Patent ID: 7222710
Filing Date: 2007-05-29
Classification: B29C,B29D,B29L,C03B,Y02P

Abstract:
1. A conveyance device for conveying a load, comprising: a load supporting device having a through hole with a top opening, a bottom opening, and an inner circumferential plane, the through hole passing in a gravity direction and allowing the load to move through the top opening and the bottom opening of the through hole without changing a size of the through hole; and a fluid supplying device for supplying a fluid into the through hole through the inner circumferential plane to float the load in a first position within the through hole and for varying a net force in the gravity direction to move the load from the first position through the bottom opening of the through hole, wherein a porous material is provided at least at a portion of the inner circumferential plane of the through hole.