Patents Represented by Law Firm Cushman Darby & Cushman Intellectual Property Group of Pillsbury Madison & Sutro LLP
  • Patent number: 5901570
    Abstract: A refrigerator for improving a cooling efficiency. The refrigerator has a cabinet having a refrigerating chamber, a freezing chamber, and an evaporator chamber which is disposed at a rear portion of the freezing chamber, an evaporators which generates a chilled air and has a helical shape forming a conical space portion therein, a blower assembly coaxially disposed at a rear of the evaporator so as to blow an air towards the evaporator, and a heater installed in the conical space portion of the evaporator so as to remove a frost adhering to the evaporator. The refrigerator can effectively make a heat-exchange between the evaporator and the air so that the cooling efficiency is improved. Since the turbulent air flow is introduced into the freezing chamber, the freezing chamber can be uniformly cooled and since the heater is coaxially disposed in the evaporator, the heater can uniformly heat the evaporator, so the defrosting a frost from the evaporator is effectively carried out.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: May 11, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Jun-Chul Sin
  • Patent number: 5902376
    Abstract: A process for the recovery of mercury from mercury-containing caustic sludge, generated from a mercury cell, chlor-alkali plant, wherein mercury is removed from the caustic sludge by treatment in a hydraulic mineral separator. The process provides a ready method for removal of mercury from caustic sludge which can allow recovery of the mercury for re-use. Alternatively, the process provides a smaller volume of mercury-contaminated material to be treated and/or land-filled.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: May 11, 1999
    Assignee: ICI Canada Inc.
    Inventor: John D. Currie
  • Patent number: 5900998
    Abstract: There is provided an array of M.times.N thin film actuated mirrors for use in an optical projection system comprising an active matrix, an array of M.times.N thin film actuating structures, each of the thin film actuating structures including at least a thin film layer of a motion-inducing material, a pair of electrodes, each of the electrodes being provided on top and bottom of the thin film motion-inducing layer, an array of M.times.N supporting members, each of the supporting members being used for holding each of the actuating structures in place by cantilevering each of the actuating structures and also for electrically connecting each of the actuating structures and the active matrix, and an array of M.times.N mirrors for reflecting light beams, each of the mirrors being placed on top of each of the actuating structures.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: May 4, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Dong-Kuk Kim, Jeong-Beom Ji, Seok-Won Lee
  • Patent number: 5895526
    Abstract: A process for growing a single crystal comprises providing a single crystal substrate acting as a seed crystal above a source material in a container, heating the source material in an inert gas atmosphere in the container to form a sublimed source material, and discharging the sublimed source material from the container through a port above the single crystal substrate, to cause the sublimed source material to flow along and in parallel with a surface of the single crystal substrate, and grow a single crystal on the surface of the single crystal substrate.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: April 20, 1999
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yasuo Kitoh, Masahiko Suzuki, Naohiro Sugiyama
  • Patent number: 5894157
    Abstract: A method for fabricating a MOS transistor having an offset resistance in a channel region controlled by a gate voltage and structure thereof is disclosed. A gate electrode is divided into three adjacent regions of respectively a second conductivity type, first conductivity type and second conductivity type connected laterally to one another on a channel region. A gate control voltage is applied to a central region of the first conductivity type, and a predetermined voltage between maximum and minimum values of the gate control voltage is applied to left and right adjacent regions of the second conductivity type. If a gate turn-on voltage is applied to the central region the gate turn-on voltage is forward biased to the adjacent left and right regions and is therefore also applied to the forwardly biased left and right regions. The effective length of the gate electrode then becomes the total length of the central region and the left and right adjacent regions.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: April 13, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Koo Han, Byung-Hyuk Min
  • Patent number: 5887457
    Abstract: A washing machine having a friction apparatus which can uniformly wash articles to be washed and can improve the washing efficiency. The friction apparatus is installed in openings formed at a side wall of a spin tub. Upper and lower slots are formed at upper and lower portions of the openings. The friction apparatus has a cylinder, a rod which extends through the cylinder, a plurality of blades which are integrally formed with an outer wall of the cylinder, and first and second bushings fixedly inserted into the upper and lower slots. An inner wall of the cylinder is formed with a spiral groove, and the rod is provided at its outer wall with a spiral strip which is engaged with the spiral groove. The friction apparatus fully makes contact with the articles while the washing cycle is being carried out thereby uniformly washing the articles and improving the washing efficiency.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: March 30, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Jeong-Gi Yu
  • Patent number: 5889110
    Abstract: This invention relates to novel salts composed of a cation derived from a peptide containing at least one basic group and an anion derived from a carboxy-terminated polyester, processes for the manufacture of such salts, and the use of such salts in the manufacture of extended release pharmaceutical compositions. The salts of the invention possess a variety of properties which are useful in the formulation of extended release pharmaceutical compositions, whether the salts are in pure form or are in admixture with either an excess of the peptide in its free, unbound form or an excess of the free polyester.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 30, 1999
    Assignee: Zeneca Limited
    Inventor: Francis Gowland Hutchinson
  • Patent number: 5887622
    Abstract: A valve assembly is comprised of a valve plate 35, a discharge valve 34, a backing valve 33, and a stopper 31. A first fixed member 34H of the discharge valve 34 and second fixed member 33H of the backing spring 33 have a first slot 43 and a second slot 42 for receiving a projection 44 formed on the supporting surface 37S, respectively. The stopper 31 comprises a first pressing member 31H which enables the first fixed member 34H of the discharge valve 34 and second fixed member 33H of the backing spring 33 to be pressed in a supporting surface 37S of the accommodating space 37. The embossing portion 36 is pressed by the lower surface of the valve plate 101.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: March 30, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Chi-Young Ahn
  • Patent number: 5882338
    Abstract: A medical syringe comprises a cylindrical barrel 1 having therein a plunger 4 which can be axially driven by a plunger rod 3. The plunger rod 3 passes through an aperture in the centre of a finger grip 2 having two finger grip projections 2b at opposite sides thereof. A data carrier means in the form of an electrically or magnetically operable device 2c is mounted near the end of one of the two finger grip projections 2b, with preferably a device 2c mounted near the end of each finger grip projection 2b. The device 2c carries data relating to the medicament contained or to be contained within the syringe, and can be read by a suitably adapted syringe pump when the syringe is mounted thereon to be driven by the syringe pump.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: March 16, 1999
    Assignee: Zeneca Limited
    Inventor: John Martyn Gray
  • Patent number: 5879757
    Abstract: A method of modifying at least part of the surface of a polymer or polymer matrix composite material including: (i) oxidising at least part of the surface of the polymer or polymer matrix material and (ii) subsequently treating the oxidised surface with an organofunctional coupling agent and/or chelating agent, simultaneously with a static and/or a high frequency alternating physical field.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: March 9, 1999
    Assignee: Commonwealth of Australia Scientific And Research Organisation
    Inventors: Wojceich S. Gutowski, Dong Y Wu, Sheng Li
  • Patent number: 5880130
    Abstract: The invention concerns pyrimidine derivatives of formula wherein m is 1, 2 or 3; each R.sup.1 is independently hydrogen, hydroxy, (un)substituted amino, nitro, halogeno, cyano, carboxy, (un)substituted carbamoyl, ureido, (1-4C) alkoxycarbonyl, (un)substituted (1-4C)alkyl, (un)substituted (1-4C)alkoxy, (1-3C)alkylenedioxy, (1-4C)alkylthio, (1-4C)alkylsulphinyl, (1-4C)alkyl-sulphonyl, (2-4C)alkanoyloxy; n is 1, 2 or 3; and each R.sup.2 is independently hydrogen, hydroxy, halogeno, trifluoromethyl, trifluoromethoxy, amino, nitro, cyano, (1-4C)alkyl, (1-4C)alkoxy, (1-4C)alkylamino, di-?(1-4C)alkyl!amino, (1-4C)alkylthio, (1-4C)alkylsulphinyl, (1-4C)alkylsulphonyl, (2-4C)alkanoylamino, (2-4C)alkanoyl or (1-3C)alkylenedioxy; or a pharmaceutically-acceptable salt thereof; processes for their preparation; pharmaceutical compositions containing them; and the use of the receptor tyrosine kinase inhibitory properties of the compounds in the treatment of cell-proliferation diseases.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: March 9, 1999
    Assignee: Zeneca Limited
    Inventor: Andrew Peter Thomas
  • Patent number: 5874664
    Abstract: Air fuel ratio sensor for use in an exhaust gas purification system for an internal combustion engine. The sensor has an outer and inner cover 12 and 13 for protection of lead wires 16, 18 and 19 to a detecting element 3 and a heater 5 of the sensor, a rubber seal for 2 for obtaining a sealing between the covers and the lead wires and a water repellent filter 36 for obtaining a seal between the inner and outer covers 12 and 13, while keeping an air ventilation capability of the space inside the covers. For receiving the lead wires 16, 18 and 19, the seal 2 is formed with holes 20such that the minimum thickness between the holes and the minimum thickness between the hole and an outer surface of the seal is 1 mm or more. A crimping of the outer cover 12 is done so that a deformation of the seal 2 in a range between 10 to 20% of the outer diameter is obtained.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: February 23, 1999
    Assignee: Denso Corporation
    Inventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta
  • Patent number: 5871542
    Abstract: The invention concerns endoprosthetic knee joint devices of the so called `meniscal knee`variety.A device is provided of the above type wherein the mutually engaging bearing surfaces of the tibial platform and the meniscal component have a part-cylindrical shaping to allow rotation therebetween about an antero-posterior axis, the superior bearing surface of the tibial platform preferably being convex.Movements of the natural joint can still be closely simulated and full congruency can be retained throughout the natural range of movement, but there is an additional degree of restraint at the tibio-meniscal interface. Unrestricted antero-posterior relative movement is allowed, as in the conventional meniscal knee, but the part-cylindrical interface shaping serves to reduce the risk of lateral or medial dislocation.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: February 16, 1999
    Assignee: British Technology Group Limited
    Inventors: John William Goodfellow, John Joseph O'Connor
  • Patent number: 5871685
    Abstract: Provided is a fast and efficient method of burnishing a brake pad. The brake pad is contacted with a heat source having a power density greater than about 270 Mw/m.sup.2. Also provided is pre-burnished brake pad having an increased coefficient of friction.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: February 16, 1999
    Assignee: Performance Friction Corp.
    Inventors: Stephen Chwastiak, Jens H. S. Lamba, Donald L. Burgoon
  • Patent number: 5872024
    Abstract: A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is formed which includes a beam structure. A weight is formed at the tip of the beam, and in the bottom surface of the weight in the bottom surface of the recess portion 2 facing the same, an electrode 5 is formed. An alternating current electric power is applied between the weight portion 4 and the electrode 5 so that static electricity is created and the weight is excited by the static electricity. In an axial direction which is perpendicular to the direction of the excitation of the weight, an electrode 6 is disposed to face one surface of the weight and a wall surface of the substrate which faces the same. A charge in a capacitance between the facing electrodes is electrically detected, and therefore, a change in a physical force acting in the same direction is detected.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: February 16, 1999
    Assignee: Nippondenso Co., Ltd.
    Inventors: Tetsuo Fujii, Masahito Imai
  • Patent number: 5868194
    Abstract: A method of making an investment casting mould comprises producing a CAD definition of a turbine blade, and determining the distribution of isosurfaces of constant temperature around the CAD definition of the at least one article if the external surface of the CAD definition of the at least one article was at a high temperature (Thigh). One of the isosurfaces of constant temperature is selected to define the external shape and the thickness of an investment casting mould. A pattern of the turbine blade is produced from the CAD definition of the turbine blade. The investment casting mould is made with an internal shape defined by the pattern of the turbine blade and an external shape and thickness distribution defined by the selected isosurface of constant temperature. The pattern is then removed from the investment casting mould.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: February 9, 1999
    Assignee: Rolls-Royce plc
    Inventor: Dominic J. Horwood
  • Patent number: 5865047
    Abstract: A pulsator, which is installed in a washing tub of a washing machine, includes a base, a post protruded upwardly from a upper surface of the base, a plurality of blades extended radially with respect to the post and outwardly the base, and protruded upwardly on the upper surface of the base, and a plurality of vanes formed on a upper portion of the post, extended radially and outwardly with respect to the upper portion of the post. The plurality of blades develop a heart-type water flow in the washing tub, and the a plurality of vanes develop a water flow at a central portion of the heart-type water flow, thereby the twisting and tangling of the laundry caused by the heart-type water flow can be minimized.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: February 2, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Chong-Man Yoon, Ki-Hyun Lim, Jeom-Gap Kim, Jong-Chil Lee
  • Patent number: 5866572
    Abstract: The invention concerns quinazoline derivatives of the formula I ##STR1## wherein X.sup.1 is a direct link or a group such as CO, C(R.sup.2).sub.2 and CH(OR.sup.2);wherein Q.sup.1 is phenyl, naphthyl or a 5- or 6-membered heteroaryl moiety and Q.sup.1 optionally bears up to 3 substituents;wherein m is 1 or 2 and each R.sup.1 may be a group such as hydrogen, halogeno and trifluoromethyl; andwherein Q.sup.2 may be phenyl or a 9- or 10-membered bicyclic heterocyclic moiety and Q.sup.2 optionally bears up to 3 substituents;or a pharmaceutically-acceptable salt thereof;processes for their preparation, pharmaceutical compositions containing them and the use of their receptor tyrosine kinase inhibitory properties in the treatment of proliferative disease such as cancer.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: February 2, 1999
    Assignee: Zeneca Limited
    Inventors: Andrew John Barker, Craig Johnstone
  • Patent number: 5862685
    Abstract: A washing machine transmission performs a washing by rotating a pulsator in forward and reverse directions during a washing cycle even though a driving source rotates in any one direction only, so that an overload in the driving source can be prevented. A first link is attached to an upper end of a driving shaft, and has a first guide pin. A second link is hinged to an inner peripheral surface of a brake drum at a first end and has a second guide pin, and has a first oblong slot formed between the first end and the second end. A third link is attached to a driven shaft, and has a second oblong slot. When the driving shaft rotates, the first guide pin rotates.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: January 26, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Hee-Tae Lim
  • Patent number: D408747
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: April 27, 1999
    Assignee: Oriental System Technology Inc.
    Inventor: Kevin Lin