Quotables
"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7418753 | 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... | 09/02/2008 |
| 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 |
| 7309357 | Prosthetic spinal discs A prosthetic spinal disc uses a stiff spring or springs for resiliency between two plates that attach to adjacent vertebrae. When the disc has multiple springs, they may be adjacent, concentric or nested. Multiple springs may be spaced around the periphery of the pl... | 12/18/2007 |
| 7287291 | Mattress with improved edge support A mattress is provided comprising a plurality of inner coil springs and an edge support. The edge support comprises a foam border extending along the outer perimeter of the mattress and around the inner coil springs, a plurality of spaced slits inserted into the foa... | 10/30/2007 |
| 7178187 | Asymmetric spring components and innersprings for one-sided mattresses Asymmetric spring components for mattress and other flexible support structures, in the form of helical coil springs with turns in the coil body having varying pitch angles and radii, and a single support end for use in a one sided innersprings in one-sided mattress... | 02/20/2007 |
| 7168117 | Multi-stranded coil spring A spring assembly including a helical coil formed from a multi-strand cord. ... | 01/30/2007 |
| 7047581 | Stranded mattress spring A mattress construction with a stranded wire spring is disclosed. The stranded wire spring can be designed with the same performance characteristic as a conventional single strand coil spring, but at a lower manufacturing and material cost. ... | 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 |
| 6944899 | Stranded mattress spring A mattress construction with a multi-strand coil spring is disclosed. The multi-strand coil spring can be designed with the same performance characteristic as a conventional solid wire coil spring, but at a lower manufacturing and material cost. ... | 09/20/2005 |
| 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 |
| 6668406 | Spring units A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring m... | 12/30/2003 |
| 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 |
| 5713088 | Innerspring construction with springs having free terminal convolutions An innerspring assembly, such as for use in a mattress, comprises a plurality of coil springs defining upper and lower terminal convolutions and body portions therebetween. Adjacent coil springs are attached together at the body portions thereof with the ... | 02/03/1998 |
| 5699999 | Aligned mattress spring core A mattress inner spring core comprising a plurality of coil springs arranged in longitudinally extending columns and transversely extending rows. Each coil spring has an identically configured upper and lower end turn between which are a plurality of cent... | 12/23/1997 |
| 5596777 | Mattress with bent rattan springs A spring mattress including a plurality of helical springs formed of rattan tubes and extending between the top and the bottom of the mattress sheath, with the helical springs forming a plurality of parallel, spaced from each other rows of helical springs... | 01/28/1997 |
| 5584083 | Mattress spring core A spring core for a mattress consisting of a plurality of side-by-side rows of identically configured helical coil springs each made of a single piece of wire having a central portion of a first radius defining a central spring axis and terminating at opp... | 12/17/1996 |
| 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 |
| 5332202 | Pneumatic member and related attachment elements for cushions, seats, foundations and the like A pneumatic and load-supporting spring device for use in bedding, cushions and the like. The disclosed embodiments have tubular telescoping members that are biased apart by either an elastomer located in the overlapping region, or a helical spring located... | 07/26/1994 |
| 5104099 | 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... | 04/14/1992 |
| 4817924 | Spring core for a mattress The spring core for a mattress consists of several, identically formed spring coils arranged in side by side rows with each row forming a wire piece having an upper and a lower mutually aligned end spiral in a U-shape, and having opposite legs joined toge... | 04/04/1989 |
| 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 |
| 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 |
| 4664361 | Spring unit A plurality of main springs and a plurality of intermediate support springs are arranged on a rectangular base plate. Each main spring is made of a single steel wire and consists of two coil portions and a straight rod portion connecting these two coil po... | 05/12/1987 |
| 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 |
| 4619445 | Spring unit A plurality of main springs and a plurality of intermediate support springs are disposed and fixed on a rectangular base plate. Each main spring has a linear connecting rod portion and two coil spring portions such that one end of each of the two coil spr... | 10/28/1986 |
| 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 |
| 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 |
| 4548390 | Spring unit A spring unit comprises a rectangular base plate, a rectangular frame, first main springs, second main springs, third main springs and fourth main springs arranged on the base plate, and intermediate support springs also placed on the base plate. Each of ... | 10/22/1985 |
| 4535978 | Coil spring and spring assembly A spring assembly for an innerspring unit, particularly an innerspring mattress, is provided wherein at least a pair of springs are restricted about their adjacent offset portions of adjacent terminal convolutions in one surface of the assembly so that hi... | 08/20/1985 |
| 4480823 | Innerspring assembly for furniture seats and backs An innerspring assembly for furniture seats and backs comprising spaced, parallel, substantially rectangular top and bottom grids and tapered helical coils interposed between the grids and secured thereto, the top grid comprising pairs of spaced, parallel... | 11/06/1984 |
| 4244089 | Method of constructing box springs or the like 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... | 01/13/1981 |
| 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 |
| 4160544 | Small diameter, single cone coil spring for use in a box spring assembly An improved single cone coil spring and an improved box spring assembly made from the improved single cone coil springs. The box spring assembly comprises a base frame, a series of the improved small diameter single cone coil springs and a welded wire gri... | 07/10/1979 |
| 4120059 | Furniture spring assembly and method for manufacture thereof A mattress box spring 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 common plane, a wire mes... | 10/17/1978 |
| 4112528 | Box spring assembly and small diameter single cone coil spring for use in that assembly An improved single cone coil spring and an improved box spring assembly made from the improved single cone coil springs. The box spring assembly comprises a base frame, a series of the improved small diameter single cone coil springs and a welded wire gri... | 09/12/1978 |
