Patents by Inventor Rolf Barman

Rolf Barman 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).

  • Process and arrangements for producing a toothbrush, the toothbrush, and also the use of the toothbrush
    Patent number: 7175238
    Abstract: A method and a device are described for manufacturing of a toothbrush from a starting-material which comprises a handle that runs into a neck part which divides into two equal and diverging arms/head parts, in which the bristle-carrying surface (bottom surfaces) of the head parts is approximately in a plane which runs parallel to the main axis of the toothbrush and head, and in which bristle which extend approximately vertically out from the surface is inserted and is of approximately equal of different lengths.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: February 13, 2007
    Inventor: Rolf Barman
  • Process for producing tooth brushes and blanks for use for same
    Patent number: 5114214
    Abstract: A process for producing a toothbrush produced thereby have the cavities (11, 12) arranged on the back side of the tooth brush head. The longitudinal axes (14a, 15a) for angling the head portions (13, 14, 15) relative to each other are arranged on or at the bristle-carrying side of the head portion directly opposite the associated cavity (11, 12). A blank for carrying out the process and a toothbrush produced thereby have the cavities (11, 12) arranged on the back side of the toothbrush head. The longitudinal axes (14a, 15a) for angling the head portions (13, 14, 15) relative to each other are arranged on or at the bristle-carrying side of the head portion directly opposite the associated cavity (11, 12).
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: May 19, 1992
    Inventor: Rolf Barman
  • Process for producing a toothbrush and toothbrushes produced by the process
    Patent number: 4938539
    Abstract: A toothbrush blank having a handle, a pair of head portions provided with a plurality of bristles receiving bores on one side of the head portions, and a narrow hinge-forming V-shaped cavity or groove formed on the same bristle receiving side of the head portions. The V-shaped groove enables the head portions to be bent in a convex arch so that the bristles can be cut and polished in a common plane. Thereafter, the head portions are bent towarad each other into a finished condition where the side surfaces of the V-shaped groove form support abutments which are glued or welded against each other.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: July 3, 1990
    Inventor: Rolf Barman
  • Process for producing a toothbrush and a toothbrush blank for use in the process
    Patent number: 4876157
    Abstract: A toothbrush blank having a handle, a pair of head portions provided with a plurality of bristles receiving bores on one side of the head portions, and a narrow hinge-forming V-shaped cavity or groove formed on the same bristle receiving side of the head portions. The V-shaped groove enables the head portions to be bent in a convex arch so that the bristles can be cut and polished in a common plane. Thereafter the head portions are bent toward each other into a finished condition where the side surfaces of the V-shaped groove form support abutments which are glued or welded against each other.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: October 24, 1989
    Inventor: Rolf Barman
  • Toothbrush
    Patent number: D525433
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: July 25, 2006
    Inventor: Rolf Barman
  • Toothbrush
    Patent number: D324310
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: March 3, 1992
    Inventor: Rolf Barman