Patent ID: 7578016

Claim:
A one-sided innerspring assembly comprising: a plurality of spring coils each comprising a length of spring wire formed at opposite upper and lower wire ends in respective upper and lower end turns and in an intervening coil extent therebetween, the spring coils being arranged side by side one another in parallel linear spring coil rows and parallel linear spring coil columns perpendicular to the spring coil rows, with the upper end turns of the spring coils essentially coplanar with each other and with the lower end turns essentially coplanar with each other, the lower end turn of each spring coil being closed by a knot formed between the lower wire end and the coil extent, the upper end turn of each spring coil of a first selected number of the spring coils being open with the upper wire end unknotted to the coil extent, the upper end turn of each spring coil of a second selected number of the spring coils being knotted with the upper end turn being closed by a knot formed between the upper wire end and the coil extent; and a plurality of connector wires integrating the upper end turns and lower end turns of the spring coils, respectively, for forming a stable lower base of the spring assembly.