Abstract: A panel for an aircraft cargo pallet and other structures including a bottom skin member, a spaced apart top skin member, and core located between the bottom skin member and the top skin member. The core includes a plurality of spaced apart and parallel ribs coupled along their top edges to the top skin member and along their bottom edges to the bottom skin member.

Abstract: The invention pertains to a system for handling pump or sucker rod for oil wells wherein the sucker rod is formed of a continuous length of glass fiber rod, i.e. glass filaments embedded within a resin. The rod is stored upon a reel and is dispensed therefrom when inserting the rod into a well, or is wound upon the reel when removing the rod. In embodiments of the system, the reel is power operated, or the rod may be directly engaged and driven adjacent the well. The rod is supported at transition locations to prevent stresses which would tend to delaminate the filaments, and fittings are disclosed for mounting upon the rod, or retrieving broken rod.

Abstract: A composite sucker rod string for connecting a subsurface well pump to a surface pumping unit utilizes a plurality of relatively elastic sucker rods, such as, polyfilament reinforced, resin bonded sucker rods in conjunction with a plurality of relatively inelastic sucker rods, such as, steel sucker rods, with the lengths and other parameters of the relatively elastic and relatively inelastic portions of the sucker rod string being selected to provide optimum pumping performance within the constraints imposed by the characteristics of the well and pumping equipment.