Patents Represented by Law Firm Schuyler, Birch, Swindler, McKie & Beckett
  • Backhoe-mounted shear
    Patent number: 4058915
    Abstract: The device comprises a shear adapted to be mounted to the boom of a backhoe or like machinery with relatively movable members and be actuated by a powered, movable member of the backhoe. The shear comprises a generally U-shaped support member adapted to be disposed about the top of the backhoe boom. The shear also includes a pivotally mounted cutter head adapted to engage an anvil section attached to the support member to shear an item such as a metal member inserted therebetween. A cutter head is actuated by the backhoe movable member and is pivotally returned to a raised position after a shearing operation by a biasing means connected to the cutter head.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: November 22, 1977
    Assignee: Wittwer Construction Company
    Inventor: Leon M. Hake
  • Pharmaceutical preparation for oral cavity administration
    Patent number: 4059686
    Abstract: A pharmaceutical preparation of oral cavity administration, characterized by being a mixture of a pharmacologically active agent, a pharmaceutical carrier, and sodium polyacrylate, in conventional dosage form. It has advantages in that it adheres strongly to local site and dissolves gradually over a prolonged period of time while releasing appropriate amounts of the active agent.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: November 22, 1977
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Wataru Tanaka, Eiichiro Akito, Koichi Yoshida, Takashi Terada, Hiroshi Ninomiya
  • Computer accounting system
    Patent number: 4059748
    Abstract: There is disclosed an accounting system comprising a computer, an insertion device for receiving and printing on a card and including means for writing information on and reading information from a magnetic track on the card. A control unit operates in conjunction with the computer to control feed of the card in the insertion device and the said writing and reading operations, and to detect the occurrence of errors in the reading or writing. A register is arranged to count the number of times that a reading or writing operation has been performed. When an error is detected the computer repeats the operation until either the operation is performed without an error being detected or the register indicates that the operation has been repeated a predetemined number of times.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: November 22, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventor: Ettore Violino
  • Differential amplifier
    Patent number: 4059809
    Abstract: A differential amplifier constructed from at least two metal oxide semiconductor (MOS) transistors is described. Input voltages are individually applied to the control electrodes of the transistors. The source-drain paths of the transistors are connected in series at a common junction point, and the other terminals thereof are connected to a supply voltage. The differential output voltage is taken from the aforementioned common junction point.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: November 22, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Frithjof V. Sichart
  • Method for transferring data into a data input during a telephone connection established over an interoffice trunk
    Patent number: 4059734
    Abstract: A method of operating a switching arrangement for a telephone system is described which permits the seizure of data input equipment in an exchange during a telephone connection between two exchanges. Provision is made for dialing a code number after connection of the central control and repeater and controlling the initial and final instants of loop interruption to the other switching center. This initiates operation of the central control at the end of a time lag switching through the interoffice trunk for the transfer of data.
    Type: Grant
    Filed: October 21, 1975
    Date of Patent: November 22, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Robert Vanderbusse
  • Method of producing a tantalum thin film capacitor
    Patent number: 4058445
    Abstract: A method of producing thin film tantalum capacitors having a tantalum thin film electrode mounted on a nonconducting support member is described. The tantalum electrode is doped with nitrogen to produce a nitrogen content in a range from the nitrogen content of .beta. tantalum to that for tantalum nitride. A tantalum pentoxide film with dielectric properties is grown on the tantlum electrode by oxidation. At least, the tantalum electrode and the dielectric are subjected to tempering. The dielectric is then covered with another electrode.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: November 15, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Wilfried Anders
  • System for introducing the instructions of a program into a programmable office machine
    Patent number: 4058707
    Abstract: A system for introducing the instructions of a program into an accounting or similar programmable office machine comprises a drum mounted rotatable into a container and carrying at its periphery a plurality of removable and programmable code bars. A feed mechanism and a reading unit are disposed into the office machine for rotating step by step the drum with respect to the container to bring serially the code bars in front of the reading unit. A locking mechanism locks the container into the office machine during the reading cycle. At the end of the reading of the program the locking mechanism is released allowing the container to be removed from the office machine.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: November 15, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventors: Nicolo Giolitti, Sergio Garberi
  • Apparatus for direct line switching
    Patent number: 4058684
    Abstract: Apparatus is described for use in centrally controlled telecommunication switching systems having direct line service facilities. A direct line key, via a direct line repeater, is directly connected to a specified direct line station. Through operation of an exchange key, e.g., at a switchboard, the link connecting process to the direct line station is begun using a connecting path which is ready for seizure.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: November 15, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventors: Artur Nagel, Roland Wissaert
  • Magnetic information carrier having both ends free and apparatus for writing on and/or reading it
    Patent number: 4058847
    Abstract: A magnetic information carrier comprises a support or base strip made, for example, of plastic material or of light metal, on which a layer of magnetizable material is deposited.The support is pretensioned so as to assume at rest a stable configuration following a spiral path, without the auxiliary of a central core. This carrier is written on and/or read by an apparatus comprising a first cavity on which the carrier is placed. The carrier is fed by a capstan in front of a magnetic head and is pushed into a second cavity of the apparatus, wherein the carrier winds itself following a spiral configuration similar to the initial one. In a second embodiment, the carrier is mounted in a removable cartridge having one or two cavities.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: November 15, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventor: Gian Luigi Ponzano
  • Log transporter
    Patent number: 4057262
    Abstract: A transporter comprising a pair of spaced hoops interconnected by a plurality of generally U-shaped spokes extending inwardly from the inner diameter of the hoops to form a central, generally circular opening. In order to provide a load carrying enclosure, band means such as ropes, chains, or cables are wrapped substantially around the central portions of the spokes. An opening is provided between any two adjacent spokes by not extending the bands entirely around all the spokes so that items may be placed into the load carrying enclosure. When the enclosure is full a load retaining means such as a tightener is fastened across the opening to pack the items together tightly and render them ready for transportation by rolling the transporter along a surface.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: November 8, 1977
    Inventor: William David Boon
  • Apparatus for correcting distortion in low frequency cable
    Patent number: 4056791
    Abstract: Apparatus for correcting attenuation distortion in low frequency cable carrying a base-band signal from a transmitter to a receiver is described. A measuring device produces an indicating signal having a value dependent on the peak value of the base-band signal appearing in the region of the receiver. The receiver contains an amplifier, the gain of which is controlled by a RC element. The indicating signal is used to regulate the gain of the amplifier so that the cable and the amplifier together produce a substantially constant attenuation characteristic within a given low frequency range.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: November 1, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reiner Lohmann, Volker Ludwig
  • Reversible analog to digital converter
    Patent number: 4056820
    Abstract: A switching arrangement for converting analog signals into digital signals, and vice versa, is described. Conversions between pulse amplitude modulated (PAM) and pulse code modulated (PCM) signals are performed. In telecommunication systems having subscriber stations equipped to transmit and receive analog signals it is necessary to carry out these conversions to facilitate PCM transmission. An analog to digital converter is thus provided at each subscriber station for converting received digital signals into analog signals and analog signals to be transmitted into digital signals; the converter utilizes the iterative principle.
    Type: Grant
    Filed: July 27, 1976
    Date of Patent: November 1, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ernst Hofer
  • Textual processing system utilizing display aided associative searching feature
    Patent number: 4056821
    Abstract: A textual processing system having a keyboard for entering textual information and for conditioning the system into a plurality of modes of operation including a search mode. The system also includes a record unit for recording and reading out textual information, on and from, respectively; a record medium; a printing unit for printing textual information; a display unit for displaying textual information; and a control unit connected to the above units. The control unit, during the search mode of operation, controls the record unit and the display unit for searching a group of textual information, entered from the keyboard, among the textual information stored on the record medium. The control unit displays the group of textual information entered from the keyboard and displays a predetermined fixed portion of the textual information containing the group of textual information found by the search.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: November 1, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventor: Vittore Vittorelli
  • Rotary engine
    Patent number: 4055156
    Abstract: An internal combustion engine of the rotary type having an elliptical housing within which charge-carrying pistons move. The engine includes a stationary central portion having an elliptical outer surface about which the pistons move. A pair of gate valves slide longitudinally of the central portion, dividing the working chamber into separate compression and expansion zones. A gear system maintains a particular orientation of the pistons. The valves are interconnected to open and close at the proper time to allow the pistons, with the trapped, compressed fuel-air charge carried therein, to pass from the compression zone to the expansion zone.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: October 25, 1977
    Assignee: Gundlach, S.A.
    Inventor: Hugo A. Teran Salguero
  • Electrothermal print head
    Patent number: 4055743
    Abstract: A removably mountable electrothermal print head for writing dots-matrix characters while moving along a thermosensitive recording medium and a mounting for the hand or a movable carriage of a printer, the head comprises a plurality of electrically energizable resistive printing elements coated on a support; the outer surface of said elements is partly cylindrical with the generatrices in parallel relation with a common direction which is transversal with respect to the printing line of the recording medium. The print head is positioned with respect to the recording medium with the part-cylindrical outer surface of the resistive printing elements in tangential relation with the recording medium. The printing head is positioned on and removably fixed to the carriage by a manually actuatable latch.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: October 25, 1977
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventors: Renato Conta, Lucio Montanari, Riccardo Brescia
  • Production of glass fibres
    Patent number: 4054434
    Abstract: The disclosed invention pertains to a process for melting glass in which scrap glass fibers containing carbonaceous material to provide a carbon content of 0.4%-0.04% in a batch is combined with batch materials in which the scrap amounts to 5%-25% by the weight of the batch. The batch is melted under oxidizing conditions and the resultant melt is used to form glass fibers.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: October 18, 1977
    Assignee: Fibreglass Limited
    Inventors: John Stuart Thomas, Allan Frank Mason
  • Process for the gaseous phase production of metal oxide particles
    Patent number: 4053577
    Abstract: Process and apparatus for the production of finely-divided metal oxides by the oxidation of the corresponding metal halide wherein a secondary gas is introduced into a heated primary gas through apertures in the reaction zone wall, the apertures formed with at least two different cross-sectional areas along their length, the small cross-sectional area being at the inlet end of the aperture for the secondary gas.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: October 11, 1977
    Assignee: Tioxide Group Limited
    Inventor: Kenneth Arkless
  • Digital signal level comparison device
    Patent number: 4053870
    Abstract: A digital level comparison device having a digitally controlled switching network for adding or removing attenuation from a signal channel is described. The device includes a binary counter having an input for pulses corresponding to the received signal level and a timing input for receiving clock pulses corresponding to a predetermined nominal level. The counter is graduated in stages, each of which has an output leading to the aforementioned switching network. Within each stage interval, on one side thereof, there is a first additional interval, and on the other side of that stage interval there is a second additional interval. If the counter reading falls within a first additional interval the predetermined nominal level value is reduced by a given value, and if the counter reading falls within a second additional interval the nominal level value is increased by a given value.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: October 11, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Werner Noe
  • Modular logic circuit for performing different logic functions
    Patent number: 4053793
    Abstract: A modular logic circuit capable of performing a plurality of different logic functions is described. A first portion of the modular circuit containing logic elements receives input pulse signals and, responsive to signals received from a control circuit forming a second portion of the modular circuit, produces an output pulse having time position and/or length relationships to the input pulses which are functions of the values of the signals from the control circuit. A third portion of the modular circuit receives input pulses having no relationship to the inputs to the first portion; logic circuits in the third portion receive the latter input pulses and signals from the control circuit and produce another output signal the length and/or time position of which in relation to the input pulses is determined by the signals from the control unit.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: October 11, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfram Ernst, Josef Rohrig, Gerhard Renz
  • Transducers
    Patent number: 4052900
    Abstract: A transducer having a primary coil and at least one secondary coil wound on a hollow support with a number of electrically conducted links axially spaced along the secondary coil with the links connecting spaced turns of the secondary coil so that the transducer when in use has an output of desired form. The transducer is particularly useful for producing an output voltage from which the position of the core and anything connected to it can be deduced.
    Type: Grant
    Filed: January 9, 1976
    Date of Patent: October 11, 1977
    Assignee: Tioxide Group Limited
    Inventor: William Ganderton