Abstract: A cushioning device has two materials that are sealed together at their peripheral edges to form first and second sides and first and second ends. Positioned between the first and second materials is a middle material. The middle material has the top and bottom sides, a gap between the first side and the middle material and another gap between the second side and the middle material. In addition, the first material is sealed to the middle material's top side by a first set of interior welds. The second surface is sealed to the middle material's bottom surface by a second set of interior welds. The first set of welds on the middle material's top surface and the second set of welds on the middle material's bottom surface are not superimposed on each other or overlap each other.

Abstract: A cushioning device has two materials that are sealed together at their peripheral edges to form first and second sides and first and second ends. Positioned between the first and second materials is a middle material. The middle material has the top and bottom sides, a gap between the first side and the middle material and another gap between the second side and the middle material. In addition, the first material is sealed to the middle material's top side by a first set of interior welds. The second surface is sealed to the middle material's bottom surface by a second set of interior welds. The first set of welds on the middle material's top surface and the second set of welds on the middle material's bottom surface are not superimposed on each other or overlap each other.

Abstract: A cushioning device has a first material and an opposing second material that are sealed together at the peripheral edges to form a first (right) side, a first (head) end, a second (left) side, and a second (foot) end. Positioned between the first material and the second material is a middle material. The middle material has a top side, a bottom side, a first gap between the first side and the middle material and a second gap between the second side and the middle material. In addition, the first material is sealed to the middle material's top side at a first set of locations to form a first set of interior welds. The second surface is sealed to the middle material's bottom surface at a second set of locations to form a second set of interior welds. The first set of interior welds on the middle material's top surface and the second set of interior welds on the middle material's bottom surface are not superimposed on each other or overlap each other.

Abstract: A cushioning device has a first material and an opposing second material that are sealed together at the peripheral edges to form a first (right) side, a first (head) end, a second (left) side, and a second (foot) end. Positioned between the first material and the second material is a middle material. The middle material has a top side, a bottom side, a first gap between the first side and the middle material and a second gap between the second side and the middle material. In addition, the first material is sealed to the middle material's top side at a first set of locations to form a first set of interior welds. The second surface is sealed to the middle material's bottom surface at a second set of locations to form a second set of interior welds. The first set of interior welds on the middle material's top surface and the second set of interior welds on the middle material's bottom surface are not superimposed on each other or overlap each other.

Abstract: The present invention relates to a protective and pressure normalizing device for a body extremity, having a topside, an underside and two other sides. The device has, at a minimum, an support member and a joint aperture. In each embodiment, the support member has a lower portion, an intermediate portion, and an upper portion. The lower, intermediate, and upper portions, each contact at least a part of the body extremity, except the joint of the body extremity.

Abstract: An inflatable support pad wherein a first group of inflatable cells are in flow communication with each other, a second group of inflatable cells are in flow communication with each other, and the cells of the first group of cells are interleaved with the cells of the second group of cells whereby the cells are alternatively inflatable and alternately exhaustible. Seal seam portions or walls which separate adjacent cells have serpentine shapes and are disposed relative to each other to define alternately broad and narrow cell portions. The serpentine shapes are truncated to eliminate or reduce duck-billing.