Resources Contact Us Home
Sliding shell mechanism for a hollow puzzle

Image Number 4 for United States Patent #7438290.

A sliding shell mechanism includes a circumferential band, and a pair of portions attachable to the circumferential band, each portion having formed on an edge portion thereof an annular groove, the grooves being sized and configured to slidingly and matingly receive tongue portions of the circumferential band. The disclosed sliding shell mechanism may include additional circumferential bands and provide a hollow interior portion in which electronic circuits may be disposed.

  Recently Added Patents
Lipoprotein analysis by differential charged-particle mobility
Efficient implementation of hash algorithm on a processor
Electronic apparatus and manufacturing method of electronic apparatus
RFID device using single antenna for multiple resonant frequency ranges
Providing a multi-tenant knowledge network
Hand-held electronic display device
Buffering stop structure and corresponding packing case
  Randomly Featured Patents
Method of preparing perfluoropolyethers having regulated molecular weight from the product obtained by photochemical oxidation
Cassette adapter for playback device, such as a compact disk player
Fast fading packet diversity transmission method and system
Paint film structure formed on aluminum member or aluminum alloy member
Switching circuit for millimeter waveband control circuit
Net holder for boats
System and method for determining the number and value of coins in a coin dispensing machine
Patient support with weight-sensitive spring scale for controlling motor operation
Low profile internal combustion engine
Apparatus for processing coolant