Resources Contact Us Home
Plaque jack toothbrush

Image Number 4 for United States Patent #3978852.

A powered toothbrush cleans teeth and related embrasures by mechanically driving a small tuft of brush elements axially against the tooth surfaces to remove plaque and into and through the embrasures to push out food particles from the embrasures.The brush elements in the tuft have a length, texture, density, configuration and/or taper which enable the brush elements (particularly in the central part of the tuft) to penetrate directly into and through the embrasures while retaining sufficient flexibility (particularly on the periphery of the tuft) to effectively scour plaque from both convex and concave tooth surfaces as these brush elements are deflected toward lateral movement along the tooth surfaces by inward driving movement of the brush elements against the tooth surfaces.The tuft configuration and construction and the axial driving movement of the tuft enable the toothbrush to clean all normal tooth embrasures, regardless of the inclination of the brush handle between verticle and horizontal attitudes; and the size and shape of the tuft enable the brush to be effectively used to clean not only embrasures such as exist between adjacent teeth at the gum line but also crevices in tooth surfaces, the gingival (gum) cuff of both normal and diseased gums, the spaces between orthodontic applicances and teeth, the embrasures existing between bridgework and gums and such normally hard to clean spaces and surfaces as the embrasures between the roots of a tooth resulting from periodontal (gum) surgery.

  Recently Added Patents
Coordinate measuring device and method for measuring with a coordinate measuring device
Power conversion device for electric vehicle
Automated processing machine used for processing samples placed on slides and having an output device
Semiconductor device
Collaborative data redundancy for configuration tracking systems
Duty cycle adjustment of remote illumination source to maintain illumination output
Protecting a gaming machine from rogue code
  Randomly Featured Patents
Protein skimmer
Method for removing dependent store-load pair from critical path
Draw-off device with adjustable tension for circular knitting machine
Cosmetic applicator pen
Pneumatic tool
Method and apparatus for the transmission of information between track and vehicle of a model railroad
Helicobacter pylori haemagglutinin protease protein, nucleic acid encoding therefor and antibodies specific thereto
Intramedullary awl assembly for preparation for a femoral-style nailing
Top and propelling element