Abstract: A method of coating a metallic object with a substantially invisible protective coating, wherein the coating comprises a first layer, a second layer, and a third layer, each layer comprising a metal oxide or a nitride. The method comprises placing the object in an atomic layer deposition (ALD) reactor; depositing a first layer comprising a metal oxide or a nitride on a surface of the object by ALD; depositing a second layer comprising a metal oxide or a nitride on the first layer by ALD; and depositing a third layer comprising a metal oxide or a nitride on the second layer by ALD, thereby forming the protective coating on the object.

Abstract: A protective coated object comprises an object having a surface and a coating on the surface. The coating comprises a first layer, a second layer, and a third layer, each layer comprising a metal oxide or a nitride. The coating may be substantially transparent relative to the surface. A method of coating an object with a protective coating comprises placing the object in an atomic layer deposition (ALD) reactor; depositing a first layer comprising a metal oxide or a nitride on a surface of the object by ALD; depositing a second layer comprising a metal oxide or a nitride on the first layer by ALD; and depositing a third layer comprising a metal oxide or a nitride on the second layer by ALD, thereby forming the protective coating on the object. The produced coating may be substantially transparent relative to the surface.

Abstract: A spring driven apparatus includes power shafts mounted upon a base, torsion springs mounted about the power shafts, power gears attached to the power shafts, a drive shaft for transferring energy generated by the torsion springs to a drive flywheel and to a rewind flywheel which is connected to a cam which actuates ratchet members which rotates the power shafts to rewind the torsion springs. The spring driven apparatus can run because of the power generated by the torsion springs, which are partially unwound each time, which generates useful power that can be used to propel golf carts, home generators and similar applications and also generates energy which goes back into the rewinding and resetting of the torsion springs.