Patents Represented by Attorney Chapman & Cutler LLP
  • Patent number: 8277623
    Abstract: The present invention relates to a conductive diamond electrode, comprising a substrate having a plurality of convex and concave part disposed over the entire surface of the conductive diamond electrode, and a diamond film coated on the surface of said substrate, wherein the width of each convex part of said convex and concave part is in a range from 0.2 mm to 1 mm. The present invention can provide a conductive diamond electrode, applying a thin film of conductive diamond and a thick substrate, being less expensive than a self-supported type conductive diamond electrode and also having mechanical strength enough to be used in the zero-gap electrolysis, functioning stably for a long time with smooth water supply or gas liberation, and an ozone generator using the conductive diamond electrode.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: October 2, 2012
    Assignee: Chlorine Engineers Corp., Ltd.
    Inventors: Masaaki Kato, Rie Kawaguchi
  • Patent number: 7777865
    Abstract: A time difference measuring device can accurately measure a time difference between two pulse signals generated with a predetermined time difference by measuring the two pulse signals by one measurement. The time difference measuring device measures a time difference between a start signal (M1) and a stop signal (M2). The device has a reference signal generation unit (41) for generating two reference signals (S1, S2) having a ?/2 phase difference. According to corresponding amplitude values (A11, A12) and (A21, A22) of the reference signals (S1, S2) at each generation timing of the start signal (M1) and the stop signal (M2), a phase difference detection unit (42) calculates a phase difference ?? (=?stop??start) between the generation timings of the pulse signals (M1, M2). According to the detected phase difference ?? and the cycle (Ts) of the reference signals (S1; S2), a time difference calculation unit (44) calculates the generation time difference ?t between the pulse signals (m1, M2).
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 17, 2010
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Masahiro Ohishi, Fumio Ohtomo
  • Patent number: 7514264
    Abstract: A method for estimating the sulfur content in the fuel of an internal combustion engine equipped with a catalyser, using a current sulfur concentration value (Sold) and a correction of said current sulfur concentration value (Sold) in order to obtain a new sulfur concentration value (Snew). The method includes the steps of measuring a first time interval (t1-t0) which is actually necessary in order to complete a regeneration process to remove sulfur; determining a quantity (SOxstored) of sulfur stored in the catalyser before the regeneration process to remove sulfur using the current sulfur concentration value (Sold); estimating a second time interval (t2-t0) which is theoretically necessary to complete the regeneration process, on the basis of the estimated quantity (SOxstored) of sulfur stored in the catalyser; and determining a multiplicative correction coefficient as a ratio between the first time interval (t1-t0) and the second time interval (t2-t0).
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: April 7, 2009
    Assignee: Magneti Marelli Powertrain S.p.A.
    Inventors: Daniele Ceccarini, Matteo De Cesare, Luca Poggio
  • Patent number: 6857394
    Abstract: An article for a domestic bird is provided with a perch rod surrounded by protective base, window wall, and side walls for mounting inwardly of a window of a building. A domestic bird free-flying in the building, or a clipped bird climbing a ladder or braided rope, can alight on the perch rod in the article and enjoy the light of the window while being prevented from pecking and damaging the wood and other structure of the window. The window wall and side walls of the article extend well above or beyond the perch rod a distance greater than the maximum reach of the bird's beak while the bird is standing on the perch rod. A portion of the article also comprises a base below the perch rod, for catching droppings and spatters of the bird. The article is mounted to the window glass by suction cups, and can be further supported by cushions on the base of the article which engage a horizontal surface of the window structure, as a sill of the window structure or the top of a lower sash.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: February 22, 2005
    Inventor: John Redford
  • Patent number: 6666412
    Abstract: A device for switching and elastically locking the end positions of movable switch parts, in particular switch tongues of grooved rail switches, including an axially displaceable rod (15) and a tube (17) surrounding the rod, in which a spring (29) encompassing the rod is braced against stops and locking members (26, 26′) capable of being displaced radially outwards are arranged, wherein the rod (15) has axially spaced-apart control stops (24, 25) for a radially inward position of the locking members (26, 26′) and the tube (17) has stops (32, 33) for the outward position of the locking members (26, 26′), wherein at least one (25) of the control stops (24, 25) of the rod (15) is displaceable relative to at least another one (24) of the control stops (24, 25) in the axial direction of the rod (15) and is capable of being fixed in the respective displaced position.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: December 23, 2003
    Assignee: VAE Aktiengesellschaft
    Inventors: Herbert Achleitner, Josef Hörtler, Armin Lassacher