Patents by Inventor Gerardus J. H. Roddeman

Gerardus J. H. Roddeman 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).

  • Toothbrush having a brush holder movable against spring force
    Patent number: 5901397
    Abstract: In a toothbrush (1) comprising a stationary part (10) and a brush holder (24) which is movable with respect to the stationary part (10), and comprising a spring (48) which acts between the stationary part (10) and the brush holder (24), a link-motion device (49) is arranged between the stationary part (10) and the brush holder (24), in addition to the spring (48), in order to obtain a desired force characteristic, which link-motion device (49) is loaded by the spring (48) and comprises a link-motion follower (51) and a link-motion surface (50) having two link-motion surface portions (52, 53), the two link-motion surface portions (52, 53) adjoining one another by an edge-like transition portion (54).
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: May 11, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Peter Hafele, Gerardus J. H. Roddeman, Arno Wolfger
  • Pressure roller arrangement for a paper transport device
    Patent number: 4629177
    Abstract: A device for transporting a flexible strip (11) along a guide (15) by means of conical pressure rollers (35 and 45), whose apices face each other. The pressure rollers (35 and 45) are loaded by a spring (65, 135) common to both rollers, as a result of which an accurately defined directional force is obtained towards the guide (15).
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: December 16, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Gerardus J. H. Roddeman, Paul Hoogerkamp