Patents Examined by F. Rollins Cross
  • Patent number: 5529712
    Abstract: A detergent composition which comprises (A) an N-acyl amino acid salt of an amino acid selected from glycine, alanine and .beta.-alanine where the acyl group is a saturated or unsaturated fatty acid residue having 8 to 20 carbon atoms and (B) a higher fatty acid salt at a Component (A)/Component (B) weight ratio of 99.5/0.5 to 90/10, and another detergent composition derived from the above composition, which comprises further a higher alcohol and/or polyhydric alcohol. According to the present invention, properties of N-acyl amino acid salts as detergents can be improved.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: June 25, 1996
    Assignee: Ajinomoto Co., Inc.
    Inventors: Keigo Sano, Tatsuya Hattori
  • Patent number: 5506184
    Abstract: A catalyst composition for olefin polymerization and copolymerization which contains a transition metal complex with a bidentate or a tridentate ligand and a cocatalyst mixture containing dialkylaluminum halide and dialkylmagnesium.The transition metal complexes with bidentate ligands L have the empirical formula LMX.sub.2, LMXY or L.sub.2 M where M is Ti, V, Zr or Hf; X is an alkoxy group, an aryloxy group, or a halogen atom; Y is a mono- or double-bonded ligand different from X.The bidentate L ligands are described by general formulasZ--R--Z OR Z--R--W--R--Zwhere R is an alkylene group, a cycloalkylene group, an arylene group (unsubstituted or alkyl-substituted) or an alkylarylene group; W is CH.sub.2, O, S, N--R', or SiR'.sub.2 where R' is an alkyl or an aryl group; and Z is an oxygen atom, a sulfur atom, an N--H group or a C(.dbd.O)--O group.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: April 9, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Yury V. Kissin, Robert I. Mink
  • Patent number: 5384449
    Abstract: An authorization matching system for a credit card transaction system assigns the same identification code to authorization and transaction records associated with a particular transaction. The records may be matched by matching the identification number in the records, even if other data in the records does not match.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: January 24, 1995
    Assignee: Visa International Service Association
    Inventor: Roger L. Peirce
  • Patent number: 5368001
    Abstract: A fuel handling system for an internal combustion engine having a reservoir for receiving fuel under low pressure from a remote gas tank and a fuel pump for delivering the fuel under high pressure to a fuel injector of the engine while providing vapor separation. The reservoir has an inlet for receiving fuel from the tank, an outlet for removing fuel from the reservoir and delivering it to the engine, a fuel return for returning fuel not used by the engine, a drain for removing water, and a vapor vent for removing fuel vapors from a gas dome above the liquid within the reservoir. The inlet has a valve controlled by a float in the reservoir for admitting fuel to maintain the level of liquid in the reservoir so that the pump is supplied with fuel. To remove fuel, a fuel pickup is coupled to an inlet of the pump which has its outlet coupled to the reservoir outlet. The pickup has a diaphragm for filtering fuel entering the pump while preferably preventing the admission of gas or water.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: November 29, 1994
    Assignee: Walbro Corporation
    Inventor: Ronald H. Roche
  • Patent number: 5357908
    Abstract: A method for controlling exhaust gas emissions from an engine (16) includes extracting a light distillate fuel (Fd) from conventional gasoline or other liquid hydrocarbon fuel and supplying the engine with the light distillate fuel during an initial operation period of the engine. This reduces the oxidizable pollutants in the engine exhaust during a cold-start period before a catalytic converter (22) used to abate pollutants in the engine exhaust gases has not yet attained its operating temperature. After the catalytic converter (22) has been sufficiently heated, the fuel supply to the engine (16) is switched to gasoline or other liquid hydrocarbon fuel. Both the distillate fuel (Fd) and the liquid hydrocarbon fuel may be passed through a heated cracking catalyst bed (30) to crack the fuel fed to the engine.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: October 25, 1994
    Assignee: Engelhard Corporation
    Inventors: Shiang Sung, John J. Steger, Joseph C. Dettling, Patrick L. Burk