Patents by Inventor Alfons Frei

Alfons Frei 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: 5761813
    Abstract: In a razor device (10) with handle-like foam container (12) and a cap (22) which is releasable therefrom and which covers over a foam outlet valve (18), that is surrounded by a sliding guide ring (70), of the foam container (12) and is movable relative thereto, in the cap (22) at least two retaining noses (50, 50a) which are arranged on a common diameter are disposed as guide portions on both sides of a central projection (42) in substantially radially oppositely disposed relationship and can each be lowered into a slot (72) of the guide ring (70), wherein each slot (72) is separated by means of a radial bead from a guide surface of the guide ring (70). Each slot (72) can be flanked on both sides by a respective bead which is adjoined by a taper face with an upwardly inclined surface.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: June 9, 1998
    Inventors: Hans-Ruedi Frick, Alfons Frei