Resources Contact Us Home
Sponge prophy

Image Number 5 for United States Patent #7785106.

A dental prophy chip with a hollow core of different shapes such as canopy, cylinder, cup and inverted cone, is covered by hydrophilic grindstone sponge containing a polishing agent and its edge is either pressed fixed or folded into the interior of the core with a latch plate. A shaft is fixed to the latch plate to avoid resonance at bottom surface, during rotation. The device maintains polishing efficiency by avoiding transverse oscillation in polishing barrel-shaped tooth clearance and reducing frictional heat.

  Recently Added Patents
Device and method for unified codes
Magnifying glass
Diagnostic data interchange
Method and apparatus for interactive distribution of digital content
PLL circuit
Cylindrical lithium secondary battery comprising a contoured center pin
Systems and methods for tracking mobile terrestrial terminals for satellite communications
  Randomly Featured Patents
Extruder having degree-of-kneading adjusting device
Temporary abutment
Repair tool for injection molding hot runner system
Sheet conveying device, image reader, and image forming apparatus
Efficient system for predicting and processing storage subsystem failure
Negatively charged toner for use in electrostatography
Bumping block for a track device of a desk
Digital sampling apparatuses and methods
Wood chipper knife holder system for a power driven rotor head