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| Number | Title | Issue Date |
| 7232500 | Method and device for producing products in web form This invention pertains to methods and devices for producing products in web form. In particularly advantageous embodiments, the instant invention relates to methods and devices for forming films by coating a coating mass formed from organic raw materials in an aque... | 06/19/2007 |
| 7194777 | Pocket mattress with varying height A mattress comprising coil springs arranged as spring units in covering pockets, a so-called pocket mattress, is provided. The spring units of the mattress are arranged in succession in elongate strings, the mattress comprising a plurality of such interconnected str... | 03/27/2007 |
| 7063309 | Mattress spring structure The invention concerns a mattress spring structure that includes multiple spring assemblies. Each spring assembly comprises an array of open-ended spring coils. The spring assemblies are arranged in superimposed relationship with the individual spring coils of the r... | 06/20/2006 |
| 7048263 | Separated pocket spring mattress A spring mattress comprising a plurality of interconnected coil springs (1) enclosed in covers (2), known as a pocket-spring mattress, is described, wherein at least two springs that are located adjacent to one another are spaced apart by an interjacen... | 05/23/2006 |
| 6966091 | Coil innerspring assembly having varying degrees of firmness An innerspring assembly comprising at least two sets of coil springs. In one embodiment, a first set of coil springs has a first elevation, a second set of coil springs has a second elevation different from the first elevation, and wherein one of the first and secon... | 11/22/2005 |
| 6931685 | One-sided mattress A one-sided mattress construction includes a spring assembly with asymmetric spring coils. Only the bottom portion of each spring coil is attached, either to adjacent spring coils or to a bottom surface of the mattress. The top portion of each spring may have a narr... | 08/23/2005 |
| 6540214 | Coil spring assembly A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top an... | 04/01/2003 |
| 6398199 | Coil spring assembly A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top an... | 06/04/2002 |
| 6375169 | Mattress spring cushion assembly with combination of right-hand and left-hand spring units A spring cushion assembly, particularly for mattresses, comprises a plurality of spring coils aligned with one another in parallel linear spring coil rows and parallel linear spring coil columns perpendicular to the spring coil rows, each spring coil bein... | 04/23/2002 |
| 6256820 | Multilayered pocketed bedding or seating product A bedding or seating product comprising a spring core made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. The pocket of fabric surrounding each... | 07/10/2001 |
| 6170807 | Inner springs for use in furniture and bedding and a producing method therefor An inner spring, for use in furniture and bedding, comprises coil springs which are encased in cylindrical casings having a predetermined number of spring casing portions, and which are continuously arranged in parallel. The axes of the coil springs are a... | 01/09/2001 |
| 5649332 | Posturized continuous mattress spring core A spring interior of a mattress comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together with helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single le... | 07/22/1997 |
| 5418989 | Mattress innerspring using formed wire elements Disclosed is an improved innerspring unit for a mattress using a plurality of formed wire elements for support. Enhanced lateral and longitudinal stability of the improved innerspring is provided by one or more stabilizing features including dual formed w... | 05/30/1995 |
| 4771495 | Bedding spring mattress A bedding mattress including a spring assembly, the length of which is divided into three zones, the center zone of which includes rows of springs, each row of which is formed from a single continuous length of wire and contains a plurality of coils inter... | 09/20/1988 |
| 4726572 | Spring coil and spring assembly A spring coil has an open-ended terminal convolution which is connected to the body of the coil through a gradient arm. The gradient arm can be readily varied in length in manufacture to alter the compression and thereby the firmness of the spring coil. O... | 02/23/1988 |
| 4488712 | Longitudinally laced continuous coil spring assembly A spring assembly for mattresses, innersprings, and the like. The assembly comprises longitudinal rows of coils, each row comprising a continuous length of wire formed into a plurality of coils interconnected by Z-shaped wire segments alternately disposed... | 12/18/1984 |
