Patent ID: 6727789
Filing Date: 2004-04-27
Classification: H04R

Abstract:
An electromagnetic transducer having, in combination,permanent magnet means forming a flux field extending in a direction between opposing pole faces across a working gap, an electrical signal coil, an elongate armature supported at one end thereof, extending through said coil and having its other end extending into said gap, said other end being vibratory in said direction, said other end having surfaces respectively opposing said pole faces and joined by a pair of lateral edges, a first snubber having a pair of surfaces respectively oriented to limit deflections of said other end in both directions parallel to the direction of the flux field, and a second snubber having portions thereof affixed to the permanent magnet means, said portions having a pair of surfaces respectively forming predetermined clearances from said pair of lateral edges to limit deflections of said other end of the armature in both directions perpendicular to the direction of the flux field.