Patents by Inventor Yves Albert Daniel Thibaut

Yves Albert Daniel Thibaut 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 of and device for controlling a d.c. washing machine motor
    Patent number: 4007409
    Abstract: A method of controlling the operation of a d.c. motor of a washing machine by energizing or de-energizing a reference voltage generator. The back-e.m.f. of the motor is compared with the reference voltage. The a.c. supply of the generator is controlled by contacts of detectors for the operating conditions of the machine, such as temperature of the suds or of electronic components, unbalance, opening of the door etc.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: February 8, 1977
    Assignee: U.S. Philips Corporation
    Inventor: Yves Albert Daniel Thibaut
  • Device for preventing unbalance in washing machines during spindrying
    Patent number: 3939673
    Abstract: A device for avoiding unbalance during acceleration to spindrying. A water level sensor has an additional contact through which a control voltage which is derived from a motor speed regulator is fed, and interrupts the motor supply if the drum speed decreases below a predetermined value. Spindrying cannot commence until after the tub is filled and an operating sequence at washing speed has taken place.
    Type: Grant
    Filed: March 13, 1974
    Date of Patent: February 24, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Yves Albert Daniel Thibaut
  • Switching control for a reversing motor of a washing machine
    Patent number: 3934433
    Abstract: A device for switching a d.c. motor of a washing machine. The drive means of the reversing device is connected in series with a pressostat. This circuit is connected in parallel with the terminals of the pump contact; a terminal of the pressostat contact and a terminal of the actuation contact of the supply module of the d.c. motor are connected. The motor of the reversing device is connected in series with the pump motor through which it is energized.
    Type: Grant
    Filed: February 7, 1974
    Date of Patent: January 27, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Yves Albert Daniel Thibaut