Patents Examined by R. Eugene Varndell, Jr.
  • Patent number: 4259223
    Abstract: Microspheres are produced by cobalt gamma radiation initiated polymerization of a dilute aqueous vinyl pyridine solution. Addition of cross-linking agent provides higher surface area beads. Addition of monomers such as hydroxyethylmethacrylate acrylamide or methacrylamide increases hydrophilic properties and surface area of the beads. High surface area catalytic supports are formed in the presence of controlled pore glass substrate.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: March 31, 1981
    Assignee: California Institute of Technology
    Inventors: Alan Rembaum, Amitava Gupta, Willi Volksen
  • Patent number: 4243709
    Abstract: Disclosed is a method for making camouflage from sheets of multi-colored coated fabric. The coated fabric is formed by sandwiching the base fabric between two films of fused polyvinyl chloride film; the two films are tightly bonded to the base fabric. Each film is formed by applying the different - colored plastisols to preselected portions of a carrier web, and then overcoating these colored portions of the web and any uncoated portions of the web with a plastisol of another color. After each of the two multi-colored films is created, they are bonded to the base fabric while the films are still attached to the carrier web; then each carrier web is stripped from the outsides of the finished multi-colored, coated fabric. These multi-colored coated fabrics are cut into sheets which are attached to a net to make the camouflage screen.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: January 6, 1981
    Assignee: Brunswick Corporation
    Inventor: Kenneth I. Morton
  • Patent number: 4233523
    Abstract: A pressure-sensitive device is proposed which includes an electrically conducting element in the form of a loop, a screen arranged outwardly of the loop, and a resiliently compressible, non-conducting material between the screen and element, the arrangement being such that, on the application of a loading to the screen, the electrical inductance of the loop is changed, such change being sensed by a reactance-dependent detecting circuit (DET) connected therewith.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: November 11, 1980
    Inventors: Lars Jarder, Bengt Ahlstroem
  • Patent number: 4229496
    Abstract: This is a decorative linkwork or mesh of interlinked parts which form a sheet for use as a decorative fabric. The linkwork is formed of small overlapping plates and interconnecting rings. Each plate has four outwardly extending arms which are formed into U-shaped hooks for engaging a respective connecting ring. At least one of the outwardly extending arms is relatively longer than the others and has a predetermined portion of its length folded back flat against the plate, resulting in a spacing between the edge of the plate and the beginning of the U-shaped hook formation of that arm.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: October 21, 1980
    Assignee: Friedrich Munch Silber-und Alpaccawarenfabrik
    Inventor: Oskar Striegel
  • Patent number: 4223499
    Abstract: The invention relates to a decorative stained glass insert unit which is attachable to an existing window unit to create an esthetically pleasing window treatment effect.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: September 23, 1980
    Inventor: Thomas R. Schrunk
  • Patent number: 4223062
    Abstract: A curl resistant transmissively readable photoplastic film is produced having a base ply of polyethylene terephthalate to one side of which is laminated, in sequence, a light transmissive layer of electrically conductive particles, a primer layer of a dimethyl-phenylene oxide polymer, and a photoplastic layer. The latter layer may be formed from a mixture of 75% by weight of an intermediate molecular weight (800-5,000) polystyrene and 25% by weight of a polymolecular plasticizer derived from alpha-methylstyrene to which mixture has been added about 3.3% of the total weight of solids of very fine particle size copper phthalocyanine. To the other side of the base ply is laminated a layer of a solvent deposited methyl methacrylate polymer. When the photoplastic layer is about 17 to 18 microns thick the methyl methacrylate layer may be about 4 to 6 microns thick.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: September 16, 1980
    Assignee: Bell & Howell Company
    Inventor: Francis P. Hession
  • Patent number: 4220677
    Abstract: The proposed polycrystalline superhard material comprises sintered particles of cubic boron nitride coated over the whole surface thereof with a layer of a crystalline compound of the chemical formula B.sub.x N.sub.y C.sub.z, where x, y and z can assume any value from 0 to 1, said compound binding together the particles of the cubic boron nitride.According to the present invention the proposed material is produced in the following way: particles of cubic boron nitride are placed in a flow of a gas containing carbon for a carbon layer 1-100 A thick to be built up on the whole surface of said particles. Then the particles of cubic boron nitride with the carbon layer built up over the whole surface of the particles are subjected to sintering at a temperature and under a pressure corresponding to the region of thermodynamic stability of cubic boron nitride.The herein-proposed material is highly uniform and features mechanical properties superior to those of the known cubic boron nitride materials.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: September 2, 1980
    Assignee: Institut Sverkhtverdykh Materialov Akademii Nauk Ukrainskoi SSR
    Inventors: Dmitry V. Fedoseev, Boris V. Deryagin, Valentin N. Bakul, Alexei I. Prikhna, Valentin K. Gerasimenko, Vladimir G. Poltoratsky, Jury I. Nikitin, Stanislav P. Vnukov, Valentin P. Varnin
  • Patent number: 4218507
    Abstract: Novel powders, and resinous compositions bearing said powders, characterized by excellent chemical stability, electrical conductivity, and energy-absorbing characteristics. These three characteristics can be utilized, alone or combination, in forming many novel articles including microwave shielding apparatus, magnetic recording media, explosives, and the like articles. The more advantageous powders are characterized by a very thin coating of an electrically conductive metal carbide, metal silicide, or metal boride upon the surface thereof, and a metal core.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: August 19, 1980
    Assignee: Graham Magnetics, Inc.
    Inventors: Robert J. Deffeyes, Grover L. Johnson
  • Patent number: 4218514
    Abstract: Improved waterless lithographic printing masters are provided having minimum background ink reflection density. The master comprises a crosslinked block copolymer containing elastomeric, ink releasing siloxane blocks chemically linked to organic image accepting thermoplastic blocks, said copolymer having a molecular weight for the organic blocks sufficient to provide strength and a background ink reflection density of less than 0.02 and preferably less than 0.01.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: August 19, 1980
    Assignee: Xerox Corporation
    Inventors: Thomas J. Pacansky, Alan B. Amidon
  • Patent number: 4211809
    Abstract: A self-adhering transfer material including one or more transferable design ayers, a lower adhesive layer and an intermediate layer of a polyester resin hardenable into a form-stable layer to act as a stabilizing and blocking layer.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: July 8, 1980
    Assignee: BSB Aktiengesellschaft fur Mechanische Beschriftung und Dekoration
    Inventor: Franz Barta
  • Patent number: 4211810
    Abstract: A self-adhering transfer material including one or more transferable design ayers, a lower adhesive layer and an intermediate layer of a polyester resin hardenable into a form-stable layer to act as a stabilizing and blocking layer.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: July 8, 1980
    Assignee: BSB Aktiengesellschaft fur Mechanische Beschriftung und Dekoration
    Inventor: Franz Barta
  • Patent number: 4209565
    Abstract: A self-adhering stencil in which a heat sensitive bonding resin is disposed as a coating on the uncoated tissue or incorporated in the stencil layer or disposed as a coating on either or both sides of the stencil layer.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: June 24, 1980
    Assignee: A. B. Dick Company
    Inventors: Abraham D. Davis, Kenneth W. Pinter
  • Patent number: 4207369
    Abstract: Powder compositions useful for making conductors, e.g. microcircuit conductors, end terminations for capacitors, electrodes for gas discharge display devices, etc. The compositions comprise inorganic powders dispersed in an inert vehicle and are printed and fired in the conventional manner on dielectric substrates. The inorganic powders comprise aluminum, silicon, and glass.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: June 10, 1980
    Assignee: Beckman Instruments, Inc.
    Inventor: Casimir W. Kazmierowicz
  • Patent number: 4206068
    Abstract: A drain cleaning composition is provided consisting essentially of 20 to 60 weight percent of an oxidizing agent, 1 to 30 weight percent of a reducing agent, and from about 20 to 75 weight percent of an alkali metal hydroxide, wherein the composition is capable of producing at least 230 calories of heat per gram upon dissolution in water.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: June 3, 1980
    Assignee: The Drackett Company
    Inventor: Richard G. Davis
  • Patent number: 4201799
    Abstract: Described is a masking tape adapted for use in defining a selected portion of a surface for refinish spray painting wherein the masking tape is applied to a peripheral portion of the selected surface portion with a lateral portion of the tape being angled upwardly from the surface to form an included angle within the range of approximately 15.degree. to approximately 45.degree.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: May 6, 1980
    Inventor: Charles E. Stephens
  • Patent number: 4201828
    Abstract: Impact resistant glass laminates formed of at least one silicate glass panel and at least one polycarbonate panel bonded together by a methacrylate resin formed from at least 50% by weight of the polymerizable mixture of 2-ethylhexyl methacrylate.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: May 6, 1980
    Assignees: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Fritz Evers
    Inventors: Wolfgang Triebel, Siegfried Hari, Hubert Koert, Fritz Evers
  • Patent number: 4199637
    Abstract: Anisotropically pressure-sensitive electroconductive composite sheets are provided which have a very low electric conductive resistance in the direction perpendicular to the plane of the sheet when compressed with an adequate pressure in the direction but a high insulating resistance in all directions within the plane of the sheet. The composite sheets are constructed so that electrically conductive fibers are uniformly dispersed in the matrix of an electrically insulating substance, the average length of the fibers ranging from 20 to 80% of the thickness of the sheet, and are aligned in the direction substantially perpendicular to the plane. They are useful as a switching material in various miniaturized electronic circuits.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: April 22, 1980
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventor: Ryoichi Sado
  • Patent number: 4197151
    Abstract: A graphic laminate for mounting a sheet-like article such as a photograph or the like includes a flat mounting base, a layer of plastic material having a pressure sensitive adhesive coating on both surfaces thereof, one such surface being placed in contact with the front side of the base and the sheet-like article being placed in contact with the other surface of the plastic material to form a laminate with the plastic material lying intermediate the base and the sheet-like article. The description includes a method of making this laminate.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: April 8, 1980
    Inventor: Glenn M. Muzik
  • Patent number: 4196246
    Abstract: Anti-reflection film for a synthetic resin base comprises a first layer of silicon dioxide (SiO.sub.2) deposited on the synthetic resin base by evaporation, a second layer of alumina (Al.sub.2 O.sub.3) deposited on the first layer by evaporation, and a third layer of silicon dioxide (SiO.sub.2) or magnesium fluoride (MgF.sub.2) deposited on the second layer by evaporation. The first layer has a geometrical film thickness of 1 to 5 .mu., the second layer has an optical film thickness of .lambda./4, and the third layer has an optical film thickness of .lambda./4.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: April 1, 1980
    Assignee: Nippon Kogaku K.K.
    Inventors: Hidetaka Takayama, Hideo Ikeda
  • Patent number: 4172920
    Abstract: A pigment coated phosphor used as a green emitting phosphor for a high contrast color television cathode ray tube. A green emitting phosphor is coated with TiO.sub.2 --ZnO--CoO--NiO system pigment particles.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: October 30, 1979
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Katuzo Kanda, Noboru Kotera, Shusaku Eguchi, Hidenaga Horiuchi, Kazuhito Iwasaki