Abstract: An airbeam includes at least a pair of inflatable beams each having an inner sleeve, middle sleeve and outer cover. Each sleeve is stitched to form flat side seams. The sleeves are inverted so that each flat side seam is disposed cantilevered inwardly on the inside of the sleeve. A linear common seam bisects the stitched side edges of the outer cover to form a pair of outer sleeves. One middle sleeve is nested within each outer sleeve. One inner sleeve is nested within each middle sleeve. One inner tube is nested in each inner sleeve. The nesting is arranged so that the side seams of the inner and middle sleeves are adjacent one another or overlap one another along, their entire length and so that the side seams of the outer cover are adjacent or overlap the side seams of the middle sleeve.

Abstract: An airbeam includes at least a pair of inflatable beams each having an inner sleeve, middle sleeve and outer cover. Each sleeve is stitched to form flat side seams. The sleeves are inverted so that each flat side seam is disposed cantilevered inwardly on the inside of the sleeve. A linear common seam bisects the stitched side edges of the outer cover to form a pair of outer sleeves. One middle sleeve is nested within each outer sleeve. One inner sleeve is nested within each middle sleeve. One inner tube is nested in each inner sleeve. The nesting is arranged so that the side seams of the inner and middle sleeves are adjacent one another or overlap one another along, their entire length and so that the side seams of the outer cover are adjacent or overlap the side seams of the middle sleeve.

Abstract: An inflatable frame using, in each beam of the structure twinned tubes or otherwise multiple adjacent parallel tubes in each beam. The frame may be used for a sport ball arresting structure for supporting a mesh netting to enclose a player using full-swing, full power hitting of a sport ball into the mesh.

Abstract: A pneumatically inflatable structure includes first and second parallel spaced apart pneumatic end support tubes and at least two opposed pairs of bowed criss-crossed pneumatic bracing tubes and an arched canopy extending over the support tubes and bracing tubes. Each of the end support tubes has first and second opposed ends each mountable to a base surface wherein each of the end support tubes forms a vertical arch having an apex when the structure is erect. The pneumatic bracing tubes have first and second ends wherein each of the first ends of the bracing tubes are secured to one of the first or second ends of one of the first or second end support tubes. Each of the second ends of the pneumatic bracing tubes are securable to substantially the apex or thereabouts of an opposed tube of the first or second end support tubes.

Abstract: A pneumatically inflatable structure includes first and second parallel spaced apart pneumatic end support tubes and at least two opposed pairs of bowed criss-crossed pneumatic bracing tubes and an arched canopy extending over the support tubes and bracing tubes. Each of the end support tubes has first and second opposed ends each mountable to a base surface wherein each of the end support tubes forms a vertical arch having an apex when the structure is erect. The pneumatic bracing tubes have first and second ends wherein each of the first ends of the bracing tubes are secured to one of the first or second ends of one of the first or second end support tubes. Each of the second ends of the pneumatic bracing tubes are securable the apex of an opposed of the first or second end support tubes.

Abstract: A segmented inflatable beam truss includes at least first, second and third separate inflatable beams mounted or mountable to one another and having, respectively, first, second and third lengths and a substantially constant diameter among all of the three beams. Each beam of the three separate beams includes an outer flexible substantially non-resilient sleeve along the entire length of the beam and an inner inflatable bladder extending substantially entirely along and in the entire length of the sleeve.

Abstract: An inflatable tent for mounting into the bed of a pickup truck. The tent includes at least one inflatable beam having opposite ends and extending, when mounted at its opposite ends to the bed, from a front of the bed to the rear of the bed. A flexible tent canopy is mounted to the inflatable beams. Each inflatable beam forms a substantially ogive shape when viewed in side elevation when inflated and mounted into the bed so as to dispose the opposite ends in releasably mounted engagement secured to interior opposite ends of the bed.

Abstract: A pneumatically inflatable structure including two adjacent pairs of bowed and criss-crossed pneumatic tubes mounted at their ends to a base wherein each of the two pairs of tubes form a frame defining a downwardly concave substantially domed enclosure, and a further vault-forming bowed pneumatic tube mounted to the base so as to be substantially vertical and sandwiched between adjacent ends of the two adjacent pairs of tubes. The two adjacent pairs of tubes and the vault-forming tube define an elongate open enclosure including the substantially domed enclosures and an inter-connected vaulted passage-way.

Abstract: A sport ball arresting structure may be characterized in one aspect as including an inflatable quadra-pod mounted on a substantially rectangular flexible planar base for placement on the ground. The quadra-pod includes four legs formed, when the quadra-pod is inflated, by two criss-crossed inflatable tubes forming a dome. The tubes are criss-crossed at a vertex of the quadra-pod. Lower ends of the four legs are mounted to the four corners of the base, one lower end per corner. A flexible net is mounted within the dome so as to drape completely across the interior of the dome and parallel to an entrance to the structure defined by a front pair of legs and a front edge of the base.

Abstract: One or more inflatable tubes are used to support a self-erecting tent. If two or more tubes then they may have at least one cross over criss-crossed in the manner of conventional domed tent poles. The tube or tubes are secured or releasably secured to the tent so that the tent is self-erecting as the tube or tubes are inflated. When two or more tubes are employed, the tubes may be connected by an auxiliary tube so that forcing pressurized air into one tube results in all tubes inflating simultaneously. The ends of the tubes are self-sealing so as to accommodate relatively high air pressure within the tube, in the order of 20-30 pounds per square inch inflated pressure, thereby providing a significantly rigid structure from which the tent is suspended.