Patent ID: 6240793
Filing Date: 2001-06-05
Classification: F15B,G01M

Abstract:
A testing apparatus for confirming presence of all of at least one ring within a groove of an article of manufacture during assembly of said article of manufacture, the testing apparatus comprising:a test head having an opening with a first amount of air flow through said opening when said opening is not placed onto said groove of said article of manufacture;and wherein said opening of said test head is placed onto said groove of said article of manufacture resulting in a second amount of air flow through said opening, and wherein said second amount of air flow depends on the presence of each of said at least one ring within said groove;a test head air pressure sensor, coupled to said opening of said test head, for measuring said second amount of air flow through said opening; anda microcontroller, operatively coupled to said test head air pressure sensor, for determining the presence of all of said at least one ring within said groove from said second amount of air flow through said opening as measured by said test head air pressure sensor.