Patents by Inventor Claude Maeder

Claude Maeder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for processing signals produced by piezoelectric sensors mounted in a roadway for measuring the speed of vehicles
    Patent number: 6853885
    Abstract: The invention relates to an analog and digital processing method which samples signals provided by two piezoelectric method C1 and C2, making it possible to determine several speeds of a vehicle per axle.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: February 8, 2005
    Assignee: Electronique Contrôle Mesure
    Inventor: Claude Maeder
  • Method for processing signals produced by piezoelectric sensors mounted in a roadway for measuring the speed of vehicles
    Publication number: 20030074113
    Abstract: The invention relates to an analogue and digital processing method by sampling signals provided by two piezoelectric sensors C1 and C2, making it possible to determine several speeds of a vehicle per axle.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 17, 2003
    Inventor: Claude Maeder
  • Device for detecting pressure and passage of a vehicle wheel on a pavement using a conductive rubber and method for installing same
    Patent number: 6492604
    Abstract: A system for detecting the pressure and passage of a vehicle wheel on a surface includes an element made of a deformable conductive rubber component which is urged into contact with an opposing conductive metal component by the passage of a wheel over the element. The rubber component is maintained in a bracket having a generally square profile, and the element is connected to a two-conductor cable through a connection made of an insulating material.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: December 10, 2002
    Assignee: Electronique Controle Mesure
    Inventors: Claude Maeder, Régis Rollin
  • Motor-equipped control device for a valve adjusting rod
    Patent number: 4021015
    Abstract: A control device for a valve adjusting rod comprising an electric motor having a variable reluctance, the stator of which is attached to the frame of the valve and the rotor of which is connected for rotation with the adjusting rod - coaxially with respect to the latter.The rotor and the adjusting rod are co-rotated by means of a key arrangement which provides for an angular play between the rotor and the rod equal to the angular pitch P of the denticulations of the rotor.Repetition thereof with a nominal couple of the motor makes it possible to increase the locking or unlocking couple of the valve.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: May 3, 1977
    Assignee: Pont-A-Mousson S.A.
    Inventors: Claude Maeder, Jean Georges Sutter
  • Apparatus capable of being automatically uncoupled for the manual operation of a rotary shaft, in particular a valve actuating shaft
    Patent number: 3979970
    Abstract: The shaft to be operated is connected to a gear and is operable by an electrical device. This apparatus comprises a handwheel provided with a gear and integral with a rod movable between a coupling position in which the two gears are engaged and an uncoupling position to which it is elastically biased. A first pivotal arm has an end connected to move with the rod. A second pivotal arm is movable between a first and second position for locking the first arm in positions corresponding respectivey to the uncoupled and coupled states of the apparatus. A system controlled by the electrical device shifts the second arm to its first and second position when the electrical device is put in action and out of action respectively.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: September 14, 1976
    Assignee: Pont-A-Mousson S.A.
    Inventors: Michel Gabriel, Claude Maeder