Patents by Inventor Norman C. Welsh

Norman C. Welsh 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).

  • Flexible safety razors
    Patent number: 4964214
    Abstract: A safety razor comprises one or more blade members presenting a plurality of cutting edges, and a holder of readily deformable material surrounding the blade member (or members). The edges being displaceable, relative to each other, to follow local deformation of the material.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: October 23, 1990
    Assignee: The Gillette Company
    Inventors: Norman C. Welsh, Oliver D. Oglesby
  • Toothbrushes
    Patent number: 4362174
    Abstract: A toothbrush system comprises a dispensing container for a number of exchangeable toothbrush heads engageable in turn with a common handle which can be firmly engaged with an individual head while the head is held in the container. The container is further provided with a special chamber adapted for receiving the head and disengaging the head from the handle.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: December 7, 1982
    Assignee: The Gillette Company
    Inventors: Hugh W. B. Baker, Charles C. Packham, Norman C. Welsh