Patents by Inventor John Raven

John Raven 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 with flexibly mounted bristles
    Patent number: 5991959
    Abstract: A toothbrush having a handle at one end thereof and a bristle bearing head, the head having a skeleton, a resilient member mounted on at least one side of the skeleton, tuft mounts in the skeleton and/or resilient member for receiving bristles, the resilient member bristle tufts being capable of toggling movement, the resilient member tuft mounts having an array of rigid receptacles or wells attached to the skeleton by a bridge hinge, characterised in that the bridge hinges are broken.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: November 30, 1999
    Assignee: Chesebrough-Pond's USA Co.,
    Inventors: Stephen John Raven, Derek Guy Savill
  • Brush having an elastomeric bridge
    Patent number: 5970564
    Abstract: A brush having a handle at one end thereof and a bristle bearing head characterised in that the bristles are anchored in an elastomeric bridge disposed between the bristles and the head, the bridge forming a bond between the bristles and the head.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 26, 1999
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: George Richard Inns, Stephen John Raven, Derek Guy Savill
  • Oral compositions
    Patent number: 5833952
    Abstract: The invention relates to the use of stannous compounds to combat bad breath. Preferably, the stannous compound is used together with a zinc compound. A preferred stannous compound is stannous pyrophosphate, and a preferred zinc compound is zinc citrate. The compounds are preferably included in an oral care composition such as a dentifrice or a mouth wash.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: November 10, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Janet Grigor, Stephen John Raven
  • Toothbrush with flexibly mounted bristles
    Patent number: 5802656
    Abstract: A toothbrush is provided having a handle and a bristle bearing head. The head includes a central skeleton, resilient side members mounted on either side of the central skeleton, tuft mounting receptacles in both the skeleton and the side members, and bristle forming tufts received in both the tuft mounting receptacles of the skeleton and of the side members. The side member bristle tufts are movable both sideways and downwards in a toggling movement relative to the bristle tufts stationarily mounted on the skeleton.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 8, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Peter Leonard Dawson, Bert Davis Heinzelman, Donald Richard Lamond, John Moldauer, Stephen John Raven
  • Bridge circuits
    Patent number: 4174639
    Abstract: Improved bridge circuits are described for offsetting span errors, for making scale adjustments and for providing for a non-linear output.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: November 20, 1979
    Assignee: American Chain & Cable Company, Inc.
    Inventor: John Raven
  • Toothbrush
    Patent number: D401069
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: November 17, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Donald Richard Lamond, John Moldauer, Stephen John Raven, Derek Guy Savill