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| Number | Title | Issue Date |
| 7404223 | Innerspring coils and innersprings with non-helical segments Innerspring coils for innersprings for mattresses and other reflexive support structures, have generally helical coil bodies and at least one non-helical segment or step which extends between one or both axial ends of the coil body and one or both of the coil ends. ... | 07/29/2008 |
| 7386897 | Bedding or seating product made with coil springs having unknotted end turns Disclosed herein is a bedding or seating product having a spring core comprising coil springs having unknotted end turns made from high tensile strength wire. In each embodiment, the end turns of the coil springs are generally U-shaped having one leg longer than the... | 06/17/2008 |
| 7325267 | Frame mattress The present invention concerns a frame mattress comprising a frame (1) with a spring inlay (3) surrounded by the frame, and a material (2) over the spring inlay, together with a reversible mattress (5), arranged for abutting the material ... | 02/05/2008 |
| 7251847 | Continuous wire spring mattress or seating product and method of manufacture 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 surrounde... | 08/07/2007 |
| 7210181 | Spring construction An improved spring construction for mattresses, box springs, furniture and other applications is provided. The application of such springs in mattresses, box springs, furniture and other applications is also provided. In one aspect of the invention, the spring const... | 05/01/2007 |
| 7181796 | Mattress structure with an improved lumbar zone A mattress spring structure (10) is provided with a strengthened central area (C) thereon to provide greater support for a user's body lumbar region when received thereon. The support is provided with a strengthening structure (30) having a continuous ... | 02/27/2007 |
| 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 |
| 7044454 | Mattress inner spring assembly The invention concerns inner spring assemblies for mattresses, typically bed mattresses. The invention proposes an inner spring assembly having open-ended coil springs arranged in first rows and second rows transverse to the first rows and a connecting arrangement w... | 05/16/2006 |
| 6996866 | Mattress structure with an improved lumbar zone A mattress spring structure (10) is provided with a strengthened central area (C) thereon to provide greater support for a user's body lumbar region when received thereon. The support is provided with a strengthening structure (30) having a continuous ... | 02/14/2006 |
| 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 |
| 6966085 | Sleep system A sleep system, for providing a bed, includes a frame with cross support members coupled with a first and second panel assembly. A sleep support mechanism operationally engages the first and second panel assemblies with one another and further engages a pad to provi... | 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 |
| 6684435 | Method of manufacturing bedding or seating product having coaxial coil springs A bedding or seating product comprises a pocketed spring assembly having a plurality of parallel strings of springs joined to each other. Each of said strings of springs comprises a row of interconnected pockets, each of the pockets containing at least on... | 02/03/2004 |
| 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 |
| 6324711 | Low density spring assembly and method of making low density spring assemblies A method of making low density spring interior assemblies having rectangular arrays of spring positions, some of which are occupied by individual coil springs and some of which are empty, is provided. Preferably, the array is formed of rows of alternating... | 12/04/2001 |
| 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 |
| 6233760 | Box spring with padded cover A box spring or other cushioning member for laying a mattress thereon which has a padded fabric cover over the upper wall and peripheral side walls to present a finished appearance and to provide protective padded surfaces for those handling such box spri... | 05/22/2001 |
| 5927695 | Bed coil spring unit and method of making same A bed coil spring unit comprises a plurality of joined and interconnected spring cell units and a method of manufacturing the same. Each spring cell unit comprises a plurality of coil springs within long legs which long legs are used to form the coil spri... | 07/27/1999 |
| 5575460 | Spring core for a mattress Described is a spring core for a mattress, consisting of a multiplicity of identically shaped spiral springs with in each case two end rings lying diametrically opposite each other, which change to a spring coil part arranged centered between them, whereb... | 11/19/1996 |
| 5509642 | Mattress innerspring structure having coaxial coil units An innerspring structure for a mattress comprises a plurality of outer coils extending generally parallel with each other to collectively form top and bottom face surfaces of the innerspring structure. One or more of the outer coils has an inner coil of p... | 04/23/1996 |
| 4960267 | Edge-reinforced spring bedding product A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire for... | 10/02/1990 |
| 4905333 | Spring bedding product A spring interior comprising a plurality of longitudinally extending bands of springs disposed side by side and connected together by helical lacing wires in the top and bottom faces of the bands. Each band of springs comprises a single length of wire for... | 03/06/1990 |
| 4886250 | Spring structure for cushion seating An adjustable coil seat is provided which utilizes the combination of a plurality of parallel rows of sinuous springs which are connected at opposite ends of the frame, at least one row of tapered conical coil springs in transverse relation to the sinuous... | 12/12/1989 |
| 4828233 | Bent wire spring module with lock A bent wire spring module embodying a clamp element at the upper end interengageable with the cross wire of a grid frame without requiring the formation of deviations in the cross wire to which it is attached.... | 05/09/1989 |
| 4781360 | Spring assembly with helical coils of spring wire with unknotted ends A spring assembly wherein there is a rectangular border wire and there are coils disposed in spaced, parallel rows within the border wire. The coils in the rows of coils lap and are connected by helices of wire. The helices of wire connect the adjacent ro... | 11/01/1988 |
| 4771494 | Offset continuous row coil spring assembly A spring assembly for mattresses, innersprings, and the like. The assembly comprises 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 at the top a... | 09/20/1988 |
| 4766624 | Mattress assembly having rows of coil springs formed from a single continuous length of wire A bedding mattress, including a spring assembly having top and bottom parallel surfaces, padding over the top and bottom surfaces, and an upholstered covering completely encasing said spring assembly and padding. The spring assembly comprises multiple par... | 08/30/1988 |
| 4766625 | Box spring having rows of coil springs formed from a single length of wire A box spring comprises a rectangular base frame, a wire grid, and a plurality of parallel rows of coil springs supporting the grid atop the base frame. Each row of coil springs is made from a single continuous length of wire in which adjacent coils are in... | 08/30/1988 |
| 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 |
| 4724557 | Bedding box spring assembly A bedding foundation comprising a lower base frame, an upper wire grid and a plurality of novel spring elements interposed between the base frame and the wire grid. Each of the spring elements comprises two discrete lengths of spring wire, each of which h... | 02/16/1988 |
| 4699362 | Spring element A spring element for bedding and furniture which can be constructed in a simple manner but will not tend to come apart in ordinary use. The spring element includes a laterally extending pair of parallel wires and a longitudinally extending pair of paralle... | 10/13/1987 |
| 4639957 | Bedding and seating product having double twist coil spring and method and apparatus for manufacturing the same A bedding foundation box spring having novel double twist coil springs interconnecting a wooden base frame and a top wire grid. The coil springs each comprise a single length of wire having a middle section located in a diametral plane of one end convolut... | 02/03/1987 |
| 4625349 | Bedding coil spring unit and assembly method A coil spring unit having a series of coil springs connected together in column and row matrix configuration, the end loops of the coil springs being open loops that terminate in free ends, i.e., the end loops of the coil springs not being closed and knot... | 12/02/1986 |
| 4609186 | Mattress spring core with open ended coils A spring core comprises a plurality of coil springs 10 each made of a single, continuous piece of wire having two open ended final windings 11 which are approximately U-shaped. The coil springs are held together by spiral shaped connecting elements 30 enc... | 09/02/1986 |
| 4597118 | Combined bed frame and box spring assembly A bed spring assembly and a supporting rectangular steel frame structure incorporating leg supports, the frame structure including cross beams which in certain embodiments are prestressed in tension or compression to obtain maximum load support without sa... | 07/01/1986 |
| 4555097 | Combination round coil spring and rectangular torsion coil spring assembly A core spring assembly combines the use of rows and/or columns of round coil springs with rows and/or columns of rectangular torsion bar coil springs, all interconnected in a top plane by a welded wire grid so as to create a spring core assembly for a bed... | 11/26/1985 |
| 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 |
| 4437702 | Adjustable patient corrective support apparatus A chair or similar article of furniture is disclosed in which a plurality of individually adjustable spring members are incorporated into the chair structure so that specific areas of the chair may be adjusted to conform to or correctively support portion... | 03/20/1984 |
| 4324011 | Furniture spring assembly A mattress box spring and method of assembly comprising a plurality of substantially conical coil springs rigidly fastened at the spring ends of lesser diameter to a support frame such that the spring end coils of greater diameter lie in a substantially c... | 04/13/1982 |
| 4161046 | Coil spring assembly A coil spring assembly for mattresses and box springs in which the coil springs are arranged in lengthwise and crosswise rows in the assembly with the outermost coil springs in each of the rows and in the middle rows extending lengthwise and crosswise of ... | 07/17/1979 |
