Patent ID: 7055812

Claim:
A coil spring comprising: a plurality of non-overlapping primary canted round wire coils, each having a major and a minor axis and canted along a coil centerline defined by an intersection of the primary coil major and minor axis; and a plurality of secondary canted round wire coils, having a major and a minor axis and canted along a coil centerline defined by an intersection of the second coil major and minor axis, the primary and secondary coils being offset from one another, contiguous and differentiated from one another by a dimensional size in order to provide variable force and variable deflection, said secondary wire coils being disposed between adjoining and contiguous primary wire coils, said primary and secondary coils being joined to form a garter spring and said primary and secondary coils being disposed with one of a concave turn angle and a convex turn angle within the gater spring.