Patents by Inventor Jacques Vaillant

Jacques Vaillant 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).

  • System for detecting the incomplete closure of the doors of a chamber having at least two superposed doors
    Patent number: 4771269
    Abstract: The invention relates to a system for detecting the incomplete closure of the doors of a chamber with at least two doors (14, 16), one an inner door and the other an outer door, arranged one behind the other in front of an orifice of the said chamber and mounted pivotally between an open position and a closed position about two parallel pivot axes (18, 24) respectively.The detection system comprises an active element (34) capable of causing an action in a particular direction and a sensor element (36) sensitive to the said action, the said elements being fastened one to the inner door (14) and the other to the outer door (16) at a point located opposite the other element, in such a way that the sensor element is in the line of action of the active element only when the two doors are closed correctly.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: September 13, 1988
    Assignee: Jouan
    Inventors: Alain Pasty, Jacques Vaillant