Heinonen
  • Patent number: 5044650
    Abstract: A removable wheelchair handle for mounting on a wheelchair to permit an attendant to maneuver the wheelchair from a location behind and above the back of the wheelchair inlcuding a handgrip cross bar, a support post connected with each end of the crossbar, mounting members connected with the support posts in spaced parallel relation and having mounting pins at the distal ends for insertion into open ends of handles on the wheelchair. One embodiment of the removable handle is formed by two telescopically connected elbow members which form the handgrip crossbar and portions of spaced mounting posts at opposite ends of the crossbar and the other portions of the mounting posts and mounting members connected to the ends of the mounting posts are formed by two elbow members telescopically connected with the first two elbow members.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: September 3, 1991
    Inventor: Robert Eberle, Jr.
  • Patent number: 5042337
    Abstract: A shearing device for wire rope or cables. The device incorporates a shear block system having a first cylindrical block adapted for mainly engaging an eccentric recess formed in a housing. Both the housing and the block are constructed with apertures therethrough adapted for receiving the cable or wire rope therein. Eccentric misalignment of the apertures is provided by relative rotation between the housing and the block to therein provide the shearing action. In this manner, a post-tension cable of the type utilized in concrete construction or the like, can be terminated within a recessed region with efficiency and dimensional control.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: August 27, 1991
    Inventor: Alan Rodriguez
  • Patent number: 5042453
    Abstract: A compact, high efficiency heat exchanger for a fuel-fired forced air furnace has horizontally spaced apart inlet and outlet manifold structures which are innerconnected by a horizontally spaced series of vertically serpentined, relatively small diameter flow transfer tubes. Larger diameter inlet flow tubes are positioned beneath the balance of the heat exchanger, extend parallel to the transfer tubes, and have upturned discharge ends connected to the underside of the inlet manifold. The heat exchanger is configured so that its total vertically facing peripheral surface area is considerably larger than its total horizontally facing peripheral surface area, thereby signficantly reducing undesirable outward heat loss through the vertically extending furnace housing side walls upon burner shut off and increasing the overall efficiency rating of the furnace.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: August 27, 1991
    Assignee: Rheem Manufacturing Company
    Inventor: Timothy J. Shellenberger
  • Patent number: 5036637
    Abstract: An improved mullion for a building system. The mullion has a plurality of peripheral wall and web sections defining a load bearing structure adapted for supporting the panel in sealed engagement therewith. The mullion is roll formed from thin gauged metal and further includes an integrally formed, hollow body section having portions defining a glazing pocket therein. Structural members are adapted to be disposed within the mullion body for the engagement and structural integrity thereof. The structural members are secured to the mullion body for maintaining the hollow mullion profile under loading conditions.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: August 6, 1991
    Assignee: Butler Manufacturing Corporation
    Inventor: Lawrence Biebuyck
  • Patent number: 5035441
    Abstract: A visual aid to assist a driver in maneuvering a towing vehicle toward a trailer or other vehicle to be towed for precisely aligning the hitch components of the two vehicles. The device mounts only to the towed vehicle and includes an integral bumper member to protect the vehicles should the driver back too far. The device is adaptable to all conventional trailer hitch components and is simple and easy to use. It comprises a universal adaptor, a sighting mast and a strap for attaching the assembly to the towed vehicle. The mast can be mounted in the vertical position for viewing through the back window or at an angle to extend laterally past the side of the tow vehicle to allow the driver to view the mast even if rearward visibility is blocked through the rear window of a tow vehicle. The mast is disturbed from its rest position when the hitch components are aligned.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: July 30, 1991
    Assignee: Spectra Technologies Inc.
    Inventor: Donald W. Murray
  • Patent number: 5033550
    Abstract: Apparatus and method for the production of methane gas from coalbed methane wells. The apparatus includes a production string having spaced side pocket mandrels supporting gas lift valves and defining with a well casing an annulus in the well running continuously without a packer from a coalbed seam to the wellhead and a lift gas injection line extending through the annulus along the production tubing string and connected into the side pocket mandrel for injecting lift gas into the production tubing string to produce well fluids and lift gas in the tubing string while simultaneously producing coalbed methane gas up the annulus. The method of the invention includes the steps of injecting lift gas through a lift gas injection line to a gas lift valve in a well production tubing string and producing well fluids along with lift gas up the tubing string while producing coalbed methane gas up the annulus.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: July 23, 1991
    Assignee: Otis Engineering Corporation
    Inventors: Kenneth J. Johnson, E. Alan Coats
  • Patent number: 5033177
    Abstract: Apparatus and methods for the removal and installation of sleeve bearings in a camshaft bore of an engine, such as a diesel engine. The device includes an operator rod, a bearing puller in accordance with U.S. Pat. No. 4,624,041, for engaging and pulling and/or pushing a sleeve bearing in the camshaft bore, apparatus for coupling the bearing puller along a rear end portion of the rod and at selected positions along the length of the rod for engaging sleeve bearings along the camshaft bore to both pull the bearings out of operating position and to reinstall bearings in operating positions, and apparatus for coupling the rod with a front face of the engine during the pulling and pushing of sleeve bearings for removal and installation of the bearings. In some embodiments of the apparatus the rod is operated by a wrench driven nut to pull and/or push the rod. In other embodiments the rod is operated by a hydraulic jack having an open hole piston fitting on the rod.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: July 23, 1991
    Assignee: Innovative Tools & Equipment Corporation
    Inventors: John B. Gathright, Grady C. Gathright, James J. Calloway, N. T. Rutledge
  • Patent number: 5033560
    Abstract: An earth boring bit having a body provided with a shank having a tubular bore and a head along the opposite end of said body having flow passages communicating with the bore, the head having face portions including a center end face portion, a nose portion, a shoulder portion, and a gage portion along the maximum diameter of the bit, and cutting elements mounted over said face portions having cutting faces oriented in the direction of rotation of the drill bit, the areas of the cutting faces of the cutting elements ranging from a maximum at the center face portion to a minimum at the gage portion of the bit. The cutters may be individually mounted, mounted in groups, arranged in random patterns, and arranged in a variety of other patterns, including radial longitudinal rows circumferentially spaced around the bit face.
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: July 23, 1991
    Assignee: Dresser Industries, Inc.
    Inventors: George S. Sawyer, William W. King
  • Patent number: 5032411
    Abstract: Hypotonic beverage compositions and beverage concentrates adapted for oral administration of water, physiologically essential electrolytes, nutrient minerals, carbohydrates, and other ingredients to a human body. The hypotonic beverage composition comprises an aqueous solution, either carbonated or non-carbonated, of iron, electrolytes, carbohydrates, low-caloric sweetener, and edible acid components in ranges as stated.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: July 16, 1991
    Assignee: University of Texas System Board of Regents
    Inventor: James Stray-Gundersen
  • Patent number: 5031345
    Abstract: A display scissors having two elongate members which are movable with respect to one another. The first elongate member has one end portion configured to represent a first blade element of a scissors and an opposite end portion configured to represent a first loop element of the scissors. The first loop element is curved in a clockwise direction. The second elongate member has one end portion configured to represent a second blade element of the scissors and an opposite end portion configured to represent a second loop element of the scissors. The second loop element is curved in a counter-clockwise direction. The second blade element is positioned generally parallel to the first blade element and points in a similar direction to that of the first blade element. The display scissors includes mounting means for pivotally moving the first elongate member in one direction and simultaneously and pivotally moving the second elongate member in an opposite direction about a common axis.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: July 16, 1991
    Inventor: William J. Kinney
  • Patent number: 5030135
    Abstract: An improved strain relief device is connectable to a cable end portion to resiliently resist both bending and torsional loads imposed thereon. The strain relief device is formed from a resilient material and includes a tubular body portion which receives and is fixedly secured to the cable end portion to be protected. Projecting radially outwardly from the outer side surface of the tubular body are a circumferentially spaced series of elongated, resilient rib members which extend lengthwise in a direction parallel to the axis of the strain relief body. The ribs taper radially outwardly along their lengths and collectively function to progressively resist both bending and torsional loads imposed upon the cable end portion in a manner maintaining a generally linear relationship between the bending and torsional loads on the cable end portion and the resulting axial lengths of the strain relief body portion being bent or twisted.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: July 9, 1991
    Assignee: Compaq Computer Corporation
    Inventor: Boris M. Plesinger
  • Patent number: 5030200
    Abstract: A method for externally eradicating infectious pathogenic contaminants, such as enveloped viruses, bacteria, trypanosomal and malarial parasites, present in body tissues, such as blood, blood components, semen, skin, and cornea, before the treated body tissues are introduced into, or transplanted onto, the body of a human or an animal.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: July 9, 1991
    Assignee: Baylor Research Foundation
    Inventors: Millard M. Judy, James L. Matthews, Joseph T. Newman, Franklin Sogandares-Bernal
  • Patent number: 5029922
    Abstract: A removable handle for use in handling semi-conductor wafer processing cassettes includes a horizontally extending front coupling bar with coupling channels on each end for engaging flanges on the cassette. A handle includes a body portion which is mountable to and extends transversely from the coupling bar. A grip portion extends angularly from the body and is furnished with contoured finger portions. The grip includes a finger trigger for actuating a spring biased resilient plunger mechanism to engage the sidewall of the cassette and secure it to the coupling bar. The grip also includes a thumb latch for releasing the plunger mechanism, in resonse to the spring bias, and allowing the handle to be disengaged from the cassette.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: July 9, 1991
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Antonio DiNapoli, Gerald L. Goff
  • Patent number: 5024655
    Abstract: A dual lumen catheter member having distal and proximal end portions is configured to be longitudinally passed entirely through a hollow needle member insertable into the epidural space of a patient, and is provided on its distal end with an inflatable balloon element. With the needle member inserted, the distal catheter end is passed therethrough into the epidural space. The needle member is then withdrawn and removed from the catheter member past its proximal end. The proximal end of the catheter member is then removably inserted into an inlet fitting and frictionally locked therein. The installed inlet fitting defines sealingly separated outward extensions of the lumen inlets which are spaced longitudinally apart on the proximal catheter end portion. Pressurized fluid is injected into one of these inlet extensions to inflate the balloon element, and an anesthetic fluid is flowed into the other extension, and through its associated lumen, into the epidural space through the distal catheter end therein.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: June 18, 1991
    Inventors: Andrew B. Freeman, H. A. Tillmann Hein
  • Patent number: 5024032
    Abstract: A post tensioning anchor assembly comprising a tapered tubular member, cable cap and anchoring plate assembly. The anchoring plate is constructed for live end or dead end securement in the sidewall of a concrete formation for post tensioning of a sheathed cable. The plate has inside and outside faces constructed for matingly receiving over the cable either the tubular member cap or both. In this manner the post tensioning plate assembly can be used for both outside and intermediate post tensioning constructions. In the intermediate configuration, tubular members are secured both to the inside and the outside faces of the plate with the tensioning cable extending therethrough.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: June 18, 1991
    Inventor: Alan Rodriguez
  • Patent number: 5024138
    Abstract: An aircraft armament mounting system includes an elongated support plank member which is insertable transversely through the aircraft cabin area so that a central portion of the plank is disposed within the cabin area and its opposite end portions project outwardly from the aircraft. This central portion is anchored to the aircraft, and outer tip portions of the plank are pivotable between extended and inwardly folded positions. A pair of rocket launchers are mounted on downwardly projecting support structures secured to the outer ends of the plank tip portions, the support structure having integral adjustment mechanisms which permit vertical and horizontal adjustment of the rocket launcher firing axes. Supported on the underside of the plank end portions, inwardly of the foldable tip sections, are a pair of machine gun pods supported on specially designed shock absorbing gun mounts which carry a pair of machine guns provided with electrically driven charging assemblies.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: June 18, 1991
    Inventors: Paul H. Sanderson, Richard C. Serkland
  • Patent number: D318923
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: August 6, 1991
    Inventor: B. Carnie Marsh