Patents Represented by Law Firm Ladas, Parry, Von Gehr, Goldsmith & Deschamps
  • Method of making a blistered silicate material
    Patent number: 4119434
    Abstract: A process for the manufacture of a blistered silicate material having a high content of wollastonite and a low content of cristobalite and containing up to 30 to 40 percent by volume of fine blisters the size of a majority of which are 0.1 to 1mm with a substantial proportion being below 0.1mm wherein raw materials for the silicate material are introduced partly at the upper end of an inclined rotary kiln and partly at the lower end of the rotary kiln, whereby the materials will be distributed in the burning zone and melt.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: October 10, 1978
    Inventor: Karl Kristian Kobs Kroyer
  • Optical glass
    Patent number: 4119471
    Abstract: An optical glass consisting basically of a B.sub.2 O.sub.3 -- SiO.sub.2 -- La.sub.2 O.sub.3 -- ZrO.sub.2 -- TiO.sub.2 -- ZnO -- BaO system can be produced at a lower melting temperature and in a shorter melting time than it has heretofore been possible by replacing Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5 and WO.sub.3 used in the conventional optical glasses with ZnO.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: October 10, 1978
    Assignee: Kabushiki Kaisha Ohara Kogaku
    Inventors: Fujio Komorita, Muneo Nakahara
  • Pump for variable dosing
    Patent number: 4118152
    Abstract: A variable dosing piston pump having a cylinder made of two parts, the fixed part through which the piston rod extends and a part adapted to be inserted more or less within said fixed part and means to fix said parts relative to each other, an outlet in said fixed part for the dosed liquid, an inlet controlled by a non-return valve in said movable part, the piston having a diameter adapted to that of the movable part and comprising a non-return valve. By changing the positions of the two cylinder parts relative each other, and retaining the same piston movement, the effective stroke of the piston is changed, thereby changing the dosing.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: October 3, 1978
    Inventor: Dan Bron
  • Pole claw member for a dynamo electric machine rotor
    Patent number: 4117793
    Abstract: A method of manufacturing a pole claw member for a dynamo electric machine comprises in a first embodiment forming a serrated longitudinal edge in a ferrous strip and bending the serrated strip to form a cylinder with the serrations extending axially. The ends of the strip are then secured together by welding, rivetting or by a tang and aperture connection to produce a coronet form. The coronet form is then deformed in one or more, preferably three, die forming steps to produce the desired shape of claw and to define an annular base at the end of the cylinder.In an alternative embodiment, the coronet form is produced by punching out portions of a previously formed tube and is then deformed as in the first embodiment.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: October 3, 1978
    Assignee: Lucas Industries Limited
    Inventors: Kenneth Preece, Walter Graham Cheary
  • Chromium base alloy composite materials reinforced with continuous silicon carbide fibers and a method for producing the same
    Patent number: 4117565
    Abstract: Chromium base alloy composite materials having high corrosion resistance, idation resistance and tensile strength at high temperatures are produced by laminating and arranging silicon carbide fibers containing 0.01-20% by weight of free carbon, which have been produced by the specific method already disclosed in U.S. patent application Ser. No. 677,960, in volume fraction of 2-50% in chromium base alloy and by compressing and sintering the assembly.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: October 3, 1978
    Assignee: The Foundation: The Research Institute For Special Inorganic Materials
    Inventors: Chiaki Asada, Katsushi Kusaka, Hisashi Kajima
  • Mixed esters of polyols
    Patent number: 4118583
    Abstract: Therapeutically active compounds of the general formula: ##STR1## wherein Ac.sub.1 is a first acyl group, Ac.sub.2 is a second acyl group different from Ac.sub.1, A is a C--C bond or a divalent organic residue; R.sub.1, R.sub.2 are a hydrogen atom or a lower alkyl group, R.sub.1 and R.sub.2 together being able to take part in the formation of a ring having up to 6 atoms, A, R.sub.1 and R.sub.2 may be substituted by -OH groups esterified or not by acyl groups.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: October 3, 1978
    Assignee: Laboratories om Societe Anonyme
    Inventors: Pierre Baudet, Jean-Paul Ricard, Adrian Schulthess
  • Digital measuring instruments
    Patent number: 4117320
    Abstract: A digital instrument produces a continuous digital readout representative of the linear movement of a member positioned by a rotatable shaft. The instrument comprises equally spaced markings formed on an element carried by a bushing intended to be secured to the shaft. Sensing means cooperate with the markings and produce an output pulse in response to the passage of a marking past the sensing means. The output pulses are counted by a reversible digital counter the count of the counter being displayed by digital display means. The electronic circuitry is carried by two printed circuit boards each of which supports a bearing for the bushing. A fixed casing fixedly supports the sensing means, the counter, the display means and the printed circuit boards.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: September 26, 1978
    Assignee: Carson (Instruments & Equipment) Limited
    Inventors: Ernest Valdur Tomlinson, Charles Nicholas Carne
  • Silicon carbide sintered moldings and a method for producing the same
    Patent number: 4117057
    Abstract: Silicon carbide sintered moldings having a high flexural strength and various excellent properties are produced by mixing SiC powders or SiC fibers with a binder or organosilicon low molecular weight compounds or organosilicon high molecular weight compounds, molding the mixture into a desired shape and heating the molded mixture at a high temperature.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: September 26, 1978
    Assignee: The Research Institute for Iron, Steel and Other Metals of the Tohoku University
    Inventors: Seishi Yajima, Josaburo Hayashi, Mamoru Omori
  • Nitrogenous condensation products
    Patent number: 4117231
    Abstract: Nitrogenous condensation products and hydrolysis products thereof are provided wherein the condensate of a fatty acid and diamine is reacted with an unsaturated dicarboxylic acid or a partial ester thereof; optionally the product of such a reaction or a similar product obtained from an unsaturated monocarboxylic acid is further reacted with a halocarboxylic acid. The unhydrolyzed products can be formulated as imidazolines.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: September 26, 1978
    Assignee: The Miranol Chemical Company, Inc.
    Inventor: Arvid Christiansen
  • Gum brush for infants
    Patent number: 4115893
    Abstract: A gum brush has an elongated handle with a stem end, to which is secured a brush head having a bullet shape and provided therearound in symmetrically distributed arrangement several fin-like projections some of which are parallel to the handle and others are perpendicular to the handle, these projections and the brush head being made of a rubberlike material such as cis-1,4-polyisoprene. In use, the brush head and projections are placed in an infant's mouth and moved at random or are chewed by the infant. As a result, the infant's teeth are cleaned, and, at the same time, its gums are firmed and strengthened.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: September 26, 1978
    Assignee: Pigeon Kabushiki Kaisha
    Inventors: Yuichi Nakata, Tadayoshi Murakami
  • Gas separation process and treatment of a gas in a gas separation process
    Patent number: 4113448
    Abstract: Treating fluid of a single phase by feeding a stream of it into a passage so that its composition varies in a known fashion regarding a specific property over a cross-section of the stream transverse to its direction of flow. The stream is moved along the passage and parts of the stream having different compositions are separated before the variation disappears.Fluid treatment apparatus defines a passage forming at least part of a circuit. The circuit has an inlet and an outlet and means for causing flow of a single phase fluid around the circuit, and for circulating at least part of the fluid more than once around the circuit, along a helix-like path.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: September 12, 1978
    Assignee: Atomic Energy Board
    Inventors: Pierre Cloete Haarhoff, Werner Adolf Schumann
  • Laser and its method of operation
    Patent number: 4114113
    Abstract: This invention relates to transversely-excited gas lasers, in which the gas may be at atmospheric or greater pressure and in which the gas is excited by means of a distributed electric discharge between two electrodes. The electrodes, which are preferably elongate, are such that an initial trigger discharge occurs between minor trigger portions of the electrodes which conditions the discharge gap between the electrodes resulting in a distributed, preferably glow-type discharge, between the major portions of the electrodes causing lasing action in the gas. The trigger discharge preferably generates electro-magnetic radiation of high intensity to cause volume photo-ionization of the gas. The electrodes may be composite in form, each having a trigger electrode and a main discharge electrode that are directly electrically connected to each other.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: September 12, 1978
    Assignee: The South African Inventions Development Corporation
    Inventors: Victor Haim Hasson, Hubertus Michael VON Bergmann
  • Apparatus for the use in the construction of electric circuits
    Patent number: 4112593
    Abstract: The invention relates to circuit boards and educational and experimental equipment made therefrom in which electronic components can be plugged into the board. The board comprises a matrix having a number of apertures in each of which is received a monolithic cluster member having a central socket to receive a prong of an electronic component and four smaller sockets to receive projections on connector links. Spacers on the cluster member engage collars on the prongs to space the component housings off the links.
    Type: Grant
    Filed: September 7, 1977
    Date of Patent: September 12, 1978
    Inventors: David Arthur Hill, Abraham Lomnitzer
  • Optical glass
    Patent number: 4111707
    Abstract: An optical glass consisting essentially of a B.sub.2 O.sub.3 -SiO.sub.2 -La.sub.2 O.sub.3 -Gd.sub.2 O.sub.3 -Y.sub.2 O.sub.3 system and additionally containing ZrO.sub.2 has high refractive and low dispersive characteristics and is free of a poisonous thorium oxide ingredient.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: September 5, 1978
    Assignee: Kabushiki Kaisha Ohara Kogaku Garasu Seizosho
    Inventors: Fujio Komorita, Nobuhiro Nozawa, Satoshi Inoue
  • Apparatus for driving piles
    Patent number: 4110993
    Abstract: An apparatus for driving piles into the sea-bottom for the support of a substructure resting on the sea-bottom of a working island to be installed comprises a plurality of support constructions attached to a column. Each support construction is provided with guide passage openings for the piles and the followers. The uppermost support construction consists of an arm which extends transversely of the column, and two semi-circular claw segments secured to the free end of the arm. One of the claw segments is pivotally mounted so that the claw segments can be brought into a closed position in which they define a guide passage opening for the pile or follower.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 5, 1978
    Assignee: Panama Overseas Shipping Corporation Inc.
    Inventor: Pieter Schelte Heerema
  • Wall mounted actuator for aerosol can
    Patent number: 4111338
    Abstract: A wall mountable holder to dispense the contents of an aerosol can, the holder comprising an outer casing of two parts dimensioned to contain within it a pressurized can, the two parts of said container being pivotally attached at their upper end and having projections to engage the dispensing nozzle of said can so that upon relative movement of said two parts toward each other beyond a predetermined position said means cause movement of said nozzle to thereby release contents from within said can.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: September 5, 1978
    Assignee: 3C Chemical Laboratories Pty. Limited
    Inventors: Robin Cheng, Kenneth MacLean Cross
  • Process for the preparation of 3,4,5-trimethoxy-phenyl-(1,4-dimethyl-1,2,3,6-tetrahydro-2-pyridyl)-carb inol
    Patent number: 4111945
    Abstract: 3,4,5-TRIMETHOXY-PHENYL-(1,4-DEIMETHYL-1,2,3,6-TETRAHYDRO-2-PYRIDYL)-CARBIN OL, AND ACID ADDITION SALTS THEREOF, USEFUL AS ANALGESICS, AND THEIR PREPARATION ARE DISCLOSED.
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: September 5, 1978
    Assignee: Laboratories Made, S.A.
    Inventors: Ricardo Granados Jarque, Juan Bosch Cartes, Jorge Canals Cabiro, Cristobal Martinez Roldan, Fernando Rabadan Peinado
  • Electronic musical instrument
    Patent number: 4111092
    Abstract: In an electronic musical instrument a key touch signal is generated in response to the operation of a key, and a plurality of control signals having different waveforms are produced from the key touch signal.Different control signals are used for independently controlling at least two of a plurality of musical tone elements that determine the tone pitch, color and volume of the musical tone generated by the musical instrument.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: September 5, 1978
    Assignee: Nippon Gakki Seizo Kabushiki Kaisha
    Inventor: Takeshi Adachi
  • Air induction system for an internal combustion engine
    Patent number: 4111163
    Abstract: The invention provides an air induction system or manifold for a multi-cylinder internal combustion engine, which is arranged in two parts, the first having portions of the induction passages for each cylinder formed therein, and the second attached to the first to form a housing therewith in communication with each of the induction passages, at least the first part being arranged so that it may be pressure die cast in manufacture.
    Type: Grant
    Filed: July 22, 1975
    Date of Patent: September 5, 1978
    Assignee: Bayerische Motoren Werke AG
    Inventors: Georg Ederer, Adolf Fischer, Paul Rosche, Helmar Troll, Wolfgang Wurst, Helmut Hengl, Jiri Seidl
  • Bearings
    Patent number: 4111498
    Abstract: The present invention relates to a bearing having at least two bearing surfaces provided with a clearance therebetween, the clearance being filled with a fluid mixture which provides a heavily damped viscous-drag on the bearing surfaces during slow relative movement of the surfaces and a substantially free-slipping movement of the surfaces upon a suddenly increased force being applied to the surfaces.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: September 5, 1978
    Inventor: Robert Eric Miller