Abstract: A pneumatic mattress has two edge cells and transverse inner cells, arranged in adjacent pairs as alternate cells. An inflation hose has internal pipes, which receive alternating pneumatic pressure for the cells via extensions to connectors at both ends of cells. The edge cells are physically connected to the inner cells via the connectors.

Abstract: A pneumatic mattress has two edge cells and transverse inner cells, arranged in adjacent pairs as alternate cells. An inflation hose has internal pipes, which receive alternating pneumatic pressure for the cells via extensions to connectors at both ends of cells. The edge cells are physically connected to the inner cells via the connectors.

Abstract: A pneumatic mattress (1) has two edge cells (2,3) and a even plurality of transverse inner cells, arranged in adjacent pairs as alternate cells (4) and cells (5). An umbilical inflation hose (6) is provided with three internal pipes (7,8,9). Pipe (7) receives constant pneumatic pressure and has a pipe extension (17) to pneumatic connectors (27) for the edge cells (2,3). Pipe (8) receives alternating pressure for cells (4) via extensions (18) to connectors (28). Pipe (9) receives alternating pressure for cells (5) via extensions (19) to connectors (29). The connectors (28,29) are T connectors having a stem welded into the bottom of their cells (4,5). The connectors (28,29) are in lines (38,39). Each cell has a connector at both ends, whereby there are lines (38 & 39) at both sides of the plurality of inner cells (4,5). The edge cells (2,3) are formed by folding and seaming a sheet of polyurethane material leaving a pair of strips (11) on top of each other.

Abstract: A pneumatic mattress (1) has two edge cells (2,3) and a even plurality of transverse inner cells, arranged in adjacent pairs as alternate cells (4) and cells (5). An umbilical inflation hose (6) is provided with three internal pipes (7,8,9). Pipe (7) receives constant pneumatic pressure and has a pipe extension (17) to pneumatic connectors (27) for the edge cells (2,3). Pipe (8) receives alternating pressure for cells (4) via extensions (18) to connectors (28). Pipe (9) receives alternating pressure for cells (5) via extensions (19) to connectors (29). The connectors (28,29) are T connectors having a stem welded into the bottom of their cells (4,5). The connectors (28,29) are in lines (38,39). Each cell has a connector at both ends, whereby there are lines (38 & 39) at both sides of the plurality of inner cells (4,5). The edge cells (2,3) are formed by folding and seaming a sheet of polyurethane material leaving a pair of strips (11) on top of each other.

Abstract: A cable includes a pre-selected number of binder units. Each binder unit includes an even number of paired couples of conductors, evenly divided into quads, and an additional twisted pair of conductors, coupled with and encircled around a length of a filler material, extended in parallel so the quads of conductor pairs surround the additional pair of conductors and the filler material. A binder unit wrap encloses each binder unit and a foil free edge tape is applied with the foil facing inwardly and a drain wire pulled between the foil and the unit wrap. An overall core wrap encloses each binder unit, and a shield is applied over the top of the overall core wrap such that the shield surface faces inwardly for improved termination methods. An overall drain wire is placed between the overall core wrap and overall shield. The entire cable may be enclosed by a jacket or sheath. A method for forming the cable is also disclosed.