Systems, Science and Software

Other

Philip L Turner

Peter L Lagus

Robert W Gilkey

A game apparatus is provided and consists of nine tic-tac-toe arrangements whereby two teams answer questions until three tic-tac-toe arrangements are won in a vertical, horizontal or diagonal row to completely win the game.

Combination tic-tac-toe and question and answer game

A method and pycnometer apparatus are disclosed for accurately determining the volume of a condensed material sample. Equal free space volumes are established between a pair of gas filled chambers before and after insertion of a powder or solid sample within one of the chambers. The volume of the sample receiving chamber is increased to maintain equal free space volumes after the sample is inserted, the adjusted increase in volume providing a highly accurate determination of the volume of the sample. The apparatus may also be employed to determine the compressibility or the porosity of a material sample.

Method and apparatus for determining the volume of a condensed material

A pycnometer apparatus is disclosed for accurately determining the volume of a condensed material sample. Equal free space volumes are established in a pair of gas filled chambers before and after insertion of a sample of the condensed material within one of the chambers. The volume of the sample receiving chamber is increased to maintain equal free space volumes after the sample is inserted, the adjusted increase in volume providing a highly accurate determination of the volume of the sample. The apparatus may also be employed to determine the compressibility or the porosity of a material sample.

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Del Mar, CA, United States of America

Philip L Turner