Abstract: Embodiments disclosed herein present a spring system for use in a torque dependent rotor assembly designed to operate in resonance, where changes in applied torque controls the blade pitch angle and ultimately the movements of a rotary wing aircraft. More specifically, the present invention relates to a spring system used in such a rotor assembly where the stiffness of an associated spring member is allowed to vary in response to the torque applied from a motor to the assembly.

Abstract: The present embodiments disclose a torque dependent and resonant operating thrust-generating rotor assembly including a cyclic pitch control system for controlling tilting moments about a longitudinal rotor blade axis of one or more rotor blades, in order to control the pitch angle of the rotor blades and thereby also the horizontal movements of a helicopter vehicle or a rotary wing aircraft. A rotor torque assembly of the rotor assembly is further configured to operate in resonance, thereby providing a resonant gain effecting a rotational offset in relation to changes in torque generated by the motor.

Abstract: Provided herein is a rotor attachment assembly for an aircraft. A rotor attachment assembly includes a connecting assembly associated with the aircraft and a rotor assembly configured to be connected to the connecting assembly. The rotor assembly includes a plurality of fins configured to fit a respective plurality of cut-outs of the connecting assembly, a hollow section configured to accommodate at least a part of a pin of the connecting assembly so as to center the rotor assembly relative to the connecting assembly, and a spring configured to expand to allow the fins to pass and to close to retain the fins when the rotor assembly is connected to the connecting assembly.

Abstract: Embodiments disclosed herein present a spring system for use in a torque dependent rotor assembly designed to operate in resonance, where changes in applied torque controls the blade pitch angle and ultimately the movements of a rotary wing aircraft. More specifically, the present invention relates to a spring system used in such a rotor assembly where the stiffness of an associated spring member is allowed to vary in response to the torque applied from a motor to the assembly.

Abstract: The present embodiments disclose a torque dependent and resonant operating thrust-generating rotor assembly including a cyclic pitch control system for controlling tilting moments about a longitudinal rotor blade axis of one or more rotor blades, in order to control the pitch angle of the rotor blades and thereby also the horizontal movements of a helicopter vehicle or a rotary wing aircraft. A rotor torque assembly of the rotor assembly is further configured to operate in resonance, thereby providing a resonant gain effecting a rotational offset in relation to changes in torque generated by the motor.

Abstract: Provided herein is a rotor attachment assembly for an aircraft. A rotor attachment assembly includes a connecting assembly associated with the aircraft and a rotor assembly configured to be connected to the connecting assembly. The rotor assembly includes a plurality of fins configured to fit a respective plurality of cut-outs of the connecting assembly, a hollow section configured to accommodate at least a part of a pin of the connecting assembly so as to center the rotor assembly relative to the connecting assembly, and a spring configured to expand to allow the fins to pass and to close to retain the fins when the rotor assembly is connected to the connecting assembly.

Abstract: An elevatable microphone support for an audio or videoconferencing system, including: a hoisting mechanism, which includes a base section and a top/crown section, wherein the base section includes a first circular member and a second circular member, the first circular member and the second circular member are concentric with each other, and the first circular member is freely rotatable with respect to the second circular member or the second circular member is freely rotatable with respect to the first circular member, the top/crown section includes a third circular member, and the base and the top/crown section are joined by two or more pairs of links, a first half of said two or more pairs of links are connected to said first circular member, and a second half of said two or more pairs of said links are connected to said second circular member, and all said two or more pairs of links are connected to said third circular member, by revolving joints.

Abstract: A collapsible multimedia terminal comprising three main sections—a base section, a mid section and a top section, including a screen, a camera, a microphone and a speaker system, wherein the three main sections are joined by revolving joints and that rods are arranged to the top section and the base section to guide the motion of the three sections with respect to each other from a fully collapsed position to a fully extended position.

Abstract: A hoisting mechanism comprises two main modules; a base (1) and a top-section (8). The base supports two concentric rings (2 and 3) with three or more flexible links (5 and 6) pivotally connected to each ring. There is one inner (6) and one outer (5) set of links, where the inner (6) set is pivotally connected to an inner ring (2) and the outer (5) set is pivotally connected to an outer ring (3). A ring (4) at the top is connected to all of the flexible links with rotary joints (9). When the two rings (2, 3) in the base are rotated in opposite directions, the flexible links (5 and 6) will force the top ring (4) to move up or down depending on the direction of which the concentric rings are turned.

Abstract: A collapsible multimedia terminal comprising three main sections—a base section, a mid section and a top section, including a screen, a camera, a microphone and a speaker system, wherein the three main sections are joined by revolving joints and that rods are arranged to the top section and the base section to guide the motion of the three sections with respect to each other from a fully collapsed position to a fully extended position.