Patents by Inventor Daniel Wathelet

Daniel Wathelet 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 switching the electric supply between independent load circuits
    Patent number: 4777380
    Abstract: A method of and circuit for applying an electronic supply to two independent load circuits. An AC generator has a variable cyclic ratio. It is connected to two parallel rectifying circuits which are in series respectively with the two loads. The cyclic ratio of the alternating signal from the generator is altered. Thus, modifying the power delivered to each of the loads, because the rectifying circuits only rectifies one alternation of the complete AC signal from the generator. The power from the generator may be delivered to one or the other load or even to both load simultaneously.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: October 11, 1988
    Assignee: Thomson-CSF
    Inventor: Daniel Wathelet
  • Tilting examination frame
    Patent number: 4650172
    Abstract: The invention concerns a simplified control tilting examination frame. According to the invention, the frame comprises a table, a base and a pivoting support while the control system of the displacement of the table with respect to the support is servo-controlled by a representative signal of the tilting of the said pivoting support, in order to prevent under any circumstances one end of the table from touching the ground. The invention applies to medical radiology.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: March 17, 1987
    Assignee: Thomson-CGR
    Inventor: Daniel Wathelet