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US 7,251,847 B2Granted
Continuous wire spring mattress or seating product and method of manufacture
AssigneeL&P Property Management Company
InventorThomas W. Wells
Life of this patent
Estimating the term…
Abstract
A mattress or seating spring core assembly and method of manufacture which comprises interconnected rows of coil springs wherein each row terminates in a cut wire end which is bent inwardly into one of the end coils and in which the spring core assembly is surrounded on all sides by foam panels and is devoid of any border rods.
Claims7
A method of manufacturing a bedding mattress having a foam:
- encased spring assembly, which method comprises:
- forming a wire into a continuous row of interconnected coil springs;
- cutting said continuous row of coil springs into multiple continuous lengths of coil springs, each continuous length of coil springs containing multiple coil springs;
- bending the cut ends of said lengths of coil springs inwardly into the interior of an endmost coil in each length of coil springs;
- assembling multiple lengths of coil springs into a spring core assembly having adjacent continuous lengths of coil springs interconnected by helical lacing wires;
- said spring core assembly being devoid of border rods surrounding said spring core assembly;
- and
- encasing the sides of said spring core assembly within side border panels made from a foam material.
5 more elements
A method of manufacturing a foam encased spring assembly which comprises:
- forming a wire into a continuous row of interconnected coil springs;
- cutting said continuous row of coil springs into multiple continuous lengths of coil springs, each continuous length of coil springs containing multiple coil springs;
- bending the cut ends of said lengths of coil springs inwardly into the interior of an endmost coil in each length of coil springs;
- assembling multiple lengths of coil springs into a spring core assembly having adjacent continuous lengths of coil springs interconnected by helical lacing wires;
- said spring core assembly being devoid of border rods surrounding said spring core assembly;
- and
- encasing the sides of said spring core assembly within side border panels of a foam material.
4 more elements
A bedding mattress having a spring core assembly comprising:
- a plurality of rows of interconnected coil springs, each of said rows being formed from a single continuous wire;
- each of said rows of interconnected coil springs terminating in a cut end portion of wire, each of said cut end portions of wire being bent inwardly into one endmost coil spring of a row of interconnected coil springs;
- connectors securing adjacent rows of interconnected coil springs together to form a spring core assembly;
- said spring core assembly being devoid of border rods;
- and
- foam border panels encasing all sides of said spring assembly;
- and
- an upholstered fabric encasing said spring core assembly and said border panels.
5 more elements
A spring core assembly comprising:
- a plurality of rows of interconnected coil springs, each of said rows being formed from a single continuous wire;
- each of said rows of interconnected coil springs terminating in a cut end portion of wire, each of said cut end portions of wire being bent inwardly into one endmost coil spring of a row of interconnected coil springs;
- connectors securing adjacent rows of interconnected coil springs together to form a spring core assembly;
- said spring core assembly being devoid of border rods;
- and
- a foam border encasing all sides of said spring assembly.
3 more elements
Dependencies are inferred from the claim text.