Patents Represented by Law Firm Cameron, Kerkam, Sutton, Stowell & Stowell
  • Pulse width responsive security system
    Patent number: 4047107
    Abstract: A security system comprises electronic means for generating a group of pulses of predetermined frequency, which group has a unique identity specified by the particular durations of its constituent pulses; means for transmitting that group of pulses; means for receiving that group of pulses; and means responsive to that received group of pulses only when it has said unique identity. Preferably the pulses are bursts of high frequency waves, and the means responsive to received pulses includes means for establishing tolerance intervals for the ends of corresponding pulses.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: September 6, 1977
    Assignee: Ferranti Limited
    Inventor: Harvey Frank Dickinson
  • Sludge scraper mechanism
    Patent number: 4046700
    Abstract: An improved scraper to scrape the sludge from the bottom of a clarifying tank in a biological waste treatment plant. The scraper is Y-shaped, having two angularly spaced blades which move under the sludge at such an angle as to lift the sludge onto the blade such that the sludge urges the scraper in wiping relation with the bottom of the tank. The scraper is suspended by flexible cables from support arms which extend outwardly from an oscillating bridge moveable over the top of the clarifier in the clarifier tank drawing the flexible cables over support rollers as the bridge approaches the partition to lift the scraper upwardly as the scraper approaches the partition to prevent sludge from being trapped against the partition.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: September 6, 1977
    Assignee: Harsco Corporation
    Inventor: Nolan S. Glover
  • Assemblies including electrical interconnections
    Patent number: 4046441
    Abstract: An assembly includes two members, such as gyroscope gimbals, capable of limited relative rotation, and a flat, flexible conductor strip secured to the members, the axis of the strip extending between its securing positions wholly extending towards the common axis of rotation of the members the strip axis lying in a plane with the members at their mean relative orientation, and twisting as the members rotate therefrom.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: September 6, 1977
    Assignee: Ferranti Limited
    Inventor: David Murray Harley
  • Method and a device for thermal monitoring of a nuclear reactor core
    Patent number: 4045282
    Abstract: Thermal monitoring of a reactor core is carried out by utilizng coolant temperatures detected at the outlets of a plurality of fuel assemblies. The mean value of the "hot" and "cold" core outlet temperatures and the difference between these latter are established at each instant. An analog signal corresponding to the temperature difference between the coolant temperature at the outlet of said assembly and the mean core outlet temperature is delivered in respect of each fuel assembly. The signal is processed in order to initiate the appropriate safety actions.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: August 30, 1977
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Georges Barbier
  • Percutaneously inserted spinal cord stimulation lead
    Patent number: 4044774
    Abstract: A lead is disclosed for being inserted within a human or animal body for applying electrical stimulation to the spinal cord of the recipient, whereby selected pain is effectively relieved by the application of an electrical signal of selected frequency, pulsewidth and amplitude to the lead. In particular, the lead comprises a spherically-shaped, distal electrode adapted to be disposed near a selected segment of the spinal cord whereby maximum stimulation may be applied to the afferent nerves passing therethrough, a first conductor taking the form of a helically-wound coil extending from the distal electrode to a first tubular contact, and a second conductor disposed axially of the first-mentioned coil and forming an extension extending beyond the first-mentioned contact and terminated in a second tubular contact.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: August 30, 1977
    Assignee: Medtronic, Inc.
    Inventors: Terry Corbin, Duane J. Zytkovicz
  • Apparatus for detecting and processing errors
    Patent number: 4045661
    Abstract: The disclosure describes apparatus for handling detected errors in a data processing system. First means define and locate the detected errors and second means allow the attempted reexecution of the instruction being executed when the error is detected.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: August 30, 1977
    Assignee: Compagnie Honeywell Bull (Societe Anonyme)
    Inventors: Pierre Gabriel Antoine, Jean-Claude Marcel Cassonnet, Daniel Rene Vinot
  • Method of refining mattes containing nickel
    Patent number: 4045215
    Abstract: Nickel-containing mattes are desulphurized down to low sulphur levels (less than 1%) in a multi-stage process effected in a single converter vessel. In the first stage, an oxidizing gas is blown into the molten matte to reduce the sulphur level to about 4 to 7% and in one or more subsequent stages, oxygen and a diluent are blown into the matte, with a peripheral flow of protective fluid to protect the tuyeres against wear. The diluent, which may be argon or steam for example, dilutes the sulphur dioxide in the matte.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: August 30, 1977
    Assignee: Creusot-Loire
    Inventors: Pierre Leroy, Jean Georges Morlet, Jean Saleil
  • Molten fuel-salt reactor
    Patent number: 4045286
    Abstract: In a molten-salt reactor, a common vessel contains the reactor core, a neutron-moderating mass pierced by passages for the circulation of the fuel salt, at least one primary heat exchanger which is located close to the reactor core and through which the hot fuel salt passes after discharge from the core, pumps for circulating the cold fuel salt from the heat exchangers back into the reactor core. The free spaces defined within the reactor vessel between the core, the heat exchangers and the pumps except for the passages in which the molten fuel salt is circulated are packed with material which is compatible with the fuel salt.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: August 30, 1977
    Assignees: Electricite de France (Service National), Pechiney Ugine Kuhlmann
    Inventors: Jacques Marcel Blum, Michel Grenon, Edmond Ventre
  • Electronic multipliers
    Patent number: 4042815
    Abstract: A multiplier circuit arrangement comprises two parallel paths for the same signal, one of the paths being associated with signal level adjusting means; and means responsive to inbalance of d.c. components including any in said parallel paths, the inbalance being in accordance with a d.c. signal in a third signal path, to produce a control signal for varying the signal level adjusting means to reduce the imbalance, so that a.c. components in said parallel paths will be unbalanced to an extent proportional to the d.c. signal in said third path.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: August 16, 1977
    Assignee: Ferranti Limited
    Inventors: Kenneth Robson Brown, Colin Keith Sharp
  • Autonomous group for mechanical control of machines
    Patent number: 4040509
    Abstract: Motor rotated cams each actuate a lever and each lever is connected by a flexible non-extensible member, cable or chain, to the element of the machine to be controlled. A spring loaded bell crank lever is provided for each flexible non-extensible member and the non-extensible member passes over a pulley mounted at one end of an arm of the bell crank lever. Each arm of the bell crank lever actuates an electric switch connected to a motor whereby if the tension in the flexible non-extensible member increases or decreases excessively the appropriate one of the switches is opened to stop the motor.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: August 9, 1977
    Inventor: Jean Leon Missioux
  • Furnace having ceramic heating elements
    Patent number: 4041236
    Abstract: The central cavity of the furnace is provided from the periphery to the center with a first thermal insulation, at least one element of doped lanthanum chromite, a second thermal insulation and at least one element of stabilized zirconia or thoria which permits operation of the furnace at about 2000.degree. C.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: August 9, 1977
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Pierre Dumont, Alain Moise
  • Anti-manipulation device for permutation locks
    Patent number: 4040280
    Abstract: This invention is concerned with permutation locks having a wheel pack comprising a plurality of rotatable permutation discs, each having a recess which must be correctly aligned before the bolt of the lock can be withdrawn. One known method for determining the positions of the permutation discs is by analysis of X-radiation which has passed through the wheel pack parallel to the axis of rotation of the discs. In locks according to this invention, the opacity of the wheel pack to penetrating electromagnetic radiation along any line parallel to the axis of rotation of the discs is independent of their orientation.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: August 9, 1977
    Inventors: James Main, Leslie Robert Moss, Ralph Perryman
  • Manufacturing process of porous tubular members
    Patent number: 4041195
    Abstract: The manufacturing process of porous tubular members constituted by two coaxial layers comprises transferring of a layer intended to become the internal layer and being previously applied over a rigid core inside a tubular rough shape which is intended to constitute an external layer by compression of the rough shape over the core supporting the internal layer.
    Type: Grant
    Filed: February 8, 1972
    Date of Patent: August 9, 1977
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Pierre Dussaussoy
  • Money counting machine
    Patent number: 4041280
    Abstract: Money counting machine comprising a switch which produces signal pulses corresponding to the counted number of coins, a plural-digit counter which receives said signal pulses from the switch and produces bit signals corresponding to digits representing the counted coins together with sequentially produced clock pulses corresponding to particular digits, NAND gates connected with the counter allow an output to pass therethrough and through a selector switch when the selected number of coins are counted, said output being used to effect state change of a flip-flop circuit for terminating the money counting operation.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: August 9, 1977
    Assignee: Laurel Bank Machine Co., Ltd.
    Inventors: Kyoichi Ohsako, Katusuke Yamashita
  • Methods of manufacturing carrier supports for integrated chips and mounting of integrated circuit chips to a substrate
    Patent number: 4038744
    Abstract: A method of fabricating a carrier support for integrated circuit chips to be mounted subsequently on a substrate. A flexible strip of an inextensible insulating material is provided with equidistant openings in the center of each of which a chip is to be mounted. One of the faces of this strip is covered with a conductive film, the said film is cut away to form in each opening interface conductors which overhang towards the center of the opening. Before the conductive film is cut away, the film is coated with a layer of photosensitive lacquer which is partly removed to enable the film to be laid bare in regions which, in each opening, form part of an open-centered zone which surrounds that portion of the film in which the free inner ends of the interface conductors associated with this opening are to be produced.
    Type: Grant
    Filed: April 27, 1976
    Date of Patent: August 2, 1977
    Assignee: Compagnie Honeywell Bull (Societe Anonyme)
    Inventors: Jean Marie Cheype, Patrick Courant, Karel Kurzweil
  • Cautery protection circuit for a heart pacemaker
    Patent number: 4038990
    Abstract: A cautery protection circuit is disclosed for use with a heart pacemaker or generator circuit and comprises circuit elements for preventing those signals induced within the output portion of the heart pacemaker circuit by an electric field established by cautery procedures, from damaging the generator circuit or turning on the generator circuit at an undesired instant in time, whereby, otherwise, a pacemaker pulse signal may be generated to possibly induce fibrillation within the patient's heart.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: August 2, 1977
    Assignee: Medtronic, Inc.
    Inventor: David L. Thompson
  • Universal-joint assemblies and self-aligning thrust bearings, especially for the shafts of rotating machines
    Patent number: 4037887
    Abstract: A thrust-bearing and guiding assembly which permits limited angular displment of a rotating shaft in any axial plane while preventing axial translation motion of the shaft comprises a bearing support articulated within a stator housing. The bearing support has two spherical sliding zones which form part of spheres having different centers, one zone being adapted to cooperate with a complementary surface of a ring which is endowed with freedom of sliding motion in the transverse direction with respect to the axis of the rotor within the stator housing.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: July 26, 1977
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventor: Roger Louis Elysee Germain
  • Support structure for the lateral neutron shield system of a fast reactor core
    Patent number: 4038136
    Abstract: A hexagonal ring structure whose internal contour conforms to the external contour of the reactor core rests on the periphery of the reactor diagrid and is constituted by a plurality of layers of metallic plates. The layers are maintained in relative positional relation by means of clamping members, the plates of one layer being angularly displaced with respect to the plates of adjacent layers. The bottom end-connectors of the elements constituting the lateral shield system are fitted in vertical through-holes formed in the ring structure.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: July 26, 1977
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Bernard Gallet, Robert Venot
  • Convergence circuit mounting device
    Patent number: 4037256
    Abstract: A device for mounting a circuit board containing the convergence alignment circuitry for a color television receiver is described. The mounting device is made of a suitable insulating material and includes a collar or ring portion which is supported against the rear envelope of the color CRT by a plurality of integrally-formed leg members. A mounting board assembly is formed integrally with the collar or ring, extending upwardly therefrom for receiving a printed circuit board. The board mounting assembly includes first and second arms extending from the collar for receiving the lower or first edge of the circuit board and an upright support member extending therefrom, away from the collar, having at its remote end a flange from which extends a lip for retaining the upper or second edge of the printed circuit board.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: July 19, 1977
    Assignee: Admiral Corporation
    Inventor: Thomas A. Costa
  • Integrated magnetic head having alternate conducting and insulating layers within an open loop of two magnetic films
    Patent number: RE29326
    Abstract: The open-loop magnetic circuit of an integrated magnetic head for reading and/or writing is made up of two magnetic films which are joined together at one end, the other end being placed in proximity to the writing and/or reading surface and substantially at right angles thereto. In order to form the electric winding for writing and/or reading, the magnetic head comprises within said loop and in an alternate arrangement a succession of electrically conducting and electrically insulating film layers which are at least partially superposed in a direction substantially at right angles to the plane of the two magnetic films.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: July 26, 1977
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Jean Pierre Lazzari, Igor Melnick, Jean-Yves Valet