Patent ID: 8885868

Claim:
A loudspeaker, comprising: a driven body, responsive to electrical signals to undergo excursions from a rest position along an axis of motion, to project acoustic waves from a front of the loudspeaker; and a cupped suspension for providing a restoring force to the driven body towards the rest position, the suspension extending from an attachment point on the driven body to an attachment point on a fixed portion of the loudspeaker, wherein the attachment point on the fixed portion of the loudspeaker is displaced along the axis of motion relative to the attachment point on the driven body when the driven body is at rest; the cupped suspension comprising; a first concentric region of the suspension that is extendible to allow reciprocating axial movement of the driven body and has an edge attached to one of the attachment points, a second concentric region which extends transversely from the first region toward the other of the attachment points to form a frusto-conical cup, and a circumferential member affixed to the suspension at a location between the first and second concentric regions, the circumferential member being relatively stiff compared to the material forming the first and second concentric regions.