Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method for producing semiconductor substrate, semiconductor substrate, method for manufacturing electronic device, and reaction apparatus
Apparatus and method for transmitting and receiving data streams in wireless system
Nanogap device for field enhancement and a system for nanoparticle detection using the same
Heating pad
DL control channel structure enhancement
Native NAD-dependent GAPDH replaced with NADP-dependent GAPDH plus NADK
Systems and methods for adaptive blind mode equalization
  Randomly Featured Patents
Automated generation of theoretical performance analysis based upon workload and design configuration
Pet bowl
Torque transducing systems for impact tools and impact tools incorporating such systems
Fast computation of loop free alternate next hops
Module level scan testing
Jet air recovery generator and jet blast deflector
Combination surgical trocar cannula and rake assembly
Electrode activating compound for gas discharge tube
Compression and decompression of configuration data using repeated data frames
Magnetic thin film head, the fabrication method, and magnetic disk