Electric toothbrush having a flexible drive shaft

Details Electric toothbrush having a flexible drive shaft Electric toothbrush having a flexible drive shaft

2008-07-15

2008-07-15

Karls, Shay L (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C015S022200

Reexamination Certificate

active

11052593

ABSTRACT:
An electric toothbrush is disclosed comprising a body, a head, and a neck extending therebetween. A motor, drive train, and one or more batteries impart motion to the collection of movable bristles. A spring component is provided in the drive train that is configured to absorb excessive loads that would otherwise be transmitted to the motor. Reducing or eliminating application of such excessive loads on the motor extends battery life.

REFERENCES:
patent: 3757375 (1973-09-01), Strom
patent: 4081876 (1978-04-01), Pugh
patent: 4845795 (1989-07-01), Crawford et al.
patent: 4894880 (1990-01-01), Aznavoorian
patent: 5046213 (1991-09-01), Curtis et al.
patent: D330286 (1992-10-01), Curtis et al.
patent: 5226206 (1993-07-01), Davidovitz et al.
patent: 5335389 (1994-08-01), Curtis et al.
patent: 5359747 (1994-11-01), Amakasu
patent: 5383242 (1995-01-01), Bigler et al.
patent: 5392483 (1995-02-01), Heinzelman et al.
patent: 5404608 (1995-04-01), Hommann
patent: 5446940 (1995-09-01), Curtis et al.
patent: 5465444 (1995-11-01), Bigler et al.
patent: 5504959 (1996-04-01), Yukawa et al.
patent: 5524312 (1996-06-01), Tan et al.
patent: 5617601 (1997-04-01), McDougall
patent: 5732432 (1998-03-01), Hui
patent: 5836030 (1998-11-01), Hazeu et al.
patent: 5987681 (1999-11-01), Hahn et al.
patent: 6006394 (1999-12-01), Bredall et al.
patent: D434563 (2000-12-01), Lim et al.
patent: 6178579 (2001-01-01), Blaustein et al.
patent: 6189693 (2001-02-01), Blaustein et al.
patent: 6360395 (2002-03-01), Blaustein et al.
patent: 6371294 (2002-04-01), Blaustein et al.
patent: 6381795 (2002-05-01), Hoffman et al.
patent: 6836917 (2005-01-01), Blaustein et al.
patent: 2003/0226223 (2003-12-01), Chan
patent: WO 99/23910 (1999-05-01), None

Affiliated with

Also associated with

Rating

Electric toothbrush having a flexible drive shaft does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric toothbrush having a flexible drive shaft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric toothbrush having a flexible drive shaft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3956579