Patents Represented by Law Firm Keck, Mahin & Cate
  • Patent number: 5651257
    Abstract: The present invention provides a working fluid composition for a refrigerating machine obtained by mixing an ammonia refrigerant with a lubricating oil which is extremely excellent in solubility with the ammonia refrigerant. The working fluid composition comprises a mixture of ammonia and one or more kinds of polyether compounds; the refrigerating machine is characterized by constituting a refrigerating cycle or a heat pump cycle through which the working fluid composition is circulated.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 29, 1997
    Assignee: Japan Energy Corporation & Mayekawa Manufacturing Co. Ltd.
    Inventors: Keisuke Kasahara, Kuniaki Kawamura, Takashi Kaimai, Hisashi Yano
  • Patent number: 5649759
    Abstract: A lamp for fluorescent tubes includes a housing of plastic having two half-shells that can be divided laterally. A plug element is molded out of the housing and an illumination field is enclosed by an illumination field cover. Electrical equipment necessary for operating the fluorescent tube is provided. In the area of the separation line of the half-shells adjacent to the illumination field, at least one slot-shaped cutout for insertion of contact pins of the fluorescent tube is provided.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: July 22, 1997
    Inventor: Heinrich Korte
  • Patent number: 5650337
    Abstract: The invention related to a process for the production of a monolithic electronic and/or optoelectronic single-element or multi-element structure from a semionic material selected from the group of semionic materials comprising doped elemental semiconductors and doped binary, ternary or multinary chalcogenide or pnictide semiconductors, said process comprising: (a) establishing a location in a semionic body; (b) applying an electric field to said location in said semionic body; (c) maintaining said semionic body including said location at a temperature sufficiently low to preclude melting or decomposition of the semionic body while said electric field is being applied; and (d) controlling the electric field as to magnitude and time so that no decomposition and macroscopic melting of the material occurs while creating doping profiles sufficiently sharp to define at least one homojunction and thus create an electronic or optoelectronic device element in the semionic material in said location thereof.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: July 22, 1997
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: David Cahen, Leonid Chernyak, Abram Jakubowicz
  • Patent number: 5650475
    Abstract: The present invention relates to a low solvent content type-coating composition which provides the resultant coating with improved surface appearance, acid resistance, alkali resistance, weathering resistance, scuff resistance and solvent resistance, while the content of an organic solvent of the coating composition can be much reduced to 0 to 30% at 25.degree. C. The low solvent content type-coating composition comprises a vinyl oligomer having a blocked carboxyl group and an additional group selected from an epoxy group, a silanol group, a hydrolyzable silyl group and an acid anhydride group. The vinyl oligomer has a number average molecular weight (Mn) of 600 to 2000, a weight average molecular weight (Mw) of 600 to 5000, and a ratio of a weight average molecular weight/a number average molecular weight (Mw/Mn) of 1.0 to 2.5. The blocked carboxyl group and an additional group may be present in the same or different vinyl oligomers.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 22, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Yoshiaki Marutani, Tadamitsu Nakahama, Takashi Tomita, Hiroyuki Uemura, Kazuhi Koga, Mika Ohsawa, Goro Iwamura
  • Patent number: 5647820
    Abstract: A hydraulic control system of an automatic transmission during a shift operation wherein a control pressure is controlled to selectively engage and release a plurality of frictional elements to establish a desirable shift stage comprising inertia phase detecting device for detecting a starting point of an inertia phase of the shift operation from one shift stage to another, and control pressure reducing device for gradually reducing the control pressure introduced to a frictional element to be engaged after the inertia phase is detected. The torque shock in the shift operation can be effectively reduced.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: July 15, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Akio Matsumoto, Tatsutoshi Mizobe, Kozo Ishii, Hiroshi Shinozuka
  • Patent number: 5647370
    Abstract: The invention relates to an ultrasonic spirometer with a graduated tube where a transmitter/receiver cell pair is positioned in a graduated portion diagonally or perpendicularly to the graduated tube axis, with an easily replaceable breathing tube being insertable into the graduated tube. The breathing tube is at least partially made from essentially one material which is permeable for ultrasonic waves, but wholly or at least largely impermeable to germs and contaminants. In accordance with the invention, the material permeable for the ultrasonic waves and wholly or at least largely impermeable to the germs and contaminants is positioned at least in the area in which the graduated portion intersects the graduated tube over the whole circumference of the breathing tube.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 15, 1997
    Assignee: NDD Medizintechnik GmbH
    Inventor: Karl Harnoncourt
  • Patent number: 5647524
    Abstract: A tearing-off roller pair, for tearing off sections or strips divided by perforation cuts from a material web, consists of a first roller with a substantially smooth steel shell and, applied against it, a second roller with a resilient body set into it for increasing the contact pressure, which resilient body projects above its peripheral surface in its unstressed state. To allow a greater retaining force to be exerted on the sections to be torn off, several of the resilient bodies are set in a recess along a cylindrical surface of the second roller.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: July 15, 1997
    Assignee: Windmoller & Holscher
    Inventor: Horst Rautenberg
  • Patent number: 5648692
    Abstract: There is provided a stator yoke capable of improving magnetic characteristics and a rust-proofing effect of a stator yoke produced by using a Fe-Cr type alloy. When a stator yoke is produced by using a Fe-Cr type alloy, its magnetic characteristics can be improved, but when press working is made to obtain a predetermined shape, the magnetic characteristics drop. Annealing is carried out so as to recover the magnetic characteristics. This annealing generates the property change of a surface layer and a rust-proofing effect lowers.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: July 15, 1997
    Assignee: FDK Corporation
    Inventors: Kazuyuki Watanabe, Hirofumi Nakano, Masakuni Kamiya, Kazutaka Honma, Takayuki Matsui, Akito Suzuki
  • Patent number: 5648905
    Abstract: A traveling control system for a motor vehicle includes a detector for detecting an object which exists in front of the motor vehicle to follow a vehicle traveling ahead. The system further includes a first course determination device for estimating a first course on which the motor vehicle will travel hereafter, an identification device for identifying an first target vehicle among the objects existing on the first course, and a second course estimation device for estimating, based on the first target vehicle, a second course on which the motor vehicle will travel hereafter at least while the first target vehicle is outside of the first course. The identification device identifies a second target vehicle among vehicles which travel on the first or second courses while the first target vehicle is outside of the first course.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: July 15, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Tomoji Izumi, Kenji Shimizu, Yoshiaki Sugamoto, Kazuyoshi Okuda, Satoru Ando, Toshihiro Ishihara, Takahiro Inada, Tsunehisa Okuda
  • Patent number: 5646091
    Abstract: The present invention relates to an extract from Rehmannia glutinosa plant having a safener activity to a herbicide paraquat, a safener composition and a method for using the same. When the extract or the safener composition of the present invention is treated before treatment of the herbicide or with the herbicide simultaneously, phytotoxicity to the target crops can be reduced or prevented and the crops can be protected.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: July 8, 1997
    Inventor: Hee Sul Lee
  • Patent number: 5646811
    Abstract: In a reverse-charge prevention apparatus (24) including a 1st breaker (25) for connecting or disconnecting an electric power system (A) to or from a distributed electric power apparatus (11), in which the 1st breaker (25) is switched off when the distributed electric power apparatus (11) is disconnected from the electric power system (A) by switching off a 2nd breaker (F) disposed in the electric power system (A) so that reverse-charge from the distributed electric power apparatus (11) to the electric power system (A) is prevented, the reverse-charge prevention apparatus (24) further includes a disturbance generator (20) for slightly varying electric power outputted by the distributed electric power apparatus (11) regularly with a given period; a variable period extraction circuit and a filter (26, 27) for extracting a variable period same in period to the given period, the variable period existing in a period of an alternating-current voltage outputted by the distributed electric power apparatus (11); and a
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: July 8, 1997
    Assignee: Kabushiki Kaisha Shikoku Sogo Kenkyujo
    Inventors: Hiromasa Higasa, Fumihiko Ishikawa
  • Patent number: 5645071
    Abstract: The invention relates to a method for the measurement of the molar mass of a gas or gas mixture and an apparatus for the performance of the method. The gas or gas mixture to be investigated is passed through at least one holder, on which at least one sonic or ultrasonic transmit-receive cell is arranged defining a baseline and preferably arranged obliquely to the axis of the tube. The sonic or ultrasonic transmit-receive elements radiate a pulsed sonic signal, which measures the transit times of the sonic pulses along the baseline. Using a temperature probe for instance the variations in gas temperature along the at least one sonic transmission path is determined. From the transit time of the sonic pulses and the measured or assumed temperature the molar mass is found. The apparatus in accordance with the invention may be employed with advantage in pulmonary function diagnostics.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: July 8, 1997
    Assignee: NDD Medizintechnik GmbH
    Inventors: Karl Harnoncourt, Dieter Patzold, Walter Guggenbuhl, Christian Buess
  • Patent number: 5644090
    Abstract: A gas meter includes a measuring tube through which gas to be supplied is fed. The tube includes two ultrasonic transducers between which ultrasonic signals are transmitted so that gas flow is measured in dependence upon the difference between the times of flight of ultrasonic signals transmitted therebetween in opposite directions. The gas flow is determined from the difference between the times of flight. A digital display is operative to indicate the volume of gas used, and an electrical power supply is used for driving the apparatus. The times of flight are measured by an electronic clock. Finally, a data interface facilitates the feeding of data to or from the meter.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: July 1, 1997
    Assignee: Siemens Measurements Limited
    Inventor: Karl Damian Spendel
  • Patent number: 5642624
    Abstract: A super-conducting electro-magnet for use in an MRI system comprising a helium vessel within which magnet windings are positioned, a vacuum chamber within which the helium vessel is contained, at least one thermal shield positioned between the helium vessel and the vacuum chamber, a service turret having a neck tube which is arranged to extend through the thermal shield within the vacuum chamber so as to communicate with the helium vessel for filling purposes, the thermal shield being thermally coupled to the service turret neck tube by means of a plurality of flexible connector strips fabricated from laminated conductive material which at one end are secured to the thermal shield and which at the other end thereof are secured to the service turret neck tube, sufficient strips being provided substantially to surround the service turret neck tube thereby to provide a substantially continuous thermally conductive junction between the service turret neck tube and the thermal shield.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: July 1, 1997
    Assignee: Oxford Magnet Technology Limited
    Inventor: Russell Peter Gore
  • Patent number: 5642839
    Abstract: A holder for squeezing a soft tube, includes a main housing having a longitudinal slot and a hollow cylindrical interior, a center tube gripper having a longitudinal slot for receiving a closed end of a soft tube and being received by the main housing, a cover being assembled with the main housing at one end of the housing and having a plurality of fixed teeth, the cover receiving a key section of the center tube gripper, and a rotating device for rotating the center tube gripper so that a soft tube inserted into the longitudinal slot of the center tube gripper is wound up, and thereby flattened. The wound portion of the soft tube is stored inside the main housing. The rotating device further includes a rotation handle for manually rotating the center tube gripper, the rotation handle receiving the key section of said center tube gripper.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: July 1, 1997
    Inventor: Wan Ki Lee
  • Patent number: 5643968
    Abstract: The present invention relates to ion exchange membranes comprising soluble graft copolymer comprising a backbone of a first polymer having a main chain containing aromatic rings and a polymerizable vinyl or ring containing compound which contains at least one functional group which displays ion exchange functionality or may be converted to display ion exchange functionality, which is grafted onto said first polymer on at least one of said aromatic rings or on at least one benzylic carbon atom of said aromatic rings. The copolymer components may be selected to produce membranes for a variety of uses including electrodialytic processes such as electrodialytic concentration and separation processes, electrodialytic water splitting, electrolysis or electrolytic splitting of water and fuel cells for electrical generation; and pressure or chemical potential driven membrane processes such as ultrafiltration, reverse osmosis, piezodialysis, diffusion dialysis and pervaporation.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: July 1, 1997
    Assignee: The Graver Company
    Inventors: Christopher Andreola, Frederick P. Chlanda, Jian-Ping Huang
  • Patent number: 5643611
    Abstract: An apparatus for calibrating and supporting an extruded film blown up into a film bubble made of a synthetic melt in an inflation extrusion installation consisting of supporting means driven by link rods whose inner ends are articulated in the median zone of each supporting means, and whose outer ends are articulated to brackets, which form parts of frames that carry spindle nuts at at least two points, and axially parallel screw spindles which are mounted on the basket-shaped frame and are provided with drive means, and have thread sections provided with threads of opposite hand screwed into said spindle nuts; that at a distance from one of said link rods, there is arranged an additional link rod parallel thereto and whose respective ends are articulated to a respective said supporting bar and to a said bracket.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: July 1, 1997
    Assignee: Windmoller & Holscher
    Inventors: Rudolf Peters, Wilfried Howe
  • Patent number: 5640750
    Abstract: A wheel assembling apparatus for assembling different types of wheels to different types of vehicle bodies conveyed along a vehicle assembling line has a robot hand for fastening a plurality of nuts to hub bolts provisionally affixed to the wheel so as to assemble the wheel held by the robot hand to the vehicle body. The robot hand is provided with a center pin attachment to which different types of center pins, having been prepared correspondingly to center holes of the different types of wheels, are selectively and detachably attached. The center pin attached to the robot hand is fitted into the center hole of the wheel hub and locates the wheel in position with respect to the robot hand.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: June 24, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Norio Yoshida, Hideki Fujiwara, Isamu Tomosue
  • Patent number: 5641999
    Abstract: A vehicle ignition key device directly activates a rotary switch by a rotation-driving mechanism remotely driven by an external control signal for stopping the engine of the vehicle. The device is further useful as a burglar-proof device. A rotary switch can be placed in OFF, ON and START positions by key operation, and a rotation-driving mechanism activates the switch in each of the positions by receiving an externally dispatched signal. Further, this device is constructed for use as the burglar-proof device by being provided with a vehicle speed detector and a mode switch for burglar-proofing.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: June 24, 1997
    Inventor: Yoshinori Kawashima
  • Patent number: 5641891
    Abstract: Method for setting and/or checking the flow or through-flow in valves, particularly injection valves for internal combustion engines. The injection valve is placed in a measuring device and subject to the action of a fluid. The fluid is passed through the valve at a given volume flow. The pressure set in the measuring device is determined and serves as a measure for the setting and/or checking of the injection valve.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: June 24, 1997
    Assignee: Sonplas GmbH
    Inventors: Herbert Frankl, Christian Ludwig, Rudolf Raith