...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8176589 | Pocket spring mattress, a method and a device for the manufacturing thereof A spring mattress is disclosed including a plurality of strings interconnected side by side, each string including a plurality of continuous casings and each casing including a coil spring. Further, in at least one embodiment, at least one of the casings in at least... | 05/15/2012 |
| 8136187 | Slow acting pocketed spring core and method of manufacturing same Spring cushions (10) having slow-acting pocketed spring cores (12) characterized by the individual springs of the cores (12) being pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores (12). | 03/20/2012 |
| 8087114 | Thin pocket mattress, and method and device for its manufacturing A spring mattress includes a plurality of strings interconnected side by side, each string including a continuous casing material with a plurality of pockets, said pockets being defined by at least one longitudinal connecting line extending parallel to the longitudi... | 01/03/2012 |
| 8011046 | Pocket spring mattress A spring mattress for beds is disclosed. In at least one embodiment, the spring mattress includes a plurality of strings which are interconnected side by side and include a continuous casing material with a plurality of separate pockets with coil springs enclosed th... | 09/06/2011 |
| 7908693 | Coil-in coil springs and innersprings A mattress innerspring having coil-in-coil springs arranged in an array. Each coil-in-coil spring an outside helical coil and an inside helical coil, wherein the outside helical coil has a greater height and diameter than the inside helical coil, each coil having a ... | 03/22/2011 |
| 7748065 | End separated pocketed mattress as well as method and device for manufacturing the same A spring mattress is described, including a plurality of strings interconnected side by side. Each string includes a plurality of continuous casings and, enclosed therein, coil springs. Moreover, between at least some of the springs in at least one of the strings a ... | 07/06/2010 |
| 7661165 | Adjustable-springing mattress An adjustable spring mattress includes a plurality of parallelepipedal bodies made of a synthetic elastic material and being mutually coupled together. Each body houses an inner coil spring, and is separated from adjoining bodies through a throughgoing hole. The bod... | 02/16/2010 |
| 7644461 | Foam integrated innerspring mattress and method of manufacture This invention relates to a foam integrated innerspring mattress and method of manufacture wherein a flexible polyurethane foam is adhered onto the top and bottom of individually wrapped pocket innersprings, and additional polyurethane foam is molded onto the sides ... | 01/12/2010 |
| 7636972 | Slow acting pocketed spring core Spring cushions having slow-acting pocketed spring cores characterized by the individual springs of the cores being sealingly pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores. ... | 12/29/2009 |
| 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 |
| 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 |
| 7284494 | High comfort mattresses having fiberballs In one embodiment, a mattress is constructed of a core having a first side and a second side. A padding layer is positioned at the first side of the core and has a contoured surface and a planar surface. A layer of individual fiberballs is disposed on the planar sur... | 10/23/2007 |
| 7219381 | Perimeter stiffening system for a foam mattress A stiffening system for the perimeter edges of a foam core mattress comprising a coil spring (or other spring-based) structure disposed along one or more perimeter edges (e.g., one or both side edges, the foot, the head, or a combinations thereof including the foot ... | 05/22/2007 |
| 7211167 | Method and apparatus for manufacturing innerspring assemblies A method for the manufacture of an innerspring assembly, suitable for a mattress, cushion, or the like, is disclosed. In one aspect, the method involves the steps of: positioning a first string of pocketed coil springs in juxtaposition with a plurality of adhesive a... | 05/01/2007 |
| 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 |
| 7188379 | Combination air and spring mattress for a sofa sleeper This invention is directed to a mattress assembly for use in a sofa sleeper. The mattress assembly has an outer shell and an inner support received within the outer shell. The shell includes a lower panel, a sidewall, and a cover that fit together to form a cavity t... | 03/13/2007 |
| 7185379 | Foam encased innerspring with internal foam components (triple case) A molded foam-encased integrated flexible support device includes an innerspring positioned upon a three-dimensional thermoplastic foam deck as a flexible foundation, and a molded foam encasement which structurally integrates the foam deck with the innerspring by at... | 03/06/2007 |
| 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 |
| 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 |
| 7082635 | Unitized thermoplastic foam structures Three-dimensional unitized thermoplastic foam structures are made by thermoplastic welding of different foam components. The unitized foam structures may include a planar base to which other foam components are welded to project from the base and provide a flexible ... | 08/01/2006 |
| 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 |
| 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 |
| 7043780 | Supporting foot of a baby mesh bed A baby mesh bed includes a supporting foot, which is connected to the frame, and which includes a main body, and an ornamental cover; an upright rod part of the frame is inserted in the main body, and a connecting element is passed through the upright rod part and t... | 05/16/2006 |
| 6986182 | Pocketed bedding or seating product having inflatable members 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 one spring en... | 01/17/2006 |
| 6971133 | Air mattress apparatus An air mattress apparatus includes a first mattress section which contains a number of first flotation-bottle-reception chambers which are separated from each other by first stitches. First mattress section closure means enable access to inside the first flotation-b... | 12/06/2005 |
| 6971130 | Mattress cover with expandable sidewalls A generally impermeable mattress cover having expandable sidewalls is provided to enclose a mattress to provide protection against allergens, dust mites, fluids, and other spills and spoils. The cover comprises generally impermeable top and bottom walls, and sidewal... | 12/06/2005 |
| 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 |
| 6952852 | Mattress structure A mattress (900) provides a user with three-dimensional firmness zoning, the mattress (900) cooperating with a mattress shell (720). The mattress (900) includes a plurality of longitudinally spaced, transversely extending resilient blocks... | 10/11/2005 |
| 6952850 | No-flip mattress systems and methods A no-fip mattress is constructed of a mattress core, a first padding layer positioned on top of the core, wherein the first padding layer has a density in the range from about 0.5 pounds per cubic foot to about 3 pounds per cubic foot and a firmness in the range fro... | 10/11/2005 |
| 6948205 | Mattress, provided with spring elements, such as coil springs The present invention relates to a mattress (10), for use as a bed, which mattress comprises substantially resilient material such as a foam rubber, spring devices (4) such as coil springs being provided in the mattress, in order to distribute the pres... | 09/27/2005 |
| 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 |
| 6901618 | Low profile mattress A low-profile mattress comprises an inner spring core having a plurality of spring coils and having an upper and lower surface. The mattress further includes a padding layer disposed on the upper surface and a quilting layer disposed over the padding layer and havin... | 06/07/2005 |
| 6898813 | Innerspring assembly An innerspring assembly includes a first plurality of interconnected strings of pocketed first springs. A second plurality of strings of springs is provided and so incorporated in the innerspring assembly that at least one string of springs of the second plurality i... | 05/31/2005 |
| 6883196 | Encased coil innerspring assembly An innerspring assembly comprising a plurality of strips of pocketed coil springs, each including axially interconnected spring pockets having a pocket height. The strips of pocketed coil springs are comprised of overlapping plies of material adjoined together by ax... | 04/26/2005 |
| 6862763 | Pocketed bedding or seating product having pockets of differing heights A bedding or seating product comprising a spring assembly 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. Selected pockets of fabric are shorter than ... | 03/08/2005 |
| 6829798 | Low density pocketed spring assembly and method of manufacture 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 one spring en... | 12/14/2004 |
| 6826796 | Pocketed bedding or seating product having strings of springs with vertically offset pockets A bedding or seating product is provided comprising a pocketed spring assembly made up of a plurality of parallel strings of springs joined to each other. Each string of springs comprises a row of interconnected pocketed springs. The pockets of fabric are vertically... | 12/07/2004 |