Patents Examined by Richard O. Dean
  • Patent number: 5542442
    Abstract: An oil filter cleaning system having a used oil and water receiving tank and a water supply tank. A used oil filter is secured to the top end of a pipe connected to a submersible water pump in the water supply tank and when operated will drive water under pressure up through the aperture in the bottom of the water filter and drive the used oil remaining therein out an aperture that has been formed in the side of the oil filter adjacent its bottom end. This flow of water and used oil that exits the oil filter is then directed into a filtration system located adjacent the top end of the used oil water receiving tank. The water filtration system has a large debris catching screen acting as a first phase and a fine mesh nylon filter acting as a second phase of filtration. The used oil passing through the fine mesh nylon filter floats on top of the water in the used oil and water receiving tank. The water at the bottom of the used oil and water receiving tank is free to pass to the water supply tank.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: August 6, 1996
    Assignee: Gary W. Gorman, Sr.
    Inventor: Gary W. Gorman, Sr.
  • Patent number: 5470394
    Abstract: The present invention relates to central reactor apparatus for applying cleaning treatments to plates such as regularly-shaped flat parts e.g. semiconductor media as used for making integrated circuits, or optical disks, etc. . . . The apparatus comprises a chamber including side walls, an end wall, an opening through a front plate facing said end wall, support means enabling a plurality of parts to be supported, means for injecting treatment fluids, closure means for closing said chamber, and discharge means for discharging said fluids, thereby enabling said parts to be treated by means of said fluids and subsequently enabling the chamber to be emptied. Said means for supporting the parts is secured to the closure means and is constituted by two side combs which are articulated on links enabling the combs to be tilted apart from each other to enable said parts to pass between them, and then to be tilted towards each other so that they engage beneath the parts and support them inside said chamber.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: November 28, 1995
    Assignee: Sapi Equipements S.A.
    Inventors: Georges L. Michel, Olivier M. Nathan
  • Patent number: 5453132
    Abstract: A method for cleaning an optical surface such as an eyeglass lens involves the use of a cleaning head having a contact seal for engaging around the perimeter of the surface to be cleaned. The cleaning head defines a shallow cleaning cavity which includes the optical surface and the surface is cleaned by generating in the cavity a high velocity air flow across the surface, introducing a cleaning fluid into the air flow so as to scrub the surface, and terminating the introduction of cleaning fluid while maintaining the air flow to remove any residual cleaning fluid. A particular application of the method to simultaneously clean all four surfaces of the eyeglass lenses of a pair of 3-D glasses is also disclosed.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: September 26, 1995
    Assignee: Imax Corporation
    Inventor: Kevin P. Kowalchuk
  • Patent number: 5453133
    Abstract: The invention disclosed relates to a process for removing contaminants, such as hydrocarbons, from soil. The process involves contacting the contaminated soil with a suitable solvent for the contaminant, in the presence of a bridging liquid which is immiscible with the solvent, while agitating. The amount of the bridging liquid and the degree of agitation are balanced to control the particle size of the substantially contaminant- and solvent-free soil agglomerates so formed.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: September 26, 1995
    Assignee: National Research Council of Canada
    Inventors: Bryan D. Sparks, F. Weldon Meadus, David H. McNabb, C. Edward Capes
  • Patent number: 5423924
    Abstract: A method and for the heat treatment of at least one metal wire (1), chararized by passing the wire (1) within at least one pair of thermal transfer plates (2, 2a, 2b) between two grooves (8, 8a, 8b) made in the two plates (2, 2a, 2b) of each of said pairs, adjusting the variable distance (E) between the plates, so that the wire (1) is directly in contact with a gas (11) which is practically without forced ventilation and is disposed between the grooves (8, 8a, 8b).
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: June 13, 1995
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & CIE
    Inventors: Andre Reiniche, Christian Chanet
  • Patent number: 5421920
    Abstract: After a predeoxidation treatment of a molten steel comprising as basic ingredients, in terms of % by weight, 0.04 to 0.20% of C, 0.05 to 0.50% of Si, 0.4 to 2.0% of Mn, 0.3 to 0.7% of Mo, 0.003 to 0.015% of N, 0.04 to 0.20% of V and less than 0.005% of Al to regulate [O %] to 0.003 to 0.015% by weight, titanium is added thereto so as to satisfy a requirement represented by the formula: -0.006.ltoreq.[Ti %]-2[O %].ltoreq.0.008 to crystallize a titanium-based oxide in an amount of 20 particles/mm.sup.2 or more, and MnS, TiN and V(C, N) are deposited on the titanium-based oxide to disperse the titanium-based oxide as a composite precipitate in the steel to provide a cast slab, and a high-strength high-toughness shape steel having an excellent fire resistance is provided by a combination of water cooling between rolling passes at the time of rolling with accelerated cooling after the completion of the rolling.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: June 6, 1995
    Assignee: Nippon Steel Corporation
    Inventors: Kohichi Yamamoto, Suguru Yoshida, Kazuo Watanabe
  • Patent number: 5421899
    Abstract: A method for manufacturing metal containers using a cleaning agent having a substantially neutral pH is disclosed. Lubricants and coolants used during the container forming process are cleaned from the surface of metal containers by using a terpene cleaning agent comprising d-limonene, alpha-terpineol, beta-terpineol, alpha-pinene, beta-pinene, alcohols of such agents or mixtures thereof. Surfactants may also be used to aid in the cleaning process. The organic component of the cleaning agent, as well as lubricants, coolants and aqueous components, are separated for recycling and re-use.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: June 6, 1995
    Assignee: Golden Technologies Company, Inc.
    Inventors: C. Richard Hamilton, Ralph Z. Marsh, Russ Thompson
  • Patent number: 5417778
    Abstract: A light weight, high strength quaternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, and from approximately 0.2 to 5 weight % germanium and from 0.2 to 4.25 weight % silver, with the balance aluminum. Beryllium strengthening elements selected from the group consisting of copper, nickel, or cobalt may be present at from 0.1 to 5.0 weight % of the alloy to increase the alloy strength.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: May 23, 1995
    Assignee: Nuclear Metals, Inc.
    Inventors: William T. Nachtrab, Nancy F. Levoy, Raymond L. White, III
  • Patent number: 5413640
    Abstract: A method of producing a non-oriented electromagnetic steel strip by subjecting a low-carbon steel slab to hot-rolling, cold rolling at a small reduction and first annealing. In order to improve magnetic flux density and surface appearance of the product, specific conditions are employed so as to coarsen the crystalline structure to obtain a controlled and moderate crystal grain size after the annealing. The slab is cold-rolled at a rolling reduction of about 5 to 15% and is subjected to first annealing by heating at a rate of about 3.degree. C./sec or higher and holding the strip for about 5 to 30 seconds at 850.degree. C. to the A.sub.3 transformation temperature of the steel, while controlling the crystal grain size to about 100 to 200 .mu.m after first annealing.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: May 9, 1995
    Assignee: Kawasaki Steel Corporation
    Inventors: Masahiko Manabe, Kazumi Morita, Yoshinari Muro, Takahiro Kan, Yoshiaki Iida, Hideo Kobayashi, Takashi Obara
  • Patent number: 5413639
    Abstract: A method of manufacturing a low-core-loss oriented electrical steel sheet. Thread-like grooves are formed in a cold-rolled grain oriented electrical steel sheet having a final thickness of about 0.27 mm or less in a direction within the range of about 30.degree. from the direction perpendicular to the rolling direction. The grooves and sheet satisfy the equationlog d.gtoreq.0.6 Ra+0.4where d is the groove depth (.mu.m), and Ra is the mean surface roughness of the steel sheet cold-rolled to final gauge. The steel sheet is thereafter decarburization annealed and final texture annealed.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: May 9, 1995
    Assignee: Kawasaki Steel Corporation
    Inventors: Keiji Sato, Bunjiro Fukuda
  • Patent number: 5411596
    Abstract: A method and composition for clean up of an oil based composition using an aqueous solution. The clean up composition includes 5-60% by weight of a solubility controlling component exhibiting pH dependent water solubility behavior and 30-95% by weight of a diluent. The method includes applying the clean up composition to the oil based composition and cleaning the same with an aqueous solution having a wash pH falling within the pH levels at which the solubility controlling component is water washable.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: May 2, 1995
    Assignee: Deluxe Corporation
    Inventor: Thomas J. Pennaz
  • Patent number: 5411700
    Abstract: Powder metallurgy techniques are disclosed for fabricating gamma titanium alloy articles (TiAl type alloys) from mixture of powder wherein one species is based on Al.sub.3 Ti and the other Ti.sub.3 Al. Mixtures of these powders in the proper ratio can be compacted, worked, and heat treated to form the desired gamma TiAl alloy.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: May 2, 1995
    Assignee: United Technologies Corporation
    Inventor: Ricky L. Martin
  • Patent number: 5407496
    Abstract: A method for the production of a slideway-type guide for driven chains such as cutting chains includes the application of a wear-resistant hard metal alloy as a running surface to the slideway of the guide. A bar-shaped blank with a dentritic structure, made from the alloy, is produced to form the running surface, a suction casting process being used in particular for this purpose. The blank is treated by hot isostatic pressing with high pressure at a high temperature. This is followed by an annealing process over a number of hours, at the end of which the structure of the alloy is so altered that the previously acicular and, to some extent, lattice-type carbides are dispersed and converted to rounded and, to some extent, spheroidal bodies which are densely and evenly distributed throughout the alloy. The alloy thereby becomes highly wear-resistant. The bars are then shaped so as to fit onto the slideway, and are fixedly connected thereto.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: April 18, 1995
    Inventors: Hans P. Stehle, Udo Bartmann
  • Patent number: 5407492
    Abstract: A process for a passivated film which is far reduced in the amount of gas discharge and can desorb an adsorbed gas more readily, which process comprises heating a stainless member with a surface roughness, Rmax, of 1.0 .mu.m or less in an atmosphere of a mixture comprising oxygen gas and an inert gas and having a dew point of -95.degree. C. or below, an impurity concentration of 10 ppb or less and an oxygen content 5 ppm 25 vol % at 300.degree. to 420.degree. C.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: April 18, 1995
    Assignee: Osaka Sanso Kogyo Ltd.
    Inventors: Tadahiro Ohmi, Yoshiyuki Nakahara, Takashi Sakanaka, Eiji Ohta, Satoshi Mizokami
  • Patent number: 5401324
    Abstract: Apparatus for cleaning an internal passage of an article, such as a fuel passage of a gas turbine or other engine. The apparatus comprises a container for containing cleaning fluid, means for communicating a first end of the passage to the cleaning fluid in the container, and cleaning fluid conduit means communicated to a second end of the passage in a manner to draw cleaning fluid from the container to flow through the passage from the first end toward the second end in response to flow of cleaning fluid through the conduit means. The apparatus includes means for blocking flow of cleaning fluid through the conduit means so as to direct the cleaning fluid therein to flow through the passage from the second end toward the first end and into the container.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: March 28, 1995
    Assignee: Fuel Systems Textron, Inc.
    Inventor: Richard V. Huddas
  • Patent number: 5401338
    Abstract: A process for making metal-matrix composite includes adding ultrafine reinforcing material having a particle size as fine as 0.05 .mu.m into the metal alloy matrix in a refining furnace to be homogeneously dispersed in the matrix for producing metal-matrix composite by a refining process, which is degassed to remove gases to eliminate porosity in the composite, thereby producing metal-matrix composite having improved mechanical properties.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: March 28, 1995
    Inventor: Ching-Bin Lin
  • Patent number: 5401339
    Abstract: A process for producing low-cost atmospheres suitable for decarburize annealing carbon steels from non-cryogenically generated nitrogen containing up to 1.54 residual oxygen by catalytically deoxygenating a non-cryogenically generated nitrogen stream at low temperatures with a hydrocarbon gas and mixing the deoxygenated stream with an economical amount of hydrogen prior to introduction into the furnace for annealing. The process includes the use of 1) hydrocarbon gas to convert residual oxygen to a mixture of carbon dioxide and moisture at low temperatures and 2) mixing the deoxygenated stream with a sufficient amount of hydrogen to maintain a pH.sub.2 /pH.sub.2 O ratio of at least 2 in the furnace.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: March 28, 1995
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Diwakar Garg, Brian B. Bonner, Kerry R. Berger
  • Patent number: 5399313
    Abstract: There is provided by the present invention nickel-base superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries and an improved balance between cyclic oxidation and hot corrosion resistance. The improved tolerance arises from the discovery that nickel-base superalloys suitable for casting as single crystal articles can be improved by the addition of small, but controlled, amounts of boron and carbon, and optionally hafnium, and is manifested principally by improved grain boundary strength. As one result of this increased grain boundary strength, grain boundary mismatches far greater than the 6.degree. limit for prior art single crystal superalloys can be tolerated in single crystal articles made from the nickel-base superalloys of this invention. This translates, for example, into lower inspection costs and higher casting yields as grain boundaries over a broader range can be accepted by visual inspection techniques without resort to expensive X-ray techniques.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: March 21, 1995
    Assignee: General Electric Company
    Inventors: Earl W. Ross, Carl S. Wukusick, Warren T. King
  • Patent number: 5397397
    Abstract: The present invention relates to an aqueous composition and improved process useful for cleaning and facilitate drying of various metallic and non-metallic surfaces or components. According to the invention the water-immiscible hydrocarbon or non-halogenated organic solvent cleaning step is followed by an aqueous displacement solution (ADS) which contains a surfactant component and a pH modifier component in sufficient amounts to substantially displace the hydrophobic organic solvent residue from on the surface of the substrate and prevent its redeposition. The improved process is an alternative for replacing the ozone depleting chlorofluorocarbons and Halogenated solvents (ODS) or other volatile organic solvents (VOC) being commonly used in cleaning variety of industrially manufactured metallic and non-metallic components.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: March 14, 1995
    Assignee: Crestek, Inc.
    Inventor: Sami B. Awad
  • Patent number: 5395464
    Abstract: A method for obtaining a product from pre-alloyed powders in which the powders are subjected to compaction treatment. The powders are first subjected to pre-treatment under low pressure (or without pressure) at a temperature such that segregating materials precipitate out in stable phases.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: March 7, 1995
    Assignee: TECPHY
    Inventor: James Davidson