Patent ID: 8161791
Filing Date: 2012-04-24
Classification: G01F

Abstract:
1. Validation and self test apparatus for a prover comprising in combination: a) a cylinder having an inlet and an outlet for fluid flow through said cylinder; b) a piston translatable within said cylinder between said inlet and said outlet; c) a rod extending longitudinally through said cylinder and attached to said piston; d) motive means for providing power to translate said rod and said piston toward said inlet; e) a shuttle interconnecting said rod with an element extending from said motive means; f) position locating means for determining the location of said shuttle as said piston moves toward said outlet upon actuation of clutch means for selectively disconnecting said element from said motive means to accommodate travel of said rod and said piston toward said outlet; and g) computation means for determining the quantity of fluid flow within said cylinder as a function of the locations of said shuttle determined by said position locating means.