Patents Examined by Edward Roberts
  • Electric toothbrush with demountable brush section
    Patent number: 5289604
    Abstract: An electric toothbrush has a brush section which is demountable from a handle section that has a protruding brush drive shaft. Radial and axial securing of the brush section to the handle section is accomplished by structure separated by function, including radial securing structure at the base of the brush section that engages cooperating structure at the end of the handle section from which the drive shaft protrudes, and axial securing structure housed within the brush section that engages the protruding drive shaft of the handle section.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: March 1, 1994
    Assignee: Braun Aktiengesellschaft
    Inventor: Gerhard Kressner