Patents Represented by Law Firm Webb, Burden, Ziesenheim & Webb
  • Patent number: 5332247
    Abstract: An articulated joint for pivotally connecting adjacent sections of a vehicle. The joint includes a first slewing ring and a second slewing ring and each slewing ring has an outer member connected to an inner member. A bearing race is located between the outer member and the inner member to permit relative rotation of the members. The outer member of each slewing ring is constructed for connection to one section of a vehicle and the inner member of each slewing ring is constructed for connection to another section of the vehicle. Location sleeves are located radially inwardly of the inner members of the slewing rings and a shim is located between the ends of the location sleeves.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: July 26, 1994
    Assignee: Dosco Overseas Engineering Ltd.
    Inventor: Michael Etherington
  • Patent number: 5327735
    Abstract: The present invention relates to a refrigerant recycling and reclaiming system capable of removing refrigerant from a refrigeration machine for filtering and reclaiming of the refrigerant, whereupon the refrigerant can be either stored or reintroduced into the refrigeration machine and reused rather than being lost to the atmosphere or otherwise wasted. The recycling and reclaiming system of the present invention is characterized in that it includes an evaporator and/or refrigerant storage tank which are contained within a thermal barrier, typically a water bath, which permits the system to operate at lower temperatures and pressures than systems heretofore known in the art. Lower temperatures and pressures in turn require a much smaller horsepower compressor unit resulting in a decrease in the physical size and operating cost of the system.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: July 12, 1994
    Assignee: The Youngstown Research & Development Co.
    Inventor: Bobby L. Hatton
  • Patent number: 5327245
    Abstract: Disclosed is a method and apparatus for combining a plurality of television signal channels which are immediately adjacent in frequency to each other. A main transmission line transmits a plurality of television signals therethrough in a predetermined direction of transmission. The visual signal of a first of the television channels is inserted into the main transmission line in the predetermined direction. The visual signal of a second, immediately adjacent television channel is then inserted into the main transmission line in the predetermined direction, using a frequency band otherwise occupied by the aural signal of the first television channel as a guard band to separate the combined visual signals of the first and second television channels.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: July 5, 1994
    Assignee: Information Transmission Systems Corp.
    Inventors: Robert M. Unetich, Jeffrey M. Lynn
  • Patent number: 5318279
    Abstract: The invention concerns a composite material for a receptacle for transferring molten metal.It is comprised of a refractory material and a frame chosen in the group comprised of mineral refractory wires and metallic wires.Application to the foundry industry.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: June 7, 1994
    Assignee: Vesuvius Crucible Company
    Inventors: Gilbert Brandy, Jean-Claude Compagnon, Jean-Marie Vignot
  • Patent number: 5313673
    Abstract: A sensor for a flushing device having an electric solenoid operated flush valve. The sensor includes a control box, a first radiation emitting source mounted in the control box, a radiation detector adapted to detect reflected radiation from the first radiation emitting source mounted in the control box, a lens cover attached to the control box and adapted to permit radiation to pass therethrough and a control circuit contained within the control box responsive to the sensing unit and connected to the solenoid for initiating operation of the flush valve. The control circuit includes a magnetically activated device for bypassing the sensing unit to initiate operation of the flush valve and deactivate the flush valve for a fixed period of time. Also disclosed is a method of operating the sensor.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: May 24, 1994
    Assignee: Zurn Industries, Inc.
    Inventors: Robert E. Saadi, Christopher J. Ball, Makoto Kodaira
  • Patent number: 5314054
    Abstract: An apparatus for buffering or temporarily storing articles is disclosed. The apparatus includes a feed for the articles with at least one endless flexible member moving past the feed. Doglike elements which engage the articles and between which the articles are transported are movable together with the flexible member. One or more guide members for guiding the flexible member during changes of direction are provided with a discharge for discharging an article from between two doglike elements. A mechanism for diminishing the impact to the articles is provided wherein the guide members are movable relative to the feed and/or discharge.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: May 24, 1994
    Assignee: EBM Techniek B.V.
    Inventor: Gerardus J. C. van Laar
  • Patent number: 5313062
    Abstract: A method of automatically and accurately accomplishing focusing and astigmatism correction in an electron beam apparatus such as a scanning electron microscope. The electron beam is raster scanned to scan a specimen in two dimensions. If the obtained signal intensity distribution curve has only one peak, the peak position P2 of a curve obtained by raster scanning the beam vertically is detected. The peak position P1 of a curve obtained by raster scanning the beam horizontally is detected. An intermediate position P0 is calculated, using the formulaP0=(P1+P2)/2The intensity of excitation of the objective lens is adjusted to this intermediate position P0. In this way, if two peaks cannot be obtained by a horizontal raster scan of the beam, depending on the state of the surface of the specimen, it is possible to accurately bring the beam into focus at the position of the circle of least confusion. After this focusing operation, an automatic astigmatism correction is made.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: May 17, 1994
    Assignee: JEOL Ltd.
    Inventor: Atsushi Yamada
  • Patent number: 5309658
    Abstract: An element is disclosed for displaying one or more portions of characters or shapes, wherein the display element comprises partially transparent plastic in which fluorescent colorant is incorporated. Preferably the inside of one head end is provided with a profiled form.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: May 10, 1994
    Inventors: Henri Cohen, Gertjan R. Willemsen, Remco S. Schoppen
  • Patent number: 5309216
    Abstract: A method of determining particle size distributions in the range of from about 0.03 to 10 .mu.m by measuring the spectral light extinction during sedimentation of particles suspended in a transparent liquid in a centrifugal field. The light transmissions through the suspension of light of different wavelengths are measured in response to the settling time and the particle size distribution is determined from the light transmissions measured. No knowledge of the optical data of the particles is needed. The integral equation to be solved for that purpose is given. A wide particle size range can be covered precisely within short times of analysis.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: May 3, 1994
    Inventor: Reiner Weichert
  • Patent number: 5307612
    Abstract: A lawn mower for use in a walking mode and a riding mode, having a chassis frame, an engine mounted on a rearward position of the chassis frame, front wheels, driven rear wheels, transmissions for transmitting drive from the engine to the rear wheels after varying speed of the drive, a grass cutting unit suspended from the chassis frame, a driver's seat mounted on the chassis frame, and a handle post supporting control levers for controlling the transmissions. The handle post is pivotable between a first position for the walking mode in which the control levers are disposed rearwardly of the chassis frame, and a second position for the riding mode in which the control levers are disposed adjacent the driver's seat. The handle post includes a vertical post portion extending laterally of the lawn mower, and a horizontal post portion curved from the vertical post portion to extend transversely of the lawn mower. The control levers are provided on the horizontal post portion.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: May 3, 1994
    Assignee: Kubota Corporation
    Inventors: Yoshio Tomiyama, Junichi Kitamura
  • Patent number: 5305769
    Abstract: A power spray washing machine includes an enclosed wash cabinet positioned above a wash holding tank and a rinse holding tank. Openings are provided through a floor of the wash cabinet directly into the wash and rinse tanks, respectively. Vertical plug valves are associated with each opening to open and close the openings and control the flow of fluids therethrough. Each valve includes a first valve head moveable between a closed position in direct contact with and closing the opening and an open position out of contact with and uncovering the opening. The valve heads retain no fluid between the floor of the wash cabinet and the holding tanks when the valve head is in the closed position. By this arrangement, cross contamination of solutions between the wash and rinse holding tanks is minimized or eliminated.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: April 26, 1994
    Assignee: American Metal Wash, Inc.
    Inventor: Robert S. Jung
  • Patent number: 5306251
    Abstract: A hand held device for injecting a fluid (such as a vaccine) or an object (such as a transponder) beneath the skin of an animal, the device comprising a mounting (2) for receiving a conventional hypodermic syringe (5,6,7), a weight (7) (which may be part of the plunger fitted within the syringe) for acting on the plunger (7) of the syringe and a slapping plate (3), being arranged so that when the device is swung into contact with an animal so the needle (6) of the hypodermic syringe pierces the animal's skin and the device is brought to a sudden halt as the plate (3) slaps against the animal, the momentum of the weight (7) acts to push the plunger (7) into the syringe and so propels the fluid or object held therein into the animal.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: April 26, 1994
    Inventor: Nicholas J. Alexander
  • Patent number: 5304034
    Abstract: The disclosure discloses a method for constructing a pumping installation which includes a prefabricated concrete pump house and a prefabricated concrete suction box. The pump house and suction box are then placed on and coupled to a workfloor manufactured at the building site. A pump is then installed in the pump house.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: April 19, 1994
    Assignee: Stork Pompen B.V.
    Inventor: Matheus A. M. Bouwman
  • Patent number: 5304801
    Abstract: An electron microscope is disclosed which permits one to observe a high-contrast TEM image at a high-resolution. The electron microscope according to this invention comprises an objective lens OL which forms a first diffraction image P.sub.1 at the back focal plane of the objective lens OL; a selected area diaphragm 12 located behind the objective lens OL; an objective minilens ML which is located between the objective lens OL and the selected area diaphragm 12, the minilens ML is excited in such a way that the minilens ML produces a second diffraction image P.sub.2 at the position of the selected area diaphragm 12, while the object plane of the minilens being located at the position of the first diffraction image P.sub.1 ; an intermediate lens IL.sub.1 located behind said selected area diaphragm 12 and excited in such a way that the object plane of the intermediate lens IL.sub.1 is located at the position of a TEM image produced by both said objective lens OL and minilens ML; and a lens system (IL.sub.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: April 19, 1994
    Assignee: JEOL Ltd.
    Inventor: Yoshihiro Arai
  • Patent number: 5302004
    Abstract: A method for removing asbestos containing material from an area of a building by creating a containment area substantially surrounding the area of the building where the asbestos containing material is located. Removing and compressing compressible asbestos containing material within the containment area and cutting rigid asbestos containing material into pieces within the containment area. Packaging the compressed and cut asbestos containing material for removal from the containment area. Demolishing block walls within the containment area and grinding pieces of the walls into particles for removal from the containment area. Scraping adhering asbestos containing material from surfaces within the containment area and encapsulating the surfaces from which asbestos containing material has been removed with a lock-down agent.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: April 12, 1994
    Assignee: QSI International, Inc.
    Inventor: David B. Docherty
  • Patent number: 5301787
    Abstract: An articulated shuttlecar having two end sections and at least one center section with spaced longitudinal edges. A vertical pivot connecting the center section to one end of each end section. Each section has a pair of driven wheels mounted on an axis located approximately at its longitudinal center. A continuous flexible conveyor extends throughout the length of the sections of the shuttlecar to transport loose mined material from one end of the shuttlecar to the other end of the shuttlecar, and a continuous flexible retaining wall extends upwardly along each edge of all of the sections of the elongated shuttlecar to maintain loose mined material on the continuous flexible conveyor.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: April 12, 1994
    Assignee: Dosco Overseas Engineering Ltd.
    Inventors: Michael Etherington, Michael R. Long
  • Patent number: 5302071
    Abstract: Fugitive dust generated by a bottom dumping railroad hopper car is captured by a dust containment system. The dust containment system includes an open railroad track segment for supporting the car above a hopper pit defined by enclosed end walls, an interconnecting rear sidewall and a partially open front side. A building structure encloses the track segment and hopper pit and includes roof mounted ventilators for emitting fresh air to the interior thereof. A backhoe device is positioned above the car to assist in discharging material. Air passageways are formed on opposite sides of the track segment with motorized dampers positioned therein. Dust collector units are positioned adjacent to the front side of the hopper pit. The fans of the dust collectors induce a draft from the roof ventilators downwardly along the sides of the rail car, through the air passageways to the hopper pit.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: April 12, 1994
    Assignee: Svedala Industries, Inc.
    Inventor: Willard Binzen
  • Patent number: 5302027
    Abstract: A sight tube for an optical temperature measuring device suitable for immersion in molten steel comprises an elongated, cylindrical body having an optical sighting bore therein extending axially from an open end of the body to a closed end. The body is a carbon bonded alumina graphite material made from a mix consisting of, in weight percent, between about 5-45% graphite; between about 20-85% alumina; 0 to 15% anti-oxidant; and between about 3-20% phenolic resin binder. The mixture is isostatically pressed in the desired body shape and fired at a temperature in excess of C. in a reducing atmosphere. The graphite is preferably a high purity flake graphite, greater than 99% pure. The alumina is preferably "brown" fused alumina grain having minimum amounts of volatile elements: sodium (Na), potassium (K), boron (B), phosphorous (P), sulphur (S) and chlorine (Cl). The sodium content, present as Na.sub.2 O in the alumina source is less than 0.05% by weight, and preferably no more than 0.02% by weight.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: April 12, 1994
    Assignee: Vesuvius Crucible Company
    Inventor: Han K. Park
  • Patent number: D346078
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: April 19, 1994
    Assignee: Bush Industries, Inc.
    Inventors: Carl H. Schulman, Charles D. Anacker
  • Patent number: PP8723
    Abstract: A new variety of Limonium is tall with upright stems. The flower color is a bluish-purple. The flowers are long-lasting and the plant is easy to grow. Up to 8 stems flowers can be cut in the first year and 10-12 flower stems in the second year.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: May 10, 1994
    Assignee: Dai-Ichi Engei Plantech Co., Ltd.
    Inventors: Kazunori Sato, Kazuharu Koreeda, Nobuaki Takanashi