Patents Examined by Evan K. Lawrence
  • Patent number: 5009932
    Abstract: A method and apparatus for impregnating a porous substrate with foam, the method comprising transporting the porous substrate through a nip region defined by a rotating foraminous drum and a foam discharge head, the foam discharge head comprising one or more discharge openings, supplying foam to the discharge head with pressure sufficient to discharge foam through the discharge openings to impregnate the porous substrate, and urging the foam discharge head and the foraminous drum toward each other to compress the porous substrate as it passes the discharge openings. The foam discharge head is mounted to a hinged plate to enable the urging of the discharge head toward the foraminous drum.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: April 23, 1991
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Paul A. Klett, Shiv K. Bakhshi, Steven B. Stahl
  • Patent number: 5008131
    Abstract: A method and apparatus for impregnating a pourous substrate with foam the method comprising transporting the porous substrate through a nip region defined by a moving foraminous surface such as a rotating foraminous drum and a foam discharge head, the foam discharge head comprising one or more discharge openings, where the transport of the porous substrate through the nip region causes the porous substrate to be compressed as it passes the discharge openings, and supplying foam to the discharge head with pressure sufficient to discharge foam through the discharge openings to impregnate the porous substrate. A surface support conveyor is positioned between the foraminous surface and the porous substrate.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: April 16, 1991
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Shiv K. Bakhshi
  • Patent number: 4940608
    Abstract: A local electroless plating process for plastics comprising the steps of: coating the nonplating surface portion of a shaped plastic product with a pasty masking composition comprising a polymer and at least one compound selected from the group consisting of a sulfur compound, nitrogen compound and silicon compound; roughening the surface portion of the plastics product to be plated and applying a catalyst to the rough-surfaced portion; electrolessly plating the plastics product; and removing the polymer coating from the nonplating surface portion of the plastics product.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: July 10, 1990
    Assignee: Okuno Chemical Industry Co., Ltd.
    Inventors: Shigemitsu Kawagishi, Toshiyuki Kita
  • Patent number: 4830690
    Abstract: An embodiment of the present invention is an art and craft product is made using colored adhesives. The method of making the product comprises using a plurality of at least partially transparent squeeze bottles, each containing a different color of a non-toxic water and soap washable and removable adhesive which dries at room temperture to a hardened stable substance of the same color. A substantially continuous film of the colored adhesive is dispensed from one or more of the squeeze bottles and applied to individual structural parts of a visible scene in an art and craft object so that the adhesive being dispensed both forms a colored portion of the scene and bonds together the structural parts forming the visible scene. Contained in and visible through the bottle in the unit is a quantity of non-toxic, water and soap washable and removable colored adhesive, that is curable to a hardened colored state at room temperature. Included in the unit is a tube for dispensing the colored adhesive from the bottle.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: May 16, 1989
    Inventor: Diane Cooper
  • Patent number: 4806225
    Abstract: An integrated plasma desmearing and plated-through-hole apparatus for first plasma desmearing a printed circuit board and then plating through the holes of the plated circuit board by sputtering. The apparatus comprises a plurality of vacuum chambers serially interconnected together. Preferably, five vacuum chambers are provided including a loading chamber, a desmearing chamber, a plating preparation chamber, a plating chamber and an unloading chamber. Airtight isolation doors isolate each chamber from the others. A transport system is provided for serially transporting the printed circuit boards through the chambers.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: February 21, 1989
    Assignee: Advanced Plasma Systems, Inc.
    Inventors: Fazal A. Fazlin, Rex A. Lee
  • Patent number: 4782787
    Abstract: An apparatus wherein a beam of substantially coherent light passes through a window in a chamber and then through the chamber in a direction substantially parallel, and contiguous, to substrates in the chamber. The beam ionizes gases in a mixture in the chamber. The ionized gases combine to form a substance which becomes deposited on the substrate(s) as a layer or which etches a previously deposited layer on the substrate. As the beam moves through the chamber, it loses energy.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: November 8, 1988
    Inventor: Gregory A. Roche
  • Patent number: 4779557
    Abstract: A coater for an offset printing press in which the last printing station, i.e., the blanket cylinder roller with its associated sheet-handling grippers, is converted to coating service, such that a pick-up roller, after an ascending arcuate path not exceeding 80.degree., transfers a liquid coating to an applicator roller rotating in an opposing direction to the blanket cylinder surface which coats the individual imprinted sheets and the liquid coating itself serves as a lubricant permitting said opposing directions of rotation and grippers of said blanket cylinder roller maintain proper handling control of the sheets during the coating thereof. Limiting the arcuate path of 80.degree. obviates reverse flow of the liquid coating on the pick-up roller.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: October 25, 1988
    Inventor: Joseph Frazzitta
  • Patent number: 4779558
    Abstract: A method and apparatus for preventing smudging of indicia printed on a surface by selective application of an amount of coating material to lubricate the contact with surfaces abrading the printed indicia or to provide physical separation from abrading surfaces, and thus prevent smearing. The coating material is preferably a "Teflon" micropowder that is applied by using impulse devices to dispense controlled amounts of the micropowder from a container, with the dispensed micropowder being transferred to, and passing through a plurality of apertures adjacent the surface of a piece of paper on which indicia has just been printed by a nonimpact printer such as a laser printer.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: October 25, 1988
    Assignee: Pierce Companies, Inc.
    Inventors: Edward R. Gabel, Ronald R. Surya, William J. Hanson, Mary B. Burke
  • Patent number: 4779563
    Abstract: A preform wire for fiber reinforced metal composite consisting of a metal/silicon carbide fiber composite material is light in weight and excellent in strength and elasticity, and can be easily obtained by impregnating a silicon carbide fiber bundle with a molten metal which is kept vibrated by means of an ultrasonic wave vibration apparatus having a hole for cooling water or a cooling-water jacket located at the node of the half-wavelength of the ultrasonic wave created by the vibration apparatus.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: October 25, 1988
    Assignee: Agency of Industrial Science & Technology
    Inventors: Toshikatsu Ishikawa, Haruo Teranishi, Yoshikazu Imai, Yoichi Nagata
  • Patent number: 4777106
    Abstract: An electrostatic toning system employed in applying toner to latent electrostatic images on the surface of a dielectric material. Toning is accomplished by fluidizing the toner in a gaseous stream, charging the toner in the fluidized bed, and conveying the charged toner to the dielectric surface by means of a toner receptive member in contact with the fluidized toner.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: October 11, 1988
    Assignee: Dennison Manufacturing Company
    Inventors: Richard A. Fotland, Leo A. Beaudet
  • Patent number: 4774102
    Abstract: An electrostatic powder spray coating method and apparatus for producing evenly coated continuous films of thermoplastic and thermosetting powders on substrates or parts having electrically conductive geometric complex surfaces and enables the use, without the occurrence of "cobwebbing," of significantly higher charging voltages for the spray gun in the spray coating of preheated substrates and parts, thus allowing faster coating lines. The invention features the use of a grounded electrically conductive ring for grounding the ionized field in the powder discharge region of the spray gun.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: September 27, 1988
    Assignee: Morton Thiokol, Inc.
    Inventors: Steven L. Kiefer, Stephen Hart, Ronald G. Creech
  • Patent number: 4774108
    Abstract: Improved techniques are provided for obtaining a desirable surface finish of two or more visually distinct selected colors. A mat is prepared by selectively weaving wire between fixed pins on a board. Once removed from the pins, the mat may be molded about the surface of an object painted a first selected color. A second color is then applied over the mat and the object, resulting in a desired dual-color finish after the mat is removed. The techniques of the present invention are particularly well suited for obtaining a high quality marble-like finish on objects of various sizes, shapes, and materials.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: September 27, 1988
    Inventor: Arq C. C. Cano
  • Patent number: 4771499
    Abstract: An apparatus for cleaning and spray painting pole structures. The apparatus includes a carriage constructed to be upwardly and downwardly movable along the axis of the pole to be cleaned or painted. Mounted on the carriage is a carousel rotatably secured so as to revolve around the pole as the carriage moves upwardly and downwardly. The carousel may be provided with brushes for cleaning the pole or with a paint sprayer for applying paint. In one embodiment two pairs of rollers are located symmetrically with respect to the sprayer and the poles so that the rollers evenly apply the paint to the pole and simultaneously minimize overspray losses.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: September 20, 1988
    Assignee: SIVEP di Meniconi Giorgio e C. S.a.s.
    Inventors: Gaetano Fusi, Silvio Meniconi
  • Patent number: 4771729
    Abstract: A method and system are provided for dispensing only that amount of coating material which is required for coating a series of one or more articles to be coated by the coating material. The method and system include the step of, and apparatus for, feeding that amount of coating material to an intermediate container. The intermediate container receives the coating material from a color changer. The connection between color changer and intermediate container is so designed that no electrical current flow exists between these two components, even when using electrically conducting coating material. The coating material is electrostatically charged at an atomizer downstream from the intermediate container during a spray operation.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: September 20, 1988
    Assignee: Ransburg GmbH
    Inventors: Albert Planert, Winfried Ott, Gunther Fleig
  • Patent number: 4770896
    Abstract: An output scanner exposure cylinder perforated to allow exposure film to be held on to the cylinder by vacuum comprises a metal substrate carrying a coating of cured black resin composition which has been machined to e.g., a thickness of 0.1 to 1.5 mm. The resin is usually an epoxy resin and is applied as a powder and cured by heating.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: September 13, 1988
    Assignee: Crosfield Electronics
    Inventors: Colin Crown, Edward H. Last
  • Patent number: 4770116
    Abstract: A heat and pressure roll fusing apparatus for fixing toner images to copy substrates, the toner comprising a thermoplastic resin. The apparatus includes an internally heated fuser roll cooperating with an unheated bare metal backup or pressure roll to form a nip through which the copy substrates pass with the images contacting the heated roll. The heated fuser roll is characterized by a comformable outer layer or surface which by way of example is fabricated from a silicone rubber or "Viton" material to which a low viscosity polymeric release fluid is applied. Release fluid is contained in a sump and the pressure roll is partially immersed in the fluid. Thus, the release fluid is applied to the surface of the internally heated fuser roll via the bare metal pressure roll. The roll structures are such as to provide maximum area of contact in the nip, while minimizing the area of contact between the pressure roll and the copy substrates.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: September 13, 1988
    Assignee: Xerox Corporation
    Inventor: Rabin Moser
  • Patent number: 4769117
    Abstract: A barrel plating apparatus in which a barrel accommodating a large number of works is successively soaked in a plurality of baths filled with treatment liquid, the barrel comprising a peripheral wall, a pair of end walls at opposite ends of the peripherial wall, an opening provided at a central portion of the end wall without a cover or a cap, and a space for accommodating the works which is formed by a space lower than the opening inside the barrel when the central longitudinal axis of the barrel is horizontal.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: September 6, 1988
    Assignee: Uyemura Kogyo Kabushiki Kaisha
    Inventors: Kiichi Shiono, Keizou Nakagawa
  • Patent number: 4766017
    Abstract: A process is disclosed for the adhesive metallization of ceramic materials by roughening of the materials and subsequent chemical and, if necessary, galvanic metal deposition, in which the materials are treated with an alkali hydroxide solution having a temperature from 50.degree. to 180.degree. C. for the roughening, and are subsequently heated to a temperature between about 300.degree. and 600.degree. C. The metal coatings provided on the ceramic materials display adhesive strengths from 3 to 5 kg/inch. Such materials find use in the fields of electrical engineering and electronics.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: August 23, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Kurt Heymann, Christoph Donner
  • Patent number: 4764393
    Abstract: In the electrostatic coating of large workpieces, for example vehicle bodies, the installation must be switched off automatically in order to avoid a voltage breakdown when the operating current rises to a threshold value predetermined as a function of the operating voltage which is adjustable over a certain range. To this end, all threshold values applicable to selectable voltage values are stored jointly, more particularly in a microprocessor, and when the installation is in operation, they are selected automatically according to the voltage which has been adjusted. A warning signal is produced when an intermediate threshold value of the current is exceeded, where the intermediate value has been automatically adjusted between the normal and threshold values of the current.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: August 16, 1988
    Inventors: Peter Henger, Fred Luderer
  • Patent number: 4763601
    Abstract: A continuous composite coating apparatus for coating a continuous strip has a pair of strip supply/take-up devices and at least two of a plasma chemical vapor deposition coating zone, an ion-plating coating zone and a sputtering coating zone which are arranged in series along the path of said strip between the strip supply/take-up devices. The adjacent coating zones are separated from each other by a partition wall having a slit which is sized to allow the strip to pass therethrough and guide rollers are provided adjacent to the upper edge of the strip so as to tense the strip such that the path of the strip is slightly convex downwards thereby to keep the strip away from the upper and lower edges of the slit. The coating zones are arranged to effect coating only on the underside of the strip which is not contacted by the guide rollers, whereby a coating layer having excellent properties without any defect can be formed on the underside of the strip.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: August 16, 1988
    Assignee: Nippon Steel Corporation
    Inventors: Seishiro Saida, Isao Ito, Satoshi Ito, Naotake Okubo