Patents by Inventor Wilhelmus P. C. Rietbergen

Wilhelmus P. C. Rietbergen 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: 4607361
    Abstract: In a record player having a loading mechanism for loading a disk (30), a rectilinearly retractable and extensible drawer (6) is provided, which carries a platform (15) and a pivotable pressure lever (24) with a disk loader (29). The drawer (6) has in side walls (9,10) grooves (14), in which the platform (15) is movable between an upper and a lower position in the direction of height with respect to the drawer, whereby the platform (15) in the lower position is located below the upper side of the turn-table (21). The platform (15) is held during a first part of the sliding-in movement by at least one positioning member (17) in the upper position in the grooves and is pressed during a second part of the sliding-in movement against at least one abutment stop (26), as a result of which it performs a substantially vertical movement with respect to the turn-table (21) in the grooves (14) to the lower position.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: August 19, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Pieter D. Schuitmaker, Wilhelmus P. C. Rietbergen