Resources Contact Us Home
Polishing instrument

Image Number 12 for United States Patent #6638151.

The present invention relates to a polishing instrument for polishing a surface into a predetermined configuration. The present invention aims to provide a polishing instrument superior in operability and stability and capable of polishing a surface into a desired configuration. The polishing instrument of the present invention includes: a rotatable rotary substrate portion equipped with a polishing plane holding a polishing material on its surface; a plurality of movable substrate portions equipped with polishing planes which hold the polishing material on their surfaces, which are provided in the peripheral edge of the rotary substrate portion, and which rotate about a connection line connecting them to the rotary substrate portion; and elastic members for biasing the polishing planes of the movable substrate portions toward a position where they are flush with the polishing plane of the rotary substrate portion.

  Recently Added Patents
Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
Method and apparatus for token-based context caching
Lightweight multicast method and apparatus for data distribution service
Pandemic protocol for emergency dispatch
Epoxy composition for encapsulating an optical semiconductor element
Communication apparatus, communication method, and communication system
  Randomly Featured Patents
Portable apparatus for reading an optical code
Method for manufacturing loop hanger for seat belt
Eyepiece zoom lens system
Length probe with tracing unit and switch arrangement
Non-disturbing electric field sensor using piezoelectric and converse piezoelectric resonances
Load monitoring circuit for electric motors
Fluorescent proteins, their production and use
Branched aromatic polycarbonate, and production method and blow-molded article thereof
Power transmission and pedal force sensing system for an electric bicycle