Patents Represented by Law Firm Lane, Aitken & Ziems
  • Patent number: 4300666
    Abstract: A current collecting means in an aerial cableway system collecting electric power for driving a self-propelled aerial carriage, is capable of maximization of the lifetime of a current collecting shoe. The current collecting means comprises a current-carrying cable having at least a planar surface on the outer surrounding thereof and a current collecting shoe having a planar contacting surface to be urged onto the planar surface of the cable. The contact between the shoe and cable is carried out in both planar surfaces to prevent uneven wear of the shoe.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: November 17, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Masaaki Taniguchi, Shinji Nakata, Susumu Ueki
  • Patent number: 4296197
    Abstract: In a halftone printing system, halftone positive prints are made directly from gray scale photographic negatives by an enlarger apparatus which shines a beam of light through the negative and focuses an image of the negative on a sheet of high contrast photographic printing paper through a halftone screen. A secondary light source is provided to irradiate the printing paper to provide satisfactory halftone representation of the gray scale. The positive halftone prints are assembled with cold type from which a negative is made. From the negative, a printing plate is then made.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: October 20, 1981
    Assignee: Innovative Photograhic Enterprises, Inc.
    Inventor: Robert W. Stevie
  • Patent number: 4292979
    Abstract: Allergy testing apparatus for conveniently and quickly testing a subject's reactions to a plurality of allergens. The apparatus includes needle blocks, cover apparatuses including a layer of closed-cell foam having a smooth skin, and apparatus for removably holding a plurality of allergen containing vials for cooperation with the needle blocks and the cover apparatuses. In use, closure of the vials may be effected by the cover apparatus of the needle block, and the respective allergen containing vials are maintained in an uncontaminated condition.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: October 6, 1981
    Inventors: Joseph T. Inglefield, Jr., William L. Mahood
  • Patent number: 4288241
    Abstract: Sludge is composted by arranging the sludge in a pile over a conduit and air is forced into the pile in spaced time intervals and air is drawn from the pile into the conduit in alternate time intervals.The perforated conduits are adapted to be placed under and extend the length of two windrow compost piles. A reversible blower is connected to blow air to and withdraw air from each of the conduits. The blower is timed and controlled to blow air from a first pile through the conduits and into a second pile in spaced time intervals and in alternate time intervals to withdraw air from the second pile through the conduits and into the first pile.
    Type: Grant
    Filed: July 26, 1979
    Date of Patent: September 8, 1981
    Inventor: Gedaliahu Shelef
  • Patent number: 4287146
    Abstract: A nib-type writing pen is formed by compressing a plurality of fibers into a bundle, extruding a plastic sheath around the fiber bundle, cutting the sheathed fiber bundle to a suitable length and injecting a urethane prepolymer into one or both ends of the cut and sheathed fiber bundle.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: September 1, 1981
    Inventor: Yoshio Midorikawa
  • Patent number: 4287138
    Abstract: A method is disclosed for recovering and reclaiming heat from a source of relatively hot gases, which are preferably substantially vapor-saturated, by directly contacting the gases with a relatively cooler spray of liquid, such as water, in a heat exchange zone. The relatively warm liquid resulting from the contact of the sprayed cooler liquid with the vapor-saturated gases are collected in a receiver zone in the heat exchanger. This relatively warm liquid is then available for use. The hot gases which entered the heat exchanger will exit at a cooler temperature. They may be released to the atmosphere or returned to a process or room. The method is particularly suited for recovering heat from steam system condensate vents, dye fixation steamer exhausts, boiler exhaust stacks, and dry can enclosures such as those used in the textile and paper industry.
    Type: Grant
    Filed: March 5, 1980
    Date of Patent: September 1, 1981
    Inventor: Lynn A. Buckner
  • Patent number: 4285596
    Abstract: An improved optical system is disclosed for rapid, accurate spectral analysis of the reflectivity or transmissivity of samples. A concave holographic diffraction grating oscillated at high speed is utilized to provide a rapid scanning of monochromatic light through a spectrum of wavelengths. The grating is positively driven at very high speed by a unique cam drive structure comprising identically shaped conjugate cams. The rapid scan by the grating enables the reduction of noise error by averaging over a large number of cycles. It also reduces the measurement time and thus prevents sample heating by excessive exposure to light energy. A filter wheel having dark segments for drift correction is rotated in the optical path and is synchronous with the grating. Source optics is employed to optimally shape the light source for particular applications.
    Type: Grant
    Filed: August 16, 1977
    Date of Patent: August 25, 1981
    Assignee: Neotec Corporation
    Inventor: Isaac J. Landa
  • Patent number: 4284304
    Abstract: A roof finisher is mounted over the roof panel and the side pillars of a vehicle. The front edge of the part of the finisher mounted over a side pillar is secured to the side pillar by a mounting structure, comprising a first fitting member fixed on the front of the side pillar adjacent to the window glass and angling outwards and forwards, a second fitting member fixed to the front edge and angling backwards and inwards, and means for fixing these two fitting members together.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: August 18, 1981
    Assignee: Nissan Motor Company Limited
    Inventor: Yoshiharu Nakamura
  • Patent number: 4282841
    Abstract: An ignition timing control system for an internal combustion engine comprises first circuitry for producing a function of the intensity of combustion knock in each cylinder in a sequence, second circuitry for storing the function of each cylinder respectively in a memory circuit each of which corresponds to a specific cylinder, and third circuitry for determining the ignition timing of each cylinder by modifying the basic ignition timing determined by an advance mechanism, in accordance with the respectively stored functions.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: August 11, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Yasuo Takagi, Michio Onoda, Masaaki Katsumata, Kenji Yoneda
  • Patent number: 4282114
    Abstract: Disclosed is a catalyst for polymerizing .alpha.-olefins which comprises(A) a composition obtained by co-comminuting(a) a magnesium halide,(b) an organic acid ester,(c) a halogenated aliphatic or alicyclic hydrocarbon,(d) at least one ingredient selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, halogenated aromatic hydrocarbons, liquid propylene oligomers and aromatic ethers, and(e) an aluminum halide optionally added thereto and then heat-treating the resulting mixture together with titanium tetrachloride;(B) an organic aluminum compound; and(C) an organic acid ester or a complex thereof with an aluminum halide.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: August 4, 1981
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Akira Ito, Heizo Sasaki, Masanori Osawa, Masahiro Kouno, Kenji Iwata
  • Patent number: 4281446
    Abstract: A method and structure for joining a harder to a softer sheet are disclosed. Sharp projections are formed surrounding a hole on the harder sheet, and these projections are penetrated through the softer sheet and then bent back and around so as to engage with the softer sheet. In a preferred embodiment, the projections are formed by boring a conical hole in the harder sheet, cutting radial slots which lead outwards from the hole, and bending the periphery of the hole perpendicular to the sheet. The acute angle formed by the conical surface of the hole and one face of the sheet ensures that the projections are sharp.
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: August 4, 1981
    Assignee: Nissan Motor Company, Limited
    Inventor: Yoshihumi Umeno
  • Patent number: 4280744
    Abstract: Disclosed is a foldable desk or table comprising a support frame having pivotal support portions in the upper portions of the riser portion thereof, a single rectangular top plate of a length greater than the height of the pivotal support portions from a floor surface and swingably supported on the pivotal support portions to have a pivotal line across the width and at a position closer to the base end thereof, the pivotal line defining a swinging length of the top plate slightly shorter than the height of the pivotal support portions, and a leg swingably connected to the underside of the top plate at the outer free end thereof, the leg member being folded onto the underside of said top plate when the outer free end of the top plate is rotated about the pivotal line into a vertical folded position. Also disclosed is a foldable desk usable as a bed desk by providing an auxiliary leg in addition to the main leg.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: July 28, 1981
    Inventor: Yutaka Nakano
  • Patent number: 4280411
    Abstract: In an aerial transport system having an aerial track such as a cableway or tramway and one or more carriages travelling along the track, a structure for suspending the carriage from the track comprising a beam, both ends of which are pivotally connected to a plurality of frames supporting wheels, the frames being rotatable in a yaw direction about yaw axes with respect to the beam, and a hanger, the upper end of which is connected to the beam in a pivotable position in a pitch direction about a pitch axis with respect to the beam, the improvement comprising, in combination a plurality of separate beams being positioned apart from one another and linked to respective opposing ends by link members in alignment, a plurality of frames respectively connected to both ends of a respective beam in a pivotal position with respect to the beam about respective yaw axes, one wheel being mounted on each of the frames, and a plurality of hangers, the lower ends of which are connected to a carriage body in a pivotable posit
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: July 28, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Shinji Katayose, Yukiyoshi Sasabe, Yoshiaki Yokota, Junsuke Kuroki, Shuuji Torii
  • Patent number: 4279267
    Abstract: There is provided a proportioning device for connection to a main line carrying a pressurized fluid, for the purpose of introducing into or drawing from the main line a fluid at a rate standing in a substantially constant proportion to the flow rate of the main line. The device comprises a housing, at least one opening of which is connected to the main line and another opening of which is connected to the proportioning branch line. The device comprises a valve arranged in the housing and capable of closing the passage of the fluid into and from the proportioning branch line.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: July 21, 1981
    Inventor: Dan Bron
  • Patent number: 4279427
    Abstract: A ski edging device for a snowmobile includes an articulable joint connected between the snowmobile body and the skis to permit rotation of the skis relative to the body about a steering axis and to permit rotation of the skis relative to the body about a camber axis to control the angle of the inclination of the skis during turning maneuvers to prevent lateral side slipping of the snowmobile. A first control arm is secured to a portion of the articulable joint to move with rotation of the skis about the steering axis and a second control arm is secured to a second portion of the articulable joint to move with rotation of the skis about the camber axis. A cable and pulley system is connected between the first and second control arms such that a turning movement of the skis about the steering axis causes the first control arm to vary the position of the second control arm to rotate the skis about the camber axis to provide the desired edging effect.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: July 21, 1981
    Inventor: Soichi Kawazoe
  • Patent number: 4278063
    Abstract: An exhaust gas purifying system for an internal combustion engine including at least one combustion chamber connected to an intake port through an intake valve. The system comprises a first passage for passing a portion of exhaust gases discharged from the combustion chamber, a second passage for passing air, a fluid passage, at least one fluid injection nozzle having its one end connected to the fluid passage and the other end extending into the intake port toward the combustion chamber, the fluid injection nozzle adapted to open when the intake valve opens, and means responsive to engine operating condition for connecting the fluid passage to the first passage to permit injection of exhaust gases through the fluid injection nozzle into the combustion chamber during acceleration and for connecting the fluid passage to the second passage to permit injection of air through the fluid injection nozzle into the combustion chamber during normal operation or idling.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: July 14, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Ken Nakamura, Kunihiko Sugihara, Shizuo Ishizawa
  • Patent number: 4276863
    Abstract: Apparatus for controlling the number of enabled cylinders of an internal combustion engine during deceleration comprises a plurality of comparators responsive to a signal indicative of the engine rotational speed upon deceleration of the engine. The threshold voltages of the comparators are arranged stepwise so that each comparator produces an output signal when the engine speed falls below each threshold voltage. The output signals of the comparators are supplied to logic circuits to control a plurality of switches via which the fuel injection control pulse signal is respectively applied to fuel injection valves to increase in a stepwise fashion the number of enabled cylinders from the fuel cut-off state thereby preventing occurrence of impacts or shocks in the transition period of reactivation of the cylinders upon deceleration.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: July 7, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Fukashi Sugasawa, Haruhiko Iizuka, Junichiro Matsumoto
  • Patent number: D259803
    Type: Grant
    Filed: July 25, 1978
    Date of Patent: July 7, 1981
    Inventor: Dennie L. Coffin
  • Patent number: RE30781
    Abstract: A logarithmic amplifier comprising a common-emitter type transistor amplifier circuit with an emitter resistor and a collector load. A bias voltage is applied to the base of the transistor through a diode so that the overall input-output transfer characteristic of the amplifier exhibits a logarithmic characteristic for a relatively wide range of input signals. A cascade connection of several of the basic amplifier circuits enlarges the dynamic range over which a logarithmic transfer characteristic is achieved.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: October 20, 1981
    Assignee: Trio Kabushiki Kaisha
    Inventor: Yukihiko Miyamoto
  • Patent number: D263044
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: February 16, 1982
    Assignee: Assmann G.m.b.H.
    Inventor: Werner Schulze-Bahr