Patent ID: 8087114

Claim:
A spring mattress including a plurality of strings interconnected side by side, each string of the plurality of strings comprising: a continuous casing material with a plurality of pockets, said plurality of pockets being defined by at least one pocket defining longitudinal connecting line extending parallel to a longitudinal direction of the string and a plurality of transverse connecting lines extending transversely to the longitudinal direction of the string, and at least one coil spring in at least one pocket of the plurality of pockets of the string, wherein portions of the casing material at the ends of the at least one coil spring are moved towards each other through the at least one coil spring and the portions of the casing material are connected to each other, the pocket defining longitudinal connecting line and the transverse connecting lines are at the side of the at least one coil spring and between neighboring coil springs, the plurality of strings are connected to each other via at least one string connecting longitudinal connecting line, the at least one pocket defining longitudinal connecting line and the at least one string connecting longitudinal connecting line coincide with each other, and the at least one pocket defining longitudinal connecting line and the at least one string connecting longitudinal connecting line form a continuous tab along the longitudinal direction of the string and extending away from the plurality of springs, the at least one pocket defining longitudinal connecting line and the at least one string connecting longitudinal connecting line configured to provide a separation between adjacent strings.