×

Electric toothbrushes having flexible necks

  • US 6,948,209 B2
  • Filed: 09/10/2003
  • Issued: 09/27/2005
  • Est. Priority Date: 09/13/2002
  • Status: Expired due to Term
First Claim
Patent Images

1. An electric toothbrush, comprising:

  • a handle having a cavity;

    a head;

    a flexible neck extending between said handle and said head, said flexible neck formed, at least in part, from a blend comprising a first and a second polymer or a mixture comprising a first and a second polymer. a movable bristle carrier disposed on said head;

    a motor disposed within said cavity;

    a shaft disposed within said flexible neck and operatively connected to said movable bristle carrier and to said motor;

    wherein said head and said flexible neck comprise a channel,said channel extending through said flexible neck and into said head; and

    wherein said neck can flex at least about 5 degrees when a force of at least about 4 N is applied to said head.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×