Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Colin Brodrick0
Haydn Kelly0
Date of Patent
December 15, 2009
0Patent Application Number
118138530
Date Filed
January 20, 2006
0Patent Primary Examiner
Patent abstract
A barrel (14)for a gas powered ball machine of the type used to simulate balls propelled whilst playing ball sports, especially those machines used to propel balls with a raised seam, such as a baseball or softball. The barrel (14) has one or more openings (160) along its cylindrical length that allow expanding gas to escape as a ball is fired from the machine. The openings (160) assist in predicting the pressure and volume of gas required to repeatedly propel a ball at a predetermined speed from the ball machine.
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