Patent ID: 7448522
Filing Date: 2008-11-11
Classification: A45F,A63B

Abstract:
1. A bladder for use with a strap to carry a load comprising, in combination: at least one longitudinal chamber; a plurality of transverse chambers, each transverse chamber being connected at a first end thereof to the at least one longitudinal chamber, being in fluid communication with the at least one longitudinal chamber and each other transverse chamber, and having a longitudinal axis extending substantially parallel to the longitudinal axis of the other transverse and at an acute angle with respect to a longitudinal axis of the bladder, the plurality of transverse chambers being the only chambers connected to and in fluid communication with the first and second longitudinal chambers, the transverse chambers and the at least one longitudinal chamber defining a sealed bladder free of any openings; and a plurality of apertures, each aperture being disposed between adjacent transverse chambers serving to space adjacent transverse chambers from one another, and having a longitudinal axis extending substantially parallel to a longitudinal axis of each of the transverse apertures.