Abstract: In one embodiment, a rotor is coupled to the support such that the rotor can rotate about an axis of rotation relative to the support. The rotor has a first surface for supporting a piece of flexible material at a diameter D about the axis of rotation. The carriage is coupled to the support such that the carriage is constrained to slide parallel to the axis of rotation of the rotor. A second plurality of pulleys comprises a third pulley, a fourth pulley, and a fifth pulley. The piece of flexible material is coupled to the rotor, then helically wound around the first surface of the rotor with a lead l, then wrapped around the third pulley, then wrapped around the first pulley, then wrapped around the fourth pulley, then wrapped around the second pulley, then wrapped around the fifth pulley, then coupled to the support.

Abstract: Rotary-to-linear transmission systems are disclosed comprising a support, at least one pulley coupled to the support, a rotor having an axis of rotation, a carriage, at least one pulley coupled to the carriage, and at least one piece of flexible material coupled to the rotor, wound around the rotor, wrapped around at least one pulley coupled to the carriage, wrapped around at least one pulley coupled to the support, and wound around the rotor again.

Abstract: A primary objective of the present embodiments is to provide a transmission that may be simple in design, low in weight, and have a reduced cost of manufacture while being capable of a relatively high ratio.

Abstract: A rotor system is provided wherein coaxial, closely spaced multi-bladed rotors counter-rotate at extremely low RPMs while their pitches are controlled to account for wind gusts and velocity conditions, thereby eliminating many of the deficiencies of conventional helicopters. The embodiments can dramatically decrease the power required to lift a given quantity of weight, even beyond the level required by a typical airplane.

Abstract: According to one embodiment, an electric actuator is provided comprising windings constructed from a conductive core of high magnetic permeability material surrounded by an electrical insulator. The conductive core simultaneously carries an electric current and a magnetic field, resulting in an actuator that can develop a high force or torque for its size compared to conventional electric actuators.

Abstract: The present invention includes an apparatus that can be used for easily relating properties of a miniature to an off-miniature reference. Because the game properties are off the miniature, there is unlimited space available for tracking them.

Abstract: The present invention includes an apparatus that can be used for easily relating properties of a miniature to an off-miniature reference. Because the game properties are off the miniature, there is unlimited space available for tracking them.