Patent ID: 7860265

Claim:
A diaphragm for a rotary loudspeaker driver which radiates sound at all frequencies in its range in a 360 degree horizontal pattern and can function as a full-range driver or can be implemented as a limited frequency range driver and that eliminates phase cancellation (a) comprising the diaphragm structure with sides which have parallel and straight edges and the edges of each of these sides are parallel with the central axis of rotation, each of these sides being a simple rectangle, and the diaphragm's cross section has at least three equal sides and which is light and rigid (b) the diaphragm has a structure on both ends of its axis for attaching bearings and one or more electric motors to a rigid structure or frame (c) the diaphragm that has at least three sides and when rotated along its central axis creates a positive pressure in the surrounding medium on all sides parallel to the axis of rotation and is not subject to phase cancellation of front and back waves (d) the diaphragm in which the width of each side is equal to the width of the wavelength of the highest frequency that is to be radiated uniformly in the horizontal plane (e) whereby the diaphragm may radiate sound evenly at all frequencies within its range in a horizontal 360 degree pattern and vertically along its entire length.