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US 12,714,236 B2Granted
Pocketed spring assembly having dimensionally stabilizing substrate
AssigneeL&P Property Management Company
InventorsJason V. Jewett, Carsten Nyhues, Scott D. Reading
Life of this patent
Estimating the term…
Abstract
A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. A dimensionally stabilizing substrate is secured to at least some of the strings on one of the top and bottom surfaces of the strings. A scrim sheet is secured to at least some of the strings on an opposed surface of the strings to maintain the positions of the strings. The dimensionally stabilizing substrate is laterally rigid enough to maintain length and width dimensions of the coil spring assembly. However, the dimensionally stabilizing substrate is flexible enough to allow the pocketed spring assembly to be roll packed for shipping.
Claims20
A mattress comprising:
- a pocketed spring assembly comprising a plurality of parallel strings of springs joined together to form a pocketed spring assembly core, the strings of springs being made with a non-woven polypropylene fabric;
- a dimensionally stabilizing substrate secured to one of top and bottom surfaces of the pocketed spring assembly core to create the pocketed spring assembly, said dimensionally stabilizing substrate comprising a single sheet being made from the same non-woven polypropylene fabric as the fabric of the strings of springs for ease of recycling;
- cushioning materials;
- and
- an upholstered covering encasing said pocketed spring assembly and cushioning materials.
2 more elements
A mattress comprising:
- a pocketed spring assembly comprising a plurality of parallel strings of springs joined together to form a pocketed spring assembly core;
- a dimensionally stabilizing substrate comprising a single sheet secured to one of top and bottom surfaces of the pocketed spring assembly core to create the pocketed spring assembly;
- a scrim sheet secured to the other of the top and bottom surfaces of the pocketed spring assembly core;
- wherein said dimensionally stabilizing substrate and the scrim sheet are made of the same non-woven polypropylene for ease of recycling and the dimensionally stabilizing substrate is more rigid than the scrim sheet, the dimensionally stabilizing substrate being flexible enough in the height of the pocketed spring assembly to allow the pocketed spring assembly to be roll packed.
1 more element
A bedding product comprising:
- a pocketed spring assembly comprising a pocketed spring assembly core comprising parallel strings of springs joined together, each of said strings comprising a plurality of individually pocketed springs, each of said strings comprising a piece of fabric joined along a longitudinal seam, first and second opposed plies of fabric being on opposite sides of the springs, a plurality of pockets being formed along a length of said string by transverse seams joining said first and second plies, at least one spring being positioned in each said pocket;
- a dimensionally stabilizing substrate made of polypropylene and being secured to a portion of pocketed spring assembly core with adhesive, said dimensionally stabilizing substrate comprising only a single layer having a weight of at least two ounces per square yard;
- and
- a scrim sheet secured to another portion of the pocketed spring assembly core with adhesive to facilitate handling of the pocketed spring assembly and being made of polypropylene for ease of recycling, the dimensionally stabilizing substrate being more rigid than the scrim sheet, but bendable for purposes of roll packing the pocketed spring assembly.
1 more element
A bedding product comprising:
- a pocketed spring assembly comprising a plurality of parallel strings of springs joined together, each of said strings comprising a plurality of individually pocketed springs, each of said strings comprising a piece of fabric joined along a longitudinal seam, first and second opposed plies of fabric being on opposite sides of the springs, a plurality of pockets being formed along a length of said string by transverse seams joining said first and second plies, at least one spring being positioned in each said pocket;
- a dimensionally stabilizing substrate secured directly to either a top surface or a bottom surface of at least some of the strings, said dimensionally stabilizing substrate being cut from a continuous web unrolled from a roll;
- a scrim sheet made of polypropylene secured directly to the other surface of the top and bottom surfaces of said at least some of the strings,
- said dimensionally stabilizing substrate comprising a sheet made of polypropylene for ease of recycling, wherein said dimensionally stabilizing substrate does not bunch upwardly and form an irregular pattern as the scrim sheet does when subject to the same force.
1 more element
Dependencies are inferred from the claim text.