Patents by Inventor Henri M. Grobben

Henri M. Grobben 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: 5050147
    Abstract: A disc changer comprises a frame (1), a cassette holder (3) having a positioning surface (11) for a cassette comprising with a plurality of supports for a disc, in particular an optical disc, means (75, 87) for moving said supports out of and into the cassette, and retaining means (103, 117) for retaining a disc which has been moved out of the cassette. The disc changer comprises a motor driven cassette lift to produce a rectilinear axial movement of the cassette holder relative to the frame in a direction transverse to the positioning surface of the cassette holder to transfer the discs in the cassette to a predetermined plane. The cassette lift comprises a lift element (21) which is rotatably connected to the cassette holder and which is coupled to drive means (41), which lift element has an axis of rotation (31) extending transversely of said positioning surface.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: September 17, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Henri M. Grobben, Willem J. Borgions, Paul P. M. Mathijs
  • Patent number: 4799209
    Abstract: Device for clamping an optical disc on a turntable (19) includes a turntable which is supported in a chassis (11) and which has a centring member (19B), and a pressure element (15) which is movably supported in a frame (17). The pressure element comprises a holder (37) and a pressure member (39). The holder comprises three resilient limbs (51) which extend in substantially radial directions and which resiliently enclose a central spindle (47) of the pressure member for positioning the pressure member centrally in the holder.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: January 17, 1989
    Assignee: U.S. Philips Corporation
    Inventor: Henri M. Grobben
  • Patent number: 4363120
    Abstract: A belt drive record player having a turntable mounted on a main frame and a motor mounted on a resiliently supported sub-frame. A switching member having two fork limbs, for transferring the belt between different speed pulleys, is mounted on the sub-frame and is movable between two positions defined by stops on the sub-frame. A control member mounted on the main frame is disengaged from the switching member except when the speed is being changed.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: December 7, 1982
    Assignee: U.S. Philips Corporation
    Inventors: Henri M. Grobben, Michel H. F. Decoster