Patents by Inventor Franciscus A. Dons

Franciscus A. Dons 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).

  • Patent number: 4766587
    Abstract: An electrical apparatus such as a disc-record player, comprises a mounting device for a drive motor (7). The motor housing (6) is resiliently suspended on fixed motor supports (4) in the housing (1) of the apparatus so as to be in a radial direction with respect to the motor axis (7a). For this purpose suspension rings (11) of an elastic and vibration-dampening material are fitted around mounting elements (10) on the motor housing (6) and around the motor supports (4). The motor housing (6) carries stop portions (13) which in the event of axial movement of the motor housing (6) abut against fixed abutment surfaces (14) inside the housing (1) to limit said movement. Positioning means (15,20) are provided, which position said stop portions (13) and abutment surfaces (14) in such a way relative to each other after turning of the motor housing (6) and stretching of the suspension rings (11) that the stop portions (13) can move freely along the abutment surfaces (14) in an axial direction.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: August 23, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Franciscus A. Dons, Hermanus F. Einhaus