Patents Examined by Henry A. Bennet
  • Patent number: 5526579
    Abstract: The present invention relates to a dryer section of a machine for the production of fibrous web, such as a paper web. The dryer section comprises at least one dryer group having at least one drying cylinder and an endless porous support belt that guides the web around each cylinder. This is followed by a reversing roll being formed as a suction roll. With the web being supported by said porous support belt the web directly contacts said reversing roll. A distance of at least 150 mm is provided between the cylinder and the reversing roll. A sealing strip extends transversely over and close to the inner side of the endless porous belt in the region where web and belt are traveling off the cylinder. For deflecting the air boundary layer which arrives together with the belt, a sealing support beam also extends transversely over the inner side of the belt and supports the sealing strip.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: June 18, 1996
    Assignee: J.M. Voith GmbH
    Inventors: Werner Kade, Wilfried Kraft, Wolfgang Mayer, Gerhard Kotitschke
  • Patent number: 5524356
    Abstract: The present invention provides apparatus for low-cost extraction of oil residues from oil filters. The apparatus of the invention has a mounting structure or plate to which a number of oil filters can be strapped. Over 95% of the oil in each filter can be drained therefrom under the influence of gravitational forces. Oil draining from the oil filters is allowed to gather in a pan, bucket, container or well located below the mounting plate. Connected to the mounting structure is a mechanical or electrical oscillator for imparting a vibratory oscillation to the mounting structure and, hence, to the mounted oil filters. The weak surface tension and molecular forces between the residual oil molecules and the paper filter materials will be overcome by the vibration, and the residual oil will run off.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: June 11, 1996
    Inventor: George H. Lutz
  • Patent number: 5524453
    Abstract: A novel simple, reliable and thermally efficient apparatus for incorporating thermal energy storage in domestic-sized air-conditioning systems is disclosed. This thermal energy storage apparatus for chilled water air-conditioning systems incorporates a chilled-water (or other chilled liquid) loop with two previously patented apparatus.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: June 11, 1996
    Inventor: Timothy W. James
  • Patent number: 5525057
    Abstract: A forced cooling apparatus for a heat treatment apparatus comprising a heat treatment furnace having a process tube with one end open at an furnace opening and another end closed at an furnace top portion; and a heater portion which covers the process tube, and wherein cooling of the heat treatment furnace is performed by forced cooling by flowing air into a gap formed between the heater portion and the process tube and which extends to the furnace top portion.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: June 11, 1996
    Assignee: Tokyo Electron Sagami Kabushiki Kaisha
    Inventor: Osamu Monoe
  • Patent number: 5522161
    Abstract: In the case of an arrangement for the continuous heat setting of yarns, which are guided by means of transport belts into, and then out of, a heat setting chamber using superheated steam, at least one central mast is provided which is equipped with several circulating transport belts, arranged in polygonal form when viewed in cross section. At least one yarn is wound around the central mast and the transport belts in controlled loops. The transport belts are themselves subdivided into circulating belt sections, which are arranged consecutively at transfer points, the transfer points being arranged directly upstream and/or downstream of the heat setting chamber.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: June 4, 1996
    Assignee: Micheal Horauf Maschinenfabrik GmbH & Co. KG
    Inventor: Gerhard Vetter
  • Patent number: 5522235
    Abstract: The invention concerns a reversible rotary compressor which can compress refrigerant in either of the forward and reverse directions, without providing a valve mechanism in a closed container. In a reversible rotary compressor including a cylinder, a rolling piston, and a slide vane, two inlet/outlet ports are formed in a space between the outer surface of the rolling piston and the inner surface of the cylinder in a state that the two inlet/outlet ports are disposed on both sides of the slide vane. The two inlet/outlet ports are closed by the rolling piston when the rolling piston is positioned at the top dead center and fully opened when the rolling piston is positioned at the bottom dead center. Two refrigerant pipes, coupled with the inlet/outlet ports, are provided in the side wall of the cylinder.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: June 4, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Fumio Matsuoka, Kisuke Yamazaki, Tomofumi Tezuka, Tetsuya Mochizuki, Yoshihiro Tanabe
  • Patent number: 5520014
    Abstract: A freezer box (1) comprises a first heat exchange wall (2) which defines a main hollow interior region (7) for ice cream or other liquid material to be cooled, chilled or frozen. A jacket (10) extends around the first heat exchange wall (2) to form a first secondary hollow interior region (12) for brine (13) which is frozen for freezing the ice cream. A lid (30) which comprises a secon O ##SPC1## heat exchange wall (32) having a cylindrical portion (46) extending into the main hollow interior region (7) closes the freezer box (1). Brine (39) is also provided in a second secondary hollow interior region (38) in the lid (30) for freezing the ice cream. The dimensions of the first and second heat exchange walls (2) and (32) are such that the maximum distance between any location in the main hollow interior region (7) its nearest heat exchange wall (2) or (32) does not exceed 13 mm to promote rapid freezing of the ice cream.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: May 28, 1996
    Inventor: Michael T. Laugier
  • Patent number: 5519945
    Abstract: A method and apparatus for cleaning the surface of a backing roll in a coater or a calender roll. The roll is cleaned by injecting steam from a steam injection chamber against the roll surface at a 15.degree. angle counter to the rotational direction of the roll. Steam impinging on the surface performs effective removal of accumulated dirt and the detached dirt is carried away on the web without a deleterious effect on the quality of the web. Steam injected against the roll is vacuumed away from the roll surface via a suction chamber, whereby the cleaning steam is prevented from escaping to the surroundings.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: May 28, 1996
    Assignee: Valmet Corporation
    Inventors: Vesa Ahvenniemi, Teuvo Lappalainen
  • Patent number: 5517830
    Abstract: The capacity control range of an interior unit of a multiple type absorption air conditioning system is increased, and turning on and off of cooling/heating and switch over between the cooling and heating can be readily and safely performed. The capacity control range is increased by reserving a liquid refrigerant in an absorption cool/warm water unit. An interior unit is connected to the absorption cool/warm water unit by a communication device. The operation of the cool/warm water unit caused by turning on and off the system and switch over between cooling and heating are automatically controlled by an operation control device. Consequently, the operation is simplified, and safety is improved.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: May 21, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Tomihisa Ohuchi, Akira Nishiguchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa, Takashi Nakao, Yasuo Koseki, Kyoji Kohno
  • Patent number: 5517930
    Abstract: A method for operating a coal-fired power plant with a dry-firing furnace includes the steps of supplying coal as a fuel and adding a Ca-containing substance to the coal. The amount of Ca-containing substance is adjusted such that such that after addition of a CaO contents of at least 0.3% is obtained. The coal with the added Ca-containing substance is burned in the dry-firing furnace whereby a flue gas is produced. The flue gas is guided through a NO.sub.x removal device, an air preheater, a particle separator, and a desulfurization device.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: May 21, 1996
    Assignee: STEAG Aktiengesellschaft
    Inventors: Hermann Farwick, Albert Riepert
  • Patent number: 5517765
    Abstract: A dryer section apparatus as disclosed for drying a web of paper. The apparatus includes a plurality of dryer groups disposed successively relative to one another, such that the web is progressively dried during movement thereof through the dryer groups. The plurality of groups include a first single-tier group for drying the first side of the web, and a second two-tier group disposed downstream relative to the first group. A second single-tier group is disposed downstream relative to the two-tier group for restraining the web against cross machine directional shrinkage.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: May 21, 1996
    Assignee: Beloit Technologies, Inc.
    Inventor: Brian A. Christansen
  • Patent number: 5516283
    Abstract: An apparatus for processing a plurality of circular wafers including a tubular heater, a boat and a plurality of heat transfer bodies. The tubular heater has a heating space inside and radiates heat within the heating space. The boat is loaded inside the heating space of the tubular heater and holds the wafers in parallel. Heat transfer bodies are located between the wafers.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: May 14, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Martin Schrems
  • Patent number: 5513495
    Abstract: A cooling system (10) which produces ice and then uses the energy stored in the ice to cool a liquid, the cooling system (10) having a supply of liquid in fluid communication with a cooling chamber (12), there being an ice producing means (24) located at least partially within the cooling chamber (12), the ice producing means (24) including a thermoelectric module (26) having a cold-side interface (28) and a hot-side interface (34), the cold-side interface (28) being in direct or indirect communication with liquid in the cooling chamber (12) and the hot-side interface (34) being located externally of the cooling chamber (12) and being connected to a hot-side heat sink (36) for the dissipation of heat generated thereby, and a power supply being connected to the thermoelectric module (26), wherein as heat is absorbed from the liquid by the cold-side interface (28), local freezing of the liquid immediately about the cold-side interface (28) occurs and ice is produced thereon.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: May 7, 1996
    Assignee: Thermotech International Pty Ltd.
    Inventors: Christopher P. West, David B. Neuwen
  • Patent number: 5513583
    Abstract: In a conventional air burner for combustion of pulverized coal having a back and a front, and a coal feeding tube for the pulverized coal extending from the back to the front, an oil igniter connected to the front of the burner, an oil feeding tube connected to the oil igniter, the oil igniter when fired ignites the oil projecting a starter flame at the front of the burner, the starter flame ignites a continuous supply of the pulverized coal conveyed to the starter flame at the front of the burner to create a pulverized coal fueled flame, an improvement wherein a metal tube for conveying a suspension of fine-grained coal in a liquid or aqueous slurry is inserted through the burner and extends from the back to the front and wherein the metal tube is attached to a nozzle oriented and adapted to spray the aqueous slurry into the pulverized coal fueled flame.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: May 7, 1996
    Inventor: Joseph J. Battista
  • Patent number: 5513581
    Abstract: A distributor chute for bulk material, in particular for use in a bell-less blast furnace top charging device, has several inclined transverse plates in the region of its impact zone. The transverse plates create retaining pockets between their inner faces and the surface of the distributor chute. Two adjacent transverse plates limit between the outer face of the first transverse plate and the inner face or the second transverse plate a retaining chamber. If the inclination of the chute is reduced, the bulk material moves from the retaining pocket to the retaining chamber.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: May 7, 1996
    Assignee: Paul Wurth S.A.
    Inventors: Emile Lonardi, Gilbert Bernard, Giovanni Cimenti, Radomir Andonov, Joseph Hollman, Guy Thillen
  • Patent number: 5511388
    Abstract: A method and apparatus for distilling water in combination with a home use refrigerator (11) includes a water source (29) which feeds water into a preheater (23) in which the water is passed by a portion of the condenser coil (22) in heat exchange relationship. The water exiting the preheater (23) moves to a solenoid valve (31) which controls the flow of water into a boiler (32). Heated by a hot plate (33), water in the boiler (32) generates steam which is condensed in a condenser conduit (36) chilled by the refrigerator (11). The condensed purified water runs into a water collection chamber (34) for storage until either the water dispenser (12) or ice maker (15) requires water, at which time the appropriate valve (39, 41) will open and a pump (38) will pump the water to the appropriate device.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: April 30, 1996
    Inventors: James E. Taylor, Robert J. Alderman, James P. Barrett
  • Patent number: 5509604
    Abstract: This invention relates to a chargeable fan heater capable of operation without external power supply, having a burner for burning fuel to produce hot combustion gas, a sterling engine having a shaft and for producing shaft works by the thermal energy from the hot combustion gas, a fan for discharging the hot combustion gas to spaces to be heated, a combined motor-generator connected to the sterling engine and for supplying shaft works to the shaft in starting of the fan heater and generating electricity by the shaft works of the sterling engine during normal operation of the fan heater after starting, a battery for supplying power to the combined motor-generator and being charged by the electricity generated in the combined motor-generator, and a control box for controlling the supply of power to the electric parts of the fan heater necessary for operation of the fan heater, burning of the burner and, the combined motor-generator to act as a motor in starting and as a generator after starting, of the fan heat
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: April 23, 1996
    Assignee: Goldstar Co., Ltd.
    Inventor: Woo S. Chung
  • Patent number: 5509279
    Abstract: A cooler backpack includes two or more separate storage compartments adjoining a central ice container. One of the compartments may be adapted to store cans or bottles of beverages in a plurality of recesses formed in one side of the ice container. Another of the compartments may be used for food storage and includes an insulated hard shell container having one or more shelves. The storage compartments and ice container fit within a durable insulated backpack. Apertures in the side of the backpack provide separate access to each of the storage compartments.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: April 23, 1996
    Assignee: Blue Leaf Design, Inc.
    Inventors: Douglas M. Brown, Donald J. Erickson, Geoffrey H. Willis
  • Patent number: 5509362
    Abstract: Methods and apparatus are provided for combustion systems wherein fuel may be burned completely with use of air as the oxidant, without the necessity for completely mixing the fuel with the air before, during, or after the combustion process. A bed of readily reducible metal oxide, the reduced form of this metal oxide being readily oxidized, is placed within a combustion system. The air and fuel are contacted with the bed at an elevated temperature, with the metal oxide oxidizing the fuel and being regenerated by the air. In one embodiment, complete combustion of fuel occurs without complete mixing of fuel and air. In other embodiments fuel can be burned with little or no mixing with a the combustion process, or fuel can be burned with little or no mixing with air, before, during, or after the combustion process, thereby avoiding a number of disadvantages of such mixing.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: April 23, 1996
    Assignee: Energy and Environmental Research Corporation
    Inventor: Richard K. Lyon
  • Patent number: 5505059
    Abstract: A heat driven solid adsorbent bed heat pump system and method of operating same in which the refrigerant is used both to heat and cool the beds and to heat or cool the space to be conditioned.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: April 9, 1996
    Assignee: Gas Research Institute
    Inventor: David M. Sanborn