Patents Represented by Law Firm Hall and Houghton
  • Patent number: 4132563
    Abstract: An intraleucospheruloid/organic color pigment composition and a process for producing the same: the intraleucospheruloid/organic color pigment composition consisting essentially of (a) intraleucospheruloid pigment consisting essentially of spheruloids of essentially transparent polymer material, preferably cross-linked to essential insolubility in any physical solvent, having primary particles of an average size not exceeding 4 microns in diameter which have embedded therein particulate leuco pigment composition consisting essentially of inorganic opaque white and/or transparent white pigment material having a different refractive index from that of the polymer and primary particles of an average size not exceeding 0.2 micron in diameter; and (b) organic color pigment material consisting of organic color pigment composition having primary particles of an average size of less than 0.2 micron in diameter; said combination of (a) and (b) being in a weight ratio of from 1:100 to 100:1.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: January 2, 1979
    Assignees: Marion Darrah, Joseph Y. Houghton
    Inventors: Oliver W. Burke, Jr., deceased, Victor T. Humphreys
  • Patent number: 4132562
    Abstract: An intrachromospheruloid/inorganic pigment composition and a process for producing the same: the intrachromospheruloid pigment consisting essentially of (a) spheruloids of essentially transparent organic polymer material preferably cross-linked to essential insolubility in any physical solvent, having primary particles of an average size not exceeding 4 microns in diameter which have embedded therein particulate organic color pigment composition consisting essentially of organic color pigment material having primary particles of an average size not exceeding 0.2 micron in diameter and (b) an inorganic leuco pigment component combined with (a) to provide light reflectivity to the combination. In the process for its production, the organic color pigment material is reduced to an average particle size of 0.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: January 2, 1979
    Assignee: Marion Darrah and Joseph Y. Houghton, Co-trustees
    Inventors: Oliver W. Burke, Jr., deceased, Victor T. Humphreys
  • Patent number: 4132564
    Abstract: An intraleucospheruloid pigment and a process for producing the same; the intraleucospheruloid pigment consisting essentially of (a) spheruloids of essentially transparent organic polymer material, preferably cross-linked to essential insolubility in any physical solvent, having primary particles of an average size not exceeding 4 microns in diameter which have embedded therein particulate leuco pigment composition consisting essentially of inorganic opaque white and/or transparent white pigment material having a different refractive index from that of the organic polymer and primary particles of an average size not exceeding 0.2 micron in diameter. In the process for its production, the inorganic pigment material is reduced to an average particle size of 0.2 micron or less, and preferably to between 0.2 to 0.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: January 2, 1979
    Assignees: Marion Darrah, Joseph Y. Houghton
    Inventors: Oliver W. Burke, Jr., deceased, Victor T. Humphreys
  • Patent number: 4132561
    Abstract: An intrachromospheruloid pigment and a process for producing the same: the intrachromospheruloid pigment consisting essentially of spheruloids of essentially transparent organic polymer material, preferably cross-linked to essential insolubility in any physical solvent, having primary particles of an average size not exceeding 4 microns in diameter which have embedded therein particulate pigment composition consisting essentially of organic color pigment material having primary particles of an average size not exceeding 0.2 micron in diameter. In the process for its production, the organic color pigment material is reduced to an average particle size of 0.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: January 2, 1979
    Assignees: Marion Darrah, Joseph Y. Houghton
    Inventors: Oliver W. Burke, Jr., deceased, Victor T. Humphreys
  • Patent number: 4131584
    Abstract: The strength of the bond obtained between substrates with the aid of phenoplasts, modified phenoplasts and/or epoxy resins, e.g. between fibrous material and an elastomer on vulcanization thereof, is improved by applying, to at least one of the substrates, in addition to a preformed phenoplast, modified preformed phenoplast, and/or preformed epoxy resin, and drying thereon before the assembly thereof with the other substrate, as an adhesion promoter, a quantity of m-aminophenol, which may be blended in a phenoplast adhesive, such as an RF dip or an RFL dip, or may be blended in the elastomer latex used for forming an RFL dip. Adhesive/promoter blends and latex/promoter blends for forming the same are also disclosed.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: December 26, 1978
    Assignee: Marion Darrah and Joseph Y. Houghton, Co-trustees
    Inventors: Oliver W. Burke, Jr., Barbara P. Hunt
  • Patent number: 4128796
    Abstract: There is disclosed a gap eliminator used for reducing working cycle time in machine tools. With over-all voltage variations in power sources in a factory taken into consideration, an output .function.(t.sub.0) under no or light load condition of an electric motor and an output k.function.(t) obtained by attenuating an output .function.(t) under loaded condition by an attenuator circuit are compared with each other to provide a primary signal, by which the feed rate is controlled. In this operation, particularly when an output obtained through a detecting circuit is an electric power, a circuit for eliminating periodic noise is disposed immediately after the electric power detector in order to eliminate adverse effects on power waves of periodic noise due to a belt. Further, abnormal overload condition is detected to provide a secondary signal, by which the machine is brought to a stop. Other merits and details of the arrangement will be made clear.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: December 5, 1978
    Assignee: NTN Toyo Bearing Company Limited
    Inventors: Yasuji Ohashi, Yoichiro Mitani
  • Patent number: 4128406
    Abstract: A processing method and apparatus are provided in which flows of a plurality of phases, at least one of which is a liquid phase, are intimately contacted and subjected to centrifugal force by being passed as a cocurrent turbulent flow circumferentially, axially, and inwardly and outwardly through sets of openings in the walls of one or more cylindrical chambers having first and second elements coaxially positioned in a housing, the openings being provided with flow guide means for directing said cocurrent flows in the same circumferential direction at all times, and the axial direction of passage of said cocurrent flows in preferred embodiments of the invention being non-ascending and hence not counter to the force of gravity.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: December 5, 1978
    Assignee: Deuterium Corporation
    Inventor: Jerome S. Spevack
  • Patent number: 4128216
    Abstract: A retainer shim in the form of a film to be placed on each of the front and back sides of a tape when the tape is received in a cassette case composed of a body and a lid, said shim being made of a self-lubricating synthetic resin material and substantially Y-shaped to avoid waste as much as possible from the standpoint of performance by design technique. Merits and details of the construction will be made clear.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: December 5, 1978
    Assignee: NTN Toyo Bearing Company Limited
    Inventor: Issaku Hioki
  • Patent number: 4125658
    Abstract: Apparatus in the form of a stencil, wet transfer material or dry transfer material is disclosed for marking characters on a surface. A set of character-defining indicia are provided on the stencil or transfer material and symbols having simple geometrical shapes are also provided to enable visually harmonious character spacing to be achieved. Some or all of the indicia have two or more spatially separated symbols so that character spacing can be related to the particular character pair combination being drawn or marked. Simple rules are provided for matching symbols to each other.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: November 14, 1978
    Assignee: Post Office
    Inventor: John S. Miles
  • Patent number: 4125768
    Abstract: A launcher for waves of selected mode in an optical dielectric waveguide having a core surrounded by cladding, in which the launcher includes a prism of refractive index greater than that of the waveguide and preferably greater than that of the core of the waveguide which is placed against the waveguide either before or alongside an outwardly tapering portion of the waveguide. Light from a laser is directed through the prism on to the waveguide to induce the waves in the waveguide. A matching fluid, which may set to a solid, improved the coupling of the prism to the waveguide. A detector of similar construction is also described, the tapering of the waveguide being inward.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: November 14, 1978
    Assignee: Post Office
    Inventors: Lynden A. Jackson, John E. Midwinter
  • Patent number: 4123751
    Abstract: Drive circuits for a flat panel display using a matrix of DC responsive phosphor dots are disclosed. Enabled row conductors receive a pulse of DC potential equal to +HV, whereas disabled row conductors receive +HV/.sub.2. Enabled column conductors receive zero potential, whereas disabled column conductors receive +HV/.sub.2. HV is in the range 90 to 140V. This allows semiconductor integrated circuit display drivers to be used in conjunction with the column conductors. Discrete transistor complementary-pair drivers are used for the row conductors. Scanning and character generation functions are achieved by the use of semiconductor integrated circuits. A pulse-width brightness control operates by selection of one of several logical combinations of the outputs of a counter. Two or four column driver circuits are provided to simplify high density connection problems and a divider circuit causes the column driver circuits to be addressed in sequence.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: October 31, 1978
    Assignee: The Post Office
    Inventors: David J. Gladstone, Peter A. Moldram
  • Patent number: 4123506
    Abstract: Certain impure streams, especially those from geothermal sources, are polluted with hydrogen sulfide, ammonia, carbon dioxide, other gases, and finely divided particulate solid matter in a form resembling dust or smoke. These contaminants reduce the efficiency of the steam as a heat transfer fluid, are detrimental to equipment utilizing steam as an energy source, and result in environmental pollution or expensive requirements for limiting the same. Herein so polluted steam is selectively processed in the gaseous state upstream of said equipment to remove hydrogen sulfide therefrom, with or without removing other pollutants, to recover valuable materials therefrom, and to improve the utility of the steam as an energy source. This is done by contacting a flow of the steam with aqueous liquid reactant media consisting essentially of one or more reactive compounds of certain metals which form solid metal sulfide reaction products and which preferably are electropositive with respect to hydrogen.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: October 31, 1978
    Assignee: Deuterium Corporation
    Inventor: Jerome S. Spevack
  • Patent number: 4121913
    Abstract: A liquid feed and effluent system to recover dissolved process gas (e.g. H.sub.2 S) from an effluent process liquid (e.g. water), which liquid may also contain dissolved solid components (e.g. soluble salts); the system heats the feed liquid with heat recovered from the effluent liquid, saturates the so heated feed liquid with process gas, which gas may also contain inert gas components, and separately discharges from the system such inert gas components and effluent liquid from which process gas and heat have been recovered. In the combination the dissolved process gas is preferably recovered from the effluent liquid by flashing at progressively reduced pressures and final vapor stripping thereof at the most reduced pressure.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: October 24, 1978
    Assignee: Deuterium Corporation
    Inventor: Jerome S. Spevack
  • Patent number: 4118790
    Abstract: Data processing equipment suitable for recording details of manually connected telephone calls has a plurality of operator stations with keyboards and VDU's connected in groups to operator's control units which respond to keyed instructions to obtain data from peripheral units storing such data and for recording on magnetic tape cartridge the details of the calls. The magnetic tape cartridge recording units are duplicated and the data to be recorded in the two units, which are separately generated and should be the same, are compared with one another and their validity checked. If both data are valid, whether they differ or not, they are recorded. If only one set of data is valid only the valid data are recorded by both recorders. A marker signal may be recorded to indicate that the data recorded may be incorrect.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: October 3, 1978
    Assignee: Post Office
    Inventors: Stewart Graham Cockett, Jeffrey Philip Taylor, Peter Craven, Alan Charles Farmer
  • Patent number: 4117592
    Abstract: A pair of garden shears are provided with the shears having laterally disposed branch retaining means for retaining a branch after it has been cut to prevent a scattering of the cut branches.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: October 3, 1978
    Inventors: Eizo Mori, Takao Mori
  • Patent number: 4116681
    Abstract: Ore pellets of homogeneous composition and loose consistency, free of pellet germs and having a reduced content of adhesive, are formed by dry mixing ore powder of particle size less than 90 microns (preferably about 65% less than 40 microns), with a moisture content of less than 0.1%, and powdered adhesive, e.g. bentonite, 0.05 to 1 percent by volume preferably added over a period of at least 11/2 minutes; then adding to the dry mix 8 to 9% of water at 50.degree. to 90.degree. C., and then homogenizing by a plowing action by which the mass is torn and whipped apart without being allowed to perform a strong rolling action, preferably for only 50 to 90 seconds at a temperature of 60.degree. to 70.degree., rubbing under pressure also being avoided, after which the mixture is formed into pellets with addition of 0.4 to 0.5% of water during the forming process. The formed pellets may be roasted, baked or sintered.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: September 26, 1978
    Assignee: Koninklijke Nederlandsche Hoogovens en Staalfabrieken N.V.
    Inventors: Herman Radstake, Nicolas A. Hasenack, Anthonie Van Latenstein, Jacobus J. Burger
  • Patent number: 4115316
    Abstract: This process relates to the preparation of stable aqueous latices from solvent dispersions of elastomers and other high polymer compositions. The process in common with that of earlier applications is characterized, inter alia, by the establishment of a flow of gas comprising steam as a continuous phase into which an emulsion of a cement of the polymer is dispersed as an aerosol of latex droplets in a solvent-vapor continuum, followed by coalescence of the latex droplets and separation of the resulting coalesced liquid phase from the resulting solvent-vapor phase.In the present disclosure, special provisions are made for generating from recovered water saturated with solvent (and possibly contaminated with carry-over of macromolecular material and/or emulsifier and/or latex droplets) the gas comprising steam employed in forming the initial continous phase.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: September 19, 1978
    Assignee: Exxon Research and Engineering Company
    Inventor: Oliver W. Burke, Jr.
  • Patent number: 4112062
    Abstract: A dual temperature exchange system, wherein, inter alia, the feed supply substance traverses selected portions of one of the two temperature zones, said selected portions being correlated with the availability and/or cost of a supply of the feed substance concerned is disclosed, and in connection therewith also disclosed is an improved system for humidification and dehumidification of a gaseous flow by effecting evaporation of a vaporizable liquid thereinto with the aid of heat recovered from the subsequent condensation from said gaseous flow of vaporized liquid carried thereby.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: September 5, 1978
    Assignee: Deuterium Corporation
    Inventor: Jerome S. Spevack
  • Patent number: 4110572
    Abstract: A method and apparatus for testing for forward echoes produced by signal transmission through a length of transmission line in which a succession of 1 ns pulses are applied to the line and the outward signals are multiplied by pulses delayed by a succession of discrete delay times. The products resulting from 65,500 pulses subjected to the same delay are integrated to eliminate the effects of thermal noise and the results for different delay times plotted against the delay time to produce a correlation curve in which the echoes appear as perturbations on the curve.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: August 29, 1978
    Assignee: The Post Office
    Inventor: Peter Cochrane
  • Patent number: 4107126
    Abstract: Improved insoluble vinylic filler pigment products and process for producing the same. The vinylic filler pigment consists essentially of (a) spheruloids of organic polymer material three dimensionally cross-linked to essential insolubility in any physical solvent and having primary particles in the colloidal size range of about 5 millimicrons to not more than 4.0 microns average diameter and having fixed onto the surfaces thereof from 0.5 to 200% by weight based on the spheruloids of (b) preformed microground insoluble organic and/or inorganic pigment material having an average particle size which is below 0.5 micron in diameter, and less than the average particle size of the vinylic filler spheruloids. The material (b) is intimately combined in aqueous dispersion with a never dried aqueous latex of the spheruloids, and the combination is then recovered.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: August 15, 1978
    Assignees: Marion Darrah, Joseph Y. Houghton
    Inventors: Oliver W. Burke, Jr., deceased, Victor T. Humphreys