Abstract: A lightweight airfoil having a skin over a frame, and manufacturing process therefore, in which the airfoil is formed by coring a sheet of support material, attaching skin material to the cored sheet of support material to form a laminate, and defining an outer portion of the airfoil from the laminate, and then defining the frame in the support material, for example, by compressing the support material proximate the frame. The airfoil may be defined by trimming excess material from the laminate proximate an outer portion of the frame. A single sheet of support material, such as expanded polystyrene, can span in each of these steps.

Abstract: A light emitting apparatus including an emitter configured to emit electromagnetic radiation of a predetermined spectrum including visible light and infrared light, and a plurality of focusing chambers, each focusing chamber including an aperture, wherein light from the emitter passes successively through at least a first of the chambers and an aperture of the first chamber, and through a second of the chambers and an aperture of the second chamber before exiting the apparatus.

Abstract: A light emitting apparatus including an emitter configured to emit electromagnetic radiation of a predetermined spectrum including visible light and infrared light, and a plurality of focusing chambers, each focusing chamber including an aperture, wherein light from the emitter passes successively through at least a first of the chambers and an aperture of the first chamber, and through a second of the chambers and an aperture of the second chamber before exiting the apparatus.

Abstract: Currency dispensing apparatus is disclosed in which vertically stacked bills located in a removable container positioned in the dispenser are fed one-by-one from the top of the stack through an opening in the container ceiling by a proximately located overlying rotary suction head. The head advances the bills to the nip of a pair of superimposed bill transport belts overlying the stack from which point they are then transported by the belts back over the top of the stack to a diverter whereat the bills are either diverted to an underlying reject bin located adjacent the stack or to a delivery chute for manual removal by a customer. A multiple, or overlapped, bill sensor is located along the bill transport path between the suction pickup head and the diverter which, in cooperation with suitable control circuitry responsive to the sensor, controls the diverter for diverting multiple, or overlapped, bills into the underlying reject bin while allowing single bills to be transported to the customer delivery chute.