Patents Examined by Bruce A. Reynolds
  • Patent number: 5442160
    Abstract: Apparatus for heating a fiber using microwave energy. The apparatus has a source of microwave energy feeding and applicator. The applicator is configured to concentrate the microwave energy on a chamber holding a fiber. Fibers made or coated using chemical vapor deposition in the apparatus are also disclosed.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: August 15, 1995
    Assignee: Avco Corporation
    Inventors: Harold D. Kimrey, Jr., William B. Snyder, Jr., Richard C. Krutenat
  • Patent number: 5440447
    Abstract: An electronic feed-through system that is adapted for use in situations in which the feed-through is bonded to a container or the like by a process that subjects the feed-through system to heating. The feed-through system includes an electrically conductive structure adapted to be attached to a second structure at a first location on the conductive structure. The conductive structure has an electrically conducting member connected to the first location. A portion of the conductive structure is subjected to heat during said attachment. The feed-through system also includes an electronic component such as a feed-through capacitor. The electronic component requires electrical connection to the conducting member and placement in proximate spaced relation to the conducting member. An electrically conducting thermally resistant bridge is used to connect the electronic component to the conducting member and maintain the component in the spaced relationship with the member.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: August 8, 1995
    Assignee: The Morgan Crucible Company, plc
    Inventors: Thomas W. Shipman, David J. Bealka, Timothy J. Brown
  • Patent number: 5436795
    Abstract: A monolithic capacitive pressure transducer (12, 12') is made by separately forming under pressure a diaphragm (22, 22') and a base (24, 24') having a recess (14) in the top surface using ceramic powder coated with an organic binder. Metal layers are deposited on the two pieces and the pieces are then joined together to form a single unit. A spacer (36) may be inserted in the recess to ensure that a predetermined gap is maintained between the two parts during the joining operation. The parts are then heated to allow the binder organics, as well as the spacer organics if a spacer is employed, to be vaporized and/or decomposed and removed through the open pores of the diaphragm and base and then sintered to change the parts into a monolithic body and to convert the metallized layer into a conductive layer bonded to the ceramic.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: July 25, 1995
    Assignee: Texas Instruments Incorporated
    Inventors: Robert P. Bishop, Paul L. Hainey
  • Patent number: 5434390
    Abstract: An oven for cooking by hot air impingement includes a housing defining a cooking chamber adapted to receive a food product for cooking, a hot air plenum configured and dimensioned to hold a volume of air and a conduit for providing gaseous communication therebetween. Associated with the plenum is a thermal energy source for heating gas disposed in the plenum.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: July 18, 1995
    Assignee: TurboChef, Inc.
    Inventors: Philip R. McKee, Earl R. Winkelmann
  • Patent number: 5434742
    Abstract: A semiconductor integrated circuit apparatus according to the present invention has a capacitor formed in such a manner that a ferroelectric thin film is formed after a MOS transistor has been formed on a substrate thereof, a ferroelectric thin film made of, for example, PbZrTiO.sub.3 or SrTiO.sub.3 or the like is formed into a columnar shape to form electrodes positioned in direct contact with the side wall portions of said columnar ferroelectric thin film, and the top portion is removed.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: July 18, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Katsuaki Saito, Michio Ohue, Takuya Fukuda, JaiHo Choi, Yukinobu Miyamoto
  • Patent number: 5434384
    Abstract: A windshield having an upper vision area with a coating and a lower heating area aligned with a wiper blade storage area. When the coating is electroconductive, first and second bus bars are provided to selectively connect the coating to the terminals of a power source to provide a windshield heating circuit for defogging or defrosting its vision area. One of the bus bars is also connected to a heating element along a lower area of the windshield that faces a storage area for windshield wipers. The heating element is selectively connected to a different terminal of the power source from the terminal connected to one of the bus bars to cooperate with one of the bus bars and the power source to provide a storage area heating circuit. The windshield heating circuit and the storage area heating circuit may be operated independently, either separately or simultaneously, from a common electric power source.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: July 18, 1995
    Assignee: PPG Industries, Inc.
    Inventor: Harry S. Koontz
  • Patent number: 5434393
    Abstract: Microwave cookware of flexible, transparent material displaying an expandable bottom and two opposing walls, one wall containing an aperture, the other opposing wall displaying an extension, the objective being to manually pull the extension through the aperture rendering the bag closed and, vented, leaving the extension as a handling vehicle.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: July 18, 1995
    Inventor: Maryann Jurkofsky
  • Patent number: 5432671
    Abstract: A device forming a touch screen of the capacitive type intended in particular to cower a visualizing screen of a visualizing display unit such as a cathode ray tube. A group of electrically conducting transparent electrodes are arranged to be insulated from each other, not exposed to the outside and are connected to an electronic circuit for detecting capacitive variation. A second group of electrically conducting transparent electrodes insulated from each other are arranged to form front keys and are separated from the first group by a transparent dielectric material. The electrodes of the second group have substantially the same dimensions as the electrodes of the first group and are superimposed respectively upon the electrodes of the first group while facing one another so as to form pairs of capacitors. The effective capacity of each pair of capacitors varies when a body forming a mass reference frame is applied upon a front key.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: July 11, 1995
    Assignee: Mors Composants
    Inventor: Jean-Pierre Allavena
  • Patent number: 5432319
    Abstract: A high temperature furnace for heat treatment of various products, and for sintering. One of the uses is for preparing dental products such as dental crowns, bridges, implants and the like. The main component of the furnace is a cup-shaped quartz vessel, with a curved roof section, and which has a wide flange at its open end. There is provided a heating coil, applied to the vessel, and heat insulating means and heat measuring means indicating the temperature inside the vessel. There is provided a tube leading to the outside which can be used for establishing a vacuum in the vessel or for providing in the vessel or for providing in the vessel an atmosphere of any desired gas or gas mixture. There is provided a base through which there can be raised and lowered a worktable. The flange of the vessel rests on O-rings which provide a hermetic seal, and which are not subjected to an excessive temperature due to the width to the width of the flange of the vessel.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: July 11, 1995
    Inventor: Baruch Indig
  • Patent number: 5432672
    Abstract: A solid electrolytic capacitor of the type having a built-in fuse is disclosed in which a connecting portion between the fuse and a capacitor element is made thin and securely formed to accommodate the capacitor element to be increased in capacitance without changing the outer size of a resin package. The solid electrolytic capacitor including a capacitor element, an internal anode lead extending from one surface of the capacitor element, other surfaces of the capacitor element serving as a cathode terminal wall, an external anode lead connected to the internal anode lead, an external cathode lead connected to the cathode terminal wall through a fuse, and a resin package encapsulating the capacitor element, the fuse and respective connecting portions of the external anode lead and the external cathode lead.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: July 11, 1995
    Assignee: Rohm Co., Ltd.
    Inventors: Chojiro Kuriyama, Yasuo Kanetake
  • Patent number: 5430757
    Abstract: A method is disclosed for the semi-continuous melting of ceramic material by means of inductive melting in high-frequency and medium-frequency induction melting furnaces whose melting coil surrounds a sintering crust crucible and contains a run-out channel. In tile method, melt is periodically run out and material to be melted is supplied to the crucible so as to replace the material removed preferably so as to maintain a constant level. An intensively cooled channel is used as a run-out device. For the melt broaching, the melt nose is grasped from below by way of an automatically controllable broaching lance of a broaching device and raised. The broaching lance is then advanced between the bottom of the channel and the solidified melt until the sintering crust is pierced. The method permits a reliable and economic management of the process and the maintenance of the quality of the melted products.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: July 4, 1995
    Assignee: Degussa Aktiengesellschaft
    Inventors: Dieter Binder, Peter Kleinschmit, Gerhard Birtigh, Klaus Zetzmann
  • Patent number: 5430605
    Abstract: A composite multilayer capacitive device (10) has a series resistance. A capacitor body (14) is defined by a plurality of interleaved first and second ceramic layers (21, 23) having respective first and second electrode patterns (22, 24) which establish a selectable capacitance. In a first embodiment, the first and second electrode patterns (22, 24) are generally rectangular with protruding interconnect elements (27, 28). In a second embodiment, the first and second electrode patterns (62, 64) are similar to those in the first embodiment, except that the second electrode pattern (64) has no interconnect element and is elongated in order to directly contact the second termination (18). In a third embodiment, the first and second electrode patterns (82, 84) are generally rectangular with first, second, and third protruding interconnect elements (87a-87c, 88a-88c).
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: July 4, 1995
    Assignee: Murata Erie North America, Inc.
    Inventors: Joel B. deNeuf, Bruce E. Helms
  • Patent number: 5430606
    Abstract: A double layer capacitor with electrodes produced from a carbonaceous material having a large capacitance obtained by heat-treating an activated carbon precursor at a temperature below 700.degree. C., preferably from 400.degree. to 500.degree. C., in an alkali metal hydroxide bath. In particular, its capacitance per unit volume is several times larger, in some cases 7 or more times larger, as compared with conventional activated carbons for capacitors.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: July 4, 1995
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Kiyoshi Adachi, Takeo Kurosaki, Yoshinori Iwashima
  • Patent number: 5430758
    Abstract: An induction crucible furnace has a furnace axis and a furnace coil generating magnetic flux. A magnetic yoke for the furnace includes a barlike lamination packet for guiding the magnetic flux. The lamination packet has a middle region and two lateral regions being adjacent the middle region and having borders facing away from the middle region. The lamination packet has a number of individual single laminations having edges and being electrically insulated from one another. The lamination packet has a main surface facing the furnace coil with a shape being sectioned into three parts for positioning the middle region relatively close to the furnace coil and defining a distance between the edges of the individual laminations and the furnace coil being increased in the two lateral regions toward the borders. Two peripheral regions face toward the furnace coil and have acute-angled, lamination-free sectors being parallel to the furnace axis.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: July 4, 1995
    Assignee: ABB Patent GmbH
    Inventor: Horst Gillhaus
  • Patent number: 5428500
    Abstract: A solid electrolytic capacitor includes an anode, a dielectric layer, a solid electrolyte layer, and a cathode electrode. The solid electrolyte layer consists of a conductive polymer compound obtained by doping a dopant in one of a copolymer and a mixture of polypyrrole or a derivative thereof, the polypyrrole having a repetition unit represented by a formula ##STR1## wherein each of R.sub.1 to R.sub.3 represents an alkyl group or a hydrogen atom, and polyaniline or a derivative thereof, the polyaniline having a repetition unit represented by a formula ##STR2## wherein each of R.sub.4 to R.sub.7 represents an alkyl group or a hydrogen atom.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: June 27, 1995
    Assignee: NEC Corporation
    Inventors: Toshihiko Nishiyama, Koji Sakata, Takashi Fukaumi, Atsushi Kobayashi, Satoshi Arai
  • Patent number: 5428501
    Abstract: A solid electrolyte capacitor cell includes a cathode contact layer, a cathode layer of carbon and RbAg.sub.4 I.sub.5 surrounded by a peripheral portion of the cathode contact layer, a larger electrolyte layer of RbAg.sub.4 I.sub.5 attached to the cathode layer, and an anode layer of carbon and RbAg.sub.4 I.sub.5, an anode contact layer, and an insulative, annular silver barrier extending between and contacting peripheral portions of the cathode contact layer, the anode contact layer, and edges of the cathode, electrolyte, and anode layers to prevent silver migration. A composite capacitor includes a plurality of the series-connected solid electrolyte cells stacked in an elastic housing that maintains isostatic internal pressure throughout the electrolyte layers of all of the cells, making them resistant to formation of minute cracks in all of the electrolyte layers. This prevents deposition of silver in such cracks during charge/discharge cycling and therefore prevents cathode-to-anode shorts.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: June 27, 1995
    Assignee: Marine Mechanical Corporation
    Inventor: John F. Bruder
  • Patent number: 5428209
    Abstract: A piece of microwave-active tape which is odor-free and physiologically inert can be adhered to a food package and remains strongly adhered during cooking at temperatures of at least 200.degree. C. The tape has layers of microwave-active material and a pressure-sensitive adhesive which is a polymeric .alpha.-olefin that has been cured to afford a "Peel Value" of at least 5 N/dm and a "Shrink Back" at 220.degree. C. of less than 5%. The tape can have a flexible backing such as a low-adhesion carrier web which can be stripped off from a piece of the tape that has been applied to a microwave food package, or when the backing is heat-resistant, it can be left in place.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: June 27, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gaddam N. Babu, Susan S. Christopher, Pierre H. LePere, James R. Peterson
  • Patent number: 5426663
    Abstract: A glass melting tank provides heat in a melting chamber 11 from pairs of electrodes 26, 27 and 28. A three-phase electrical power supply 34 provides power to the electrode pairs and the voltage supplied for the different phase is independently controlled by a power control 33.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: June 20, 1995
    Assignee: Pilkington plc
    Inventor: Stanley Lythgoe
  • Patent number: 5426664
    Abstract: A cooling panel for use in drawing off excess heat from and protecting the side walls and roof of a furnace such as an electric arc furnace, the cooling panel being preferably made entirely out of oxygen-free pure copper. The cooling panel is a wall having a series of strips welded on one side, the strips having recesses on the side adjacent the wall to form channels between the strips and wall for circulating a cooling fluid therethrough. The cooling panel is also provided with inlet and outlet manifolds for supplying and removing the cooling fluid to the passages of the cooling panel. The strips and the manifolds are preferably made using an extruding process and assembled using a tungsten inert gas welding process.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: June 20, 1995
    Assignee: Nu-Core, Inc.
    Inventor: Robert C. Grove
  • Patent number: 5426561
    Abstract: Ultracapacitor and supercapacitor designs wherein two discrete metal film current collectors of the prior art, one for each of the cathode and anode, are replaced by a single thin polymer film. The polymer film is typically several microns thick and metallized on both sides. The thickness of the metallization is varied from several hundred to several thousand .ANG.ngstroms depending upon the particular application. This metallization serves as the positive and negative electrodes (current collectors) which are spatially separated by the polymer dielectric film. The resulting reduction of volume increases the volumetric energy density and the reduction of mass increases the gravimetric energy density. The electrolyte solvent/salt system can be selected to provide useful individual cell voltages as high as 5 volts. The voltage is limited only by the electrolytic stability of the solvent and salt.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: June 20, 1995
    Assignee: The United States of America as represented by the United States National Aeronautics and Space Administration
    Inventors: Shiao-Ping S. Yen, Carol R. Lewis