Abstract: The present invention is a connector for an inflatable member. A portion of the connector extends within an internal volume of the inflatable member to define a recess for accepting a structural connection. The connector has an air-impermeable surface that is configured to maintain integrity of the inflatable member to allow the internal volume to be pressurized when the connector is bonded to an opening in a surface of the inflatable member. The connector can optionally pass through the opposing surface or otherwise engage the opposing surface to enhance its structural properties.

Abstract: This disclosure is directed to a paddle for a watercraft having an adjustable shaft with upper and lower telescoping shaft portions. A lever in the palm grip applies tension to a cable to compress a plug at the end of the upper shaft portion to frictionally engage the lower shaft portion.

Abstract: The present invention is a readily collapsible lightweight, support structure utilizing one or more three dimensional shapes formed from a material exhibiting compressive strength in a high longitudinal to transverse ratio. The composite anisotropic materials preferably comprise a reinforced polymer with continuous, high modulus unidirectional fibers.

Abstract: This disclosure is directed to a paddle for a watercraft having an adjustable shaft with upper and lower telescoping shaft portions. A lever in the palm grip applies tension to a cable to compress a plug at the end of the upper shaft portion to frictionally engage the lower shaft portion.

Abstract: A musical instrument, particularly a hand drum or a didgeridoo, molded of natural fiber-reinforced cellular composite materials designed to match tonal properties of wood. A sliding block cable tensioning device is employed to create tension on the skin.