Patent ID: 6770001
Filing Date: 2004-08-03
Classification: A63F,G07F

Abstract:
A vacuum crane amusement apparatus having a target bin for housing a plurality of targets, a vacuum head including a peripheral lip at a first end for engaging a target in a sealing relationship, a pump for introducing suction at the peripheral lip to capture a sealingly engaged target, a control for maneuvering the vacuum head within the target bin, and an extraction chute for removing captured targets from the target bin, the apparatus further comprising:a plurality of targets in the target bin having an extraction surface characterized by a smooth contour engageable with the peripheral lip of the vacuum head in a sealing relationship, the extraction surface further characterized by at least one perturbation interrupting said smooth contour such that said perturbation thwarts capture of the target by the vacuum head if disposed between the peripheral lip of the vacuum head and the extraction surface by preventing a sealing engagement therebetween.