Patent ID: 7121600
Filing Date: 2006-10-17
Classification: A62B,B66C

Abstract:
1. A personnel transfer device comprising: a base; a top; a plurality of concentric sets of lacings extending between the base and top; an expander post coupled between the base and top for placing tension in the plurality of lacings extending between the base and the top; a hoist connection for attachment of the personnel transfer device to a hoist so that the personnel transfer device may be lifted to transfer personnel thereon from one place to another; the lacings including a set of inner lacings and a set of outer lacings the set of outer lacings comprising at least three flexible lacings of substantially equal length attached to the base and to the top at corresponding spaced apart locations and being attached toward the periphery of the base and the periphery of the top so that tension in the outer lacings causes the top to be substantially parallel to the base; and the set of inner lacings comprising flexible lacings attached to the base and the top at corresponding locations being spaced toward the center of the base and the top, and each inner lacing having a length between the base attachment location and the top attachment location that is at least as long as the substantially equal length of the at least three outer lacings so that the base and the top remain parallel when any of the set of inner lacings is also placed in tension.