Patents Represented by Attorney, Agent or Law Firm Milton Oliver
  • Patent number: 5678926
    Abstract: A thermocouple probe 10 suitable for use in a gas turbine engine comprises a thermocouple element 12 which is coaxially arranged inside a protective sheath 16. The thermocouple element 12 is resiliently supported by a helical member 18 which insulates the element 12 from deleterious vibrations induced in the sheath 16. In use, the thermocouple probe 10 projects through an aperture 30 in the casing 32 of a gas chamber 34. Vibrations in the probe 10 are further reduced by ensuring that the longitudinal axis AA of the probe is angularly offset from the central axis BB of the aperture 30, such that the outer periphery of the sheath 16 is in contact with the inner periphery of the aperture 30 in two diametrically opposite and axially offset locations.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: October 21, 1997
    Assignee: Solartron Group Limited
    Inventors: James Wolryche Stansfeld, Eric Metcalf
  • Patent number: 5672887
    Abstract: Ambiguity, in readings from an optical bubble detector used with tubing, can be reduced by shaping the tubing into the shape of a prism, so that when different contents of the tubing have differing indices of refraction, there is a clear difference in the exit angle of the light beam leaving the tube. A triangular prism shape is preferred for the compressed tubing. The optical bubble detector features an optics block formed with a V-shaped recess, and a clamp block. The optics block and clamp block cooperatively press or "sandwich" the flexible tubing into the V-shaped recess and deform it into a triangular prismatic cross-section. A generally U-shaped optical interrupter element, containing a photoemitter and a photosensor, fits into the optics block in such a manner that a light beam is directed radially into the triangular tubing section.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: September 30, 1997
    Inventors: Benjamin G. Shaw, Tony Joseph Lillios
  • Patent number: 5662029
    Abstract: The invention relates to a hot air oven for the preparation of foodstuffs, having: a casing; a refining chamber bounded by four side walls, a bottom wall and a cover wall; a first fan for producing a hot air flow in the refining chamber; a rotatable basket for the foodstuffs which can be introduced into the refining chamber and through which the hot air flow passes during operation; a control device for the performance of the refining process, said control device comprising a temperature-regulating system; and at least one air supply channel and at least one air discharge channel, a more reliable and low-maintenance operation of which is made possible by the provision of at least one flap to open or close the air supply channel and/or the air discharge channel.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: September 2, 1997
    Assignee: Ubert Gastrotechnik GmbH
    Inventors: Harald Ubert, Joachim Barthel
  • Patent number: 5663845
    Abstract: A magnetic recording/reproducing apparatus compares speed information obtained by speed detecting means for a magnetic tape with a set travelling speed of the magnetic tape in a control circuit, and controls the rotational frequency of a driving motor for a take-up reel, thereby controlling constant-speed travelling of the magnetic tape, with employment of no capstan. According to this system, the overall apparatus can be simplified and miniaturized with reduction in weight and cost. Further, it is possible to improve constant-speed travelling performance of the magnetic tape by adjusting resonance and antiresonance appearing due to total equivalent inertia moment related to the magnetic tape and reels in the transfer characteristic of the control system.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: September 2, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tatsushi Yamamoto, Shigeaki Kakiwaki, Tohru Okuda, Hideo Okada, Masaji Tsuji, Takamitsu Tadera, Akihito Yoshimoto
  • Patent number: 5657056
    Abstract: A liquid crystal display device provides two substrates, a display medium, a plurality of light waveguides, a plurality of signal wires, and a plurality of light switching elements, being provided at crosspoints between said plurality of light waveguides and said plurality of signal wires. On the clad layer of the light waveguide, the p-type and the i-type of the a-Si:H are laminated. On one end of the top of the i-type, the n-type is overlapped with part of the signal wire. On the other end of the top of the i-type, the n-type is overlapped with the drain electrode. On the drain electrode, a pixel electrode is formed. That is, the light switching element has an element structure in which nipin type back-to-back diodes composed of two pin type diodes series-connected in reverse are ranged in parallel toward light transmission. Hence, the same light signal is transmitted to these two back-to-back diodes.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 12, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Izumi, Sayuri Fujiwara
  • Patent number: 5657100
    Abstract: An optical transmittance adjusting device which includes an optical transmittance adjusting plane divided into a plurality of areas; and adjusting means for detecting an amount of light incident on each of the areas and adjusting an optical transmittance separately for each of the areas based on the detected amount of light.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: August 12, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshitaka Yamamoto, Yutaka Ishii
  • Patent number: 5652825
    Abstract: An improved power supply for converting any of various standard national AC network voltages to low-voltage DC power suitable for driving a 1 or 2-watt device, such as a fan, features a semiconductor control circuit (18, FET 46) which chops each half-wave of a rectified voltage and uses the low-voltage portions to feed charging current pulses to a storage capacitor. The voltage on the capacitor (14) is used by other portions of the circuit to regulate rotation speed of the fan or other consuming device (40) to a value set on a variable resistor. The use of the low-voltage portions of the input signal reduces power losses and increases efficiency.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: July 29, 1997
    Assignee: Papst-Motoren GmbH & Co. KG
    Inventors: Fritz Schmider, Benno Doemen
  • Patent number: 5641105
    Abstract: A fixing board, for an attraction-fastening type freight carrying device to be mounted on the roof of a motor vehicle, has been improved. The fixing board is composed of a magnetic attraction force contact plate, a film-like suction-cup, and a releasing handle. The magnetic attraction force contact plate has a three-layer structure comprising a soft magnet plate, an iron plate and smooth thin-film sheet coated on the iron plate. The iron plate has a plurality of grooves radially extending, which are elongated dead-end grooves. Further, the magnetic attraction force contact plate has a through-hole into which a substantially cylindrical seal lip extending from the suction film is inserted so as to make an air value. This air hole takes on a closed state when the freight carrying device is installed on the vehicle roof, and takes on an open state when being removed therefrom. The film-like suction-cup is formed throughout the circumference of the magnetic attraction force contact plate.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: June 24, 1997
    Assignee: Autobacs Seven Co., Ltd.
    Inventor: Masumi Goto
  • Patent number: 5642340
    Abstract: A focusing control device for use in an optical disk apparatus of the present invention is provided with: an error-signal generation circuit for generating a focus error signal; a detection circuit for detecting the quantity of light derived from a light beam reflected from an optical disk in order to form a light signal; a voltage-generating circuit for generating an offset signal whose polarity is suitable for an out-focus state based on the difference between a reference signal and the light signal, only when the light signal is smaller than the reference signal, that is, only during the out-focus state; an addition amplifier for adding the offset signal to the focus error signal; and a control circuit for controlling the position of a lens in response to the output of the addition amplifier. With this arrangement, the focus error signal is added by the offset signal so as to be shaped only during the out-focus state.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: June 24, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masaru Nomura
  • Patent number: 5640210
    Abstract: High definition television coder/decoder a high definition coder or decoder includes a number of parallel sub-decoders or coders. The image to be coded or decoded is divided into a number of stripes, a given stripe being coded or decoded by a single sub-coder or sub-decoder. Every N.sup.th stripe is coded or decoded by the same sub-coder/sub-decoder, where N is the number of sub-coders or sub-decoders. The number of sub-coders is independent of the number of sub-decoders whereby a reduction in the number of sub-coders with increasing bit-rate capacity does not necessitate a change in decoder.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: June 17, 1997
    Assignee: British Broadcasting Corporation
    Inventors: Michael James Knee, Nicholas Dominic Wells
  • Patent number: 5640374
    Abstract: A recording layer having a recording magnetic domain for recording thereon information is formed. A readout layer for reading the information by the application of a light beam is formed on the recording layer. An intermediate layer made of a film having in-plane magnetization is formed between the recording layer and readout layer to control a magnetic exchange coupling force between the recording layer and readout layer. The readout layer is arranged so that the stable magnetic domain width in the readout layer is larger than that of the recording magnetic domain in the recording layer at room temperature. At a readout temperature achieved by the light beam, the stable magnetic domain width becomes smaller than that of the recording magnetic domain, and the magnetization direction in the recording magnetic domain is copied.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: June 17, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Junji Hirokane, Michinobu Mieda, Junichiro Nakayama, Akira Takahashi
  • Patent number: 5635950
    Abstract: In a drive circuit for a display apparatus into which a digital video signal is input and in which a plurality of parallel signal electrodes are provided, one of signal voltages having different levels is output in accordance with the digital video signal, or two adjacent ones of said signal voltages are simultaneously output. Alternatively, one of the signal voltages is supplied to a signal electrode in one portion of one output period, and another one of the signal voltages is supplied to the signal electrode in another portion of the output period. The length ratio of the two portions of one output period is appropriately determined according to the digital video signal, whereby an arbitrary voltage corresponding to the video signal data can be applied to the pixel.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: June 3, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisao Okada, Shigeyuki Uehira, Katumi Miki, Kuniaki Tanaka, Toshihiro Yanagi
  • Patent number: 5635296
    Abstract: A magneto-optical recording medium includes a first magnetic layer, a second magnetic layer and a third magnetic layer respectively made of rare earth-transition metal alloys. The first magnetic layer has a perpendicular magnetization in a temperature range between room temperature and its Curie temperature. The second magnetic layer has its Curie temperature higher than that of the first magnetic layer, and coercive force thereof at room temperature is nearly zero. The third magnetic layer has a perpendicular magnetization in a temperature range between room temperature and its Curie temperature. The Curie temperature of the third magnetic layer is higher than the Curie temperature of the first magnetic layer. The coercive force of the third magnetic layer at room temperature is lower than that of the first magnetic layer. The compensation temperature of the third magnetic layer is higher than that of the second magnetic layer.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: June 3, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Junichiro Nakayama, Michinobu Mieda, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta
  • Patent number: 5635115
    Abstract: A method for producing a semiconductor device according to the present invention includes the steps of: disposing a functional element in each cavity of a multi-cavity circuit board, the multi-cavity circuit board having a number of cavities opening upward; overlaying a sealing resin sheet with a predetermined thickness containing, as a sealing resin, one of a thermoplastic resin and a thermosetting resin which is melted by heating and is cured by further heating on the multi-cavity circuit board so as to cover all of the cavities thereof; heating and pressurizing the sealing resin sheet on the multi-cavity circuit board so that the sealing resin sheet is melted to be filled in each of the cavities; and curing the molten resin filled in each of the cavities.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: June 3, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Konishi, Masako Yabe, Toshiro Hida
  • Patent number: 5634172
    Abstract: An image forming apparatus has a locking mechanism and a detecting switch. The locking mechanism locks a drive mechanism not to drive a waste toner container when no waste toner container is loaded in a predetermined place, and releases and thus allows the drive mechanism to drive the waste toner container when the waste toner container is loaded in the predetermined place. The detecting switch outputs, in response to the locking mechanism, a detection signal which varies depending on whether the waste toner container is loaded in the predetermined place. A transporting mechanism for transporting waste toner to the waste toner container is also locked in linkage with the locking mechanism. Consequently, the image forming apparatus has a simple structure and is low-cost and free from faulty operations in judging whether the waste toner container is loaded in the predetermined place and in preventing a faulty transportation of the waste toner to the waste toner container.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: May 27, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Nobuo Manabe
  • Patent number: 5633956
    Abstract: In a digital video display system, a composite time-compensated video picture, generated from a plurality of input fields, includes discontinuities, e.g. aliases resulting from relative movement of a foreground object and a background. These discontinuities are the results of time-projections from the sequential input fields or frames, which include movement of objects between the respective instants of the frames. These discontinuities are detected and are smoothed by a softening filter, in order to improve the quality of the resulting output image. In a preferred embodiment, the filtering is applied directionally, based on the nature of the discontinuity detected.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: May 27, 1997
    Assignee: British Broadcasting Corporation
    Inventor: Michael Burl
  • Patent number: 5634173
    Abstract: In an adjustment mode, a black reference member is positioned opposite to a photosensor. Light reception data output from an A/D converter at this time is stored in a memory. In an image formation mode, based on a value obtained by subtracting output data stored in the memory from output data of the A/D converter in a state where the photosensor is opposite to an original, a copy lamp is driven. As a result, an image mode can be controlled based on an accurate detection result of an image density.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: May 27, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Naoyuki Kamei
  • Patent number: 5631096
    Abstract: A magneto-optical memory device is provided with a base whereon a first magnetic film which exhibits in-plane magnetization at room temperature and exhibits perpendicular magnetization at above room temperature, a second magnetic film having its Curie temperature above room temperature; and a third magnetic film having its Curie temperature set above the Curie temperature of the second magnetic film, which exhibits perpendicular magnetization in a temperature range between room temperature and Curie temperature are laminated in this order. When recording, the temperature of the third magnetic film is raised to the vicinity of its Curie temperature, and information is recorded thereon by an external magnetic field. As the magnetization of the second magnetic film having a temperature rise above its Curie temperature disappears, an exchange coupling force is not exerted between the first magnetic film and the third magnetic film.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Junsaku Nakajima, Yoshiteru Murakami, Kenji Ohta, Akira Takahashi
  • Patent number: 5629908
    Abstract: A magneto-optical recording medium comprising a readout layer, an intermediate layer, and a recording layer. Two light beams having high and low light intensities respectively are applied while applying an external magnetic field. The magnetization direction of the recording layer is changed according to information, by reversing the sub-lattice magnetic moment of the readout layer in the case of the high light intensity. The intermediate layer exhibits a perpendicular magnetization during the irradiation, and also exhibits an in-plane magnetization at room temperature. Since it is not necessary to provide a device for generating a magnetic field for initializing every recording, it is possible to avoid increase in the size of the recording and reproducing apparatus. Moreover, the magnetization direction of the readout layer can be easily controlled with an external magnetic field, and the optical modulation overwriting property can be stabilized.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: May 13, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Junji Hirokane, Junichiro Nakayama, Michinobu Mieda, Akira Takahashi
  • Patent number: D381335
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: July 22, 1997
    Assignee: British Broadcasting Corporation
    Inventor: Graham Whitehead