Non-linear electromagnetic vibration device

A non-linear electromagnetic vibration device comprising:

• a first vibrating part including,
• a base,
• at least a first end unit connected to said base,
• an armature connected at one end to said end unit, and
• an electromagnetic coil mounted about said armature;
• a second vibrating part including,
• a base,
• a generally U-shaped electromagnetic core mounted about said armature and said coil and operably connected to said base, a free end portion of said armature extends into said generally U-shaped electromagnetic core to a posture wherein the free end of the armature is adjacent to but spaced from a base portion of said generally U-shaped electromagnetic core;
• means for operably connecting said first vibrating part to said second vibrating part to permit relative motion between said first vibrating part and said second vibrating part;
• said means for operably connecting said first and second vibrating parts including,
• at least a first generally rectangular, non-linear, bellows plate spring wherein a central portion of said spring is provided with an aperture and is rigidly bolted to said first vibrating part and edge portions of said spring are each provided with an aperature and are rigidly bolted to said second vibrating part;
• and
• electrical power means connected to said electromagnetic coil for supplying electrical current pulses to said coil and electromagnetically inducing movement of said armature within said core in opposition to a non-linear restoring spring force of said at least one generally rectangular, non-linear bellows plate spring operably extending between said first vibrating part and said second vibrating part, whereby a resonate, non-linear electromagnetic vibration may be induced between said first vibrating part and said second vibrating part.