Patents Represented by Law Firm Hill, Van Santen, Steadman & Simpson
  • Patent number: 5169790
    Abstract: A thyristor having low-reflection light-triggering structure. In a light-triggerable thyristor, pyramidal depressions are formed in a simple manner by a preferred etching method, being formed in the region of the photon entry face in order to produce a low-reflection light-triggering structure. Incident light is absorbed in the pyramidal depressions largely independent of the wavelength of the incident light and nearly completely. The low-reflection light-triggering structure thereby produced can be formed with relatively little outlay. This is especially true when a defined overhead ignition voltage is simultaneously set by the pyramidal depressions.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: December 8, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Tuerkes, Reinhold Kuhnert
  • Patent number: 5169804
    Abstract: In a method for fastening a semiconductor body provided with at least one component to a substrate, an under side of the semiconductor body is provided with a first contacting layer and with a powdered metal layer covering this first contacting layer. An upper side of the substrate is provided with a second contacting layer. The coated surfaces of the semiconductor body and of the substrate are then pressed together while being heated. When the semiconductor body is composed of a part of a semiconductor wafer that comprises a plurality of identical or similar parts, then the first contacting layer and the powdered metal layer of the invention are applied in common on the back side of the semiconductor wafer for all semiconductor bodies.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: December 8, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventor: Herbert Schwartzbauer
  • Patent number: 5169703
    Abstract: A magnetic recording medium having minute irregularities on the surface of a magnetic layer is disclosed. The value of the ratio A.sub.V /A.sub.P, where A.sub.V and A.sub.P are cross-sectional areas of valleys and projections as measured in a plane lower by 50 nm and in a plane higher than 50 nm than an intermediate plane of the magnetic layer, respectively, with the measurement being made using a three-dimensional roughness meter, is given by A.sub.V /A.sub.P .gtoreq.0.90, wherein the intermediate plane is a plane for which the cross-sectional area of the projections is approximately equal to that of the valleys. The minute irregularities on the surface of the magnetic layer are produced by providing a non-magnetic substrate presenting different surface roughnesses on its front surface and back surface, and by transferring surface irregularities constituting the surface roughness of the back surface of the non-magnetic substrate to the front surface of the substrate.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: December 8, 1992
    Assignee: Sony Corporation
    Inventors: Takahiro Miyazaki, Minoru Yamaga, Tadahiro Abe, Tsutomu Ogawa
  • Patent number: 5168870
    Abstract: A defibrillator has a storage capacitor and a coil which are adapted for connection to biological tissue to form an RLC circuit through which a signal is discharged to the biological tissue. A measuring stage is coupled to the RLC circuit via a transformer for measuring selected characteristics of the signal. The coil is formed by a primary winding of the transformer, the primary winding thus providing the inductance for the RLC circuit. By incorporating the function of the coil into the transformer, the space necessary for a separate component is avoided and the overall structure can be made smaller.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: December 8, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Kohl
  • Patent number: 5168885
    Abstract: A power system module is provided for a dishwasher that has a common base upon which is mounted the power system components. A first and second pump, heater, thermostats, overflow sensor and a fill valve are all mounted on the common base. The base member also receives an enclosure thereon which protects the components. A simple securing device in the form of a clip is utilized to hold the enclosure and base in place over a trough forming two separate sumps, one for each of the pumps.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: December 8, 1992
    Assignee: Whirlpool Corporation
    Inventors: Jon D. Tromblee, Vincent P. Gurubatham
  • Patent number: 5169651
    Abstract: A method and apparatus for forming a fold line in a sheet of semi-rigid thermoplastic material including supporting the sheet on cylindrical rollers as the sheet is drawn forwardly along the creasing path through a creasing zone and applying a sequence of heated creasing rollers with each roller penetrating the surface of the sheet an increasing amount and immediately following the creasing by a caliper roller having shoulders for flattening the shoulders in the plastic formed beside the crease.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: December 8, 1992
    Assignee: Heiber & Schroeder GmbH
    Inventors: Wolfgang Heiber, Julius Schroeder-Frerkes
  • Patent number: 5169303
    Abstract: An ignition/reignition device for a gas burner which eliminates the isolation transformer of the prior art which includes a capacitive discharge curcuit which is connected to a high voltage transformer so as to provide ignition pulses to ignite a gas burner and which has a flame current amplifier and flame rectification sensors connected to the capacitive discharge circuit so as to control it so that spark discharges will occur if the burner has been turned on and such sparks will continue until ignition and wherein upon disappearance of the flame the sparks will again occur to reignite the burner.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: December 8, 1992
    Assignee: Capable Controls Co.
    Inventor: Paul D. Paluck
  • Patent number: 5169731
    Abstract: In a solid oxide fuel cell, a multiplicity of single cells are arranged one on each of multiple hollow portions, each single cell including confronting inner and outer electrodes separated by a solid electrolyte. The individual single cells are interconnected in series by multiple interconnections each extending from the inner electrode, at its portion contiguous to the substrate, of the respective one single cell to the outer electrode of the adjacent single cell through the electrolyte of the respective one single cell.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: December 8, 1992
    Assignee: Yoshida Kogyo K.K.
    Inventors: Takayoshi Yoshimura, Toshio Arai, Masaki Sato
  • Patent number: 5169377
    Abstract: A rotary centrifuge for the separation of substances at different density having an outer cylindrical housing and a worm within the housing and the worm and housing driven at different rotational speeds, the housing having an opening for the discharge of the heavier fraction with the opening controlled by an external control element preferably stationarily supported and connected by a linkage to a movable valve member for controlling the opening, preferably a ring which moves axially to change the size of an annular discharge gap between the ring and a circular discharge opening in the end wall of the drum, but the opening can also be in the form of axial radial facing openings controlled by a movable valve member.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: December 8, 1992
    Assignee: Kloeckner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Reinhold Schlip, Wolfgang Epper
  • Patent number: 5170079
    Abstract: A logic circuit which can operate to form a logic AND signal of a predetermined voltage level in accordance with a potential difference between a plurality of input signals using a collector dot AND circuit and a latched comparator circuit without the necessity of provision of a NOT circuit or a level shifting circuit at a preceding stage to the logic circuit. The logic circuit comprises a collector dot AND circuit, a logic level outputting circuit and a plurality of emitter follower circuits. Output electrodes of those of the emitter followers which are connected to receive NOT signals of input signals developed from the collector dot AND circuit are coupled commonly to form a wired OR circuit, and an output of the wired OR circuit is supplied to a transistor of the logic level outputting circuit connected to receive a logic AND signal of the input signals developed from the collector dot AND circuit so as to form a NOT signal of the logic AND signal.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: December 8, 1992
    Assignee: Sony Corporation
    Inventors: Yoshihiro Komatsu, Yuji Gendai
  • Patent number: 5169152
    Abstract: There is disclosed herein an enlarged and elongated hand grip for use with a golf club. The grip includes an elongated tubular body portion which is elliptically shaped. The body portion includes a flat in the front surface for use in grasping and aligning the club. The body also includes a lower end which includes a flat front portion and an arcuate back portion. This lower end shape is constructed to adapt to the shape of the lower hand so as to permit grasping and control of movement of the grip and club. A plurality of transverse alignment markings are provided on the flat for assisting the user in reproducible finger and hand positioning. Moreover, an alignment marker is provided adjacent the club head end of the grip which is to be generally aligned with the club shaft and head and for assisting the user in alignment of a putt.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: December 8, 1992
    Inventor: Mark R. Marquardt
  • Patent number: 5167051
    Abstract: A continuous row of interlocking fastener elements made of a plastic monofilament is used on a slide fastener. The coupling head of each fastener element has in its front face at the middle a groove extending longitudinally of the fastener element row and also has, one on its each side, a pair of opposed arcuate protuberances merging with the bottom of the groove and protruding longitudinally of the fastener element row.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: December 1, 1992
    Assignee: Yoshida Kogyo K. K.
    Inventor: Yoshihiro Kousaka
  • Patent number: 5168494
    Abstract: Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy. A pointer for positional identification in a frame is allocated to the first tributary unit in a tributary unit concatenation; instead of a pointer, the further tributary units receive a concatenation indicator. Every cross-connect equipment along a transmission link recognizes the tributary unit concatenation and forwards the tributary units thereof in the correct sequence. When a clock matching is required in the case of a first tributary unit, a pointer skip is initiated at all further tributary units. This requires hardware and software. This is eliminated when all tributary units (TU-12.sub.1 through TU-12.sub.5) containing the broadband signal (DSa) have a pointer (PTR1 through PTR5) having the value of the positional identification of the first tributary unit (TU-12.sub.1) allocated to them. The individual tributary units (TU-12.sub.1 through TU-12.sub.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: December 1, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventor: Horst Mueller
  • Patent number: 5167405
    Abstract: A fast change set-up device for work on work supports wherein work blanks can be mounted to a number of work supports prior to machining and the upper work support can be quickly attached to a lower work support and locked thereto by rotating a handle so that the next piece can be machined. The shaft carries four cams for driving spring biased bolts which engage in grooves formed in locking pins and the cams have an indentation for locking the bolts in the grooves to hold the upper and lower work supports together so that machining can occur. After machining the upper work support can be removed from the lower work support and a second upper work support can be mounted to machine another workpiece.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: December 1, 1992
    Assignee: Midaco Corporation
    Inventor: Michael P. Cayley, Jr.
  • Patent number: 5167722
    Abstract: A method for rinsing a textile wash load is provided for use in a vertical axis washing machine in which a plurality of initial spray rinses are used in which the released water is discharged directly to drain and a plurality of subsequent spray rinses are used in which the water is recirculated through the spinning clothes load for a predetermined length of time before being discharged to drain. Enhanced detergent and soil removal with less water usage is achieved with this method.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: December 1, 1992
    Assignee: Whirlpool Corporation
    Inventors: Jim J. Pastryk, Nihat O. Cur, Anthony H. Hardaway, John W. Euler
  • Patent number: 5168556
    Abstract: A method and circuit for reducing the load of the microprocessor unit of a microprocessor controlled, serial interface circuit. The transmission side of the interface circuit has a first auxiliary stage that, dependent on the presetting by the microprocessor unit generates a control bit stream and transmits a data bit stream from a serial bit stream converter stage. A self-generated data bit stream generates prompter signals for the microprocessor unit and the reception side of the interface circuit has a second auxiliary stage that recognizes message changes over a predetermined time period and generates a prompter signal when the message change occurs.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: December 1, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karoly Lajtai, Josef Fenzl
  • Patent number: 5167052
    Abstract: A lockable slider for a slide fastener comprises a slider body having a guide channel, a cover member having an elongate aperture, a locking member, and a switching means movable in the aperture between a first position in which to advance the locking member into the guide channel and a second position in which to retract the locking member away from the guide channel.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: December 1, 1992
    Assignee: Yoshida Kogyo K. K.
    Inventors: Tsunetaka Aoki, Shunji Akashi
  • Patent number: 5168487
    Abstract: An optical recording and/or reproducing apparatus comprising a light beam generator, a photodetector, an optical path forming device for causing a light beam from the light beam generator to impinge upon an optical disc and for guiding the light beam emanating from the optical disc to the photodector, and a signal generating circuit block operative to obtain based on a detection output obtained from the photodetector a first signal representing a tracking condition of the light beam in relation to a record track portion on the optical disc and a second signal different in phase by substantially ninety degrees from the first signal and to produce a tracking error signal which satisfies the following equation:St=Sl/{K.(Sl.sup.2 +S2.sup.2).sup.1/2+S2}where St stands for the tracking error signal, Sl stands for the first signal, S2 stands for the second signal and K stands for a constant equal to or more than 1.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: December 1, 1992
    Assignee: Sony Corporation
    Inventors: Kiyoshi Ohsato, Toshiki Udagawa, Hitoshi Okada
  • Patent number: 5168019
    Abstract: A nonaqueous electrolyte secondary battery includes a cathode of a carbon material that can be doped or undoped with lithium, an anode of a primary active material composed of a composite oxide of lithium and cobalt, the cathode and the anode being disposed in a casing. LiPF.sub.6 is dissolved in a solvent of propylene carbonate and 1,2-dimethoxyethane, and a powder of Al.sub.2 O.sub.3 is dispersed in the solution. The dispersion is poured as an electrolytic solution in the casing.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: December 1, 1992
    Assignee: Sony Corporation
    Inventor: Naoyuki Sugeno
  • Patent number: D331646
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: December 8, 1992
    Inventor: Johannes M. W. Weelink