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Foam core pillow or mattress allowing adjustment for rebound speedRelated Patent Categories: Beds, Mattress (for Whole Body), Ventilated Or Permitting Substantial Air PassageFoam core pillow or mattress allowing adjustment for rebound speed description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060031996, Foam core pillow or mattress allowing adjustment for rebound speed. Brief Patent Description - Full Patent Description - Patent Application Claims
RELATED APPLICATIONS [0001] The present application claims the benefit of U.S. Provisional Application No. 60/580,398, filed Jun. 18, 2004, which is incorporated by reference herein in its entirety. FIELD [0002] The present invention relates to a pillow or mattress that includes a foam core, which has the ability to rebound to its expanded shape quickly after pressure is released. BACKGROUND [0003] Memory foam pillows and mattresses are known. Called by the general names of visco-elastic foam or memory foam, this type of foam, originally developed for NASA, has been used with great effectiveness for over 20 years in the medical industry--mainly in the treatment of bed sores. [0004] However, "memory foam" did not make its way into the consumer market until the manufacturers of Temperpedic began marketing the foam to the public around 15 years ago. However, over the last few years memory foam has become extremely popular, and many brands have followed Temperpedic's lead by adding memory foam pillows and mattresses to their product lines. [0005] Most memory foams are temperature sensitive, and their behavior, or rebound speed, can be influenced by the temperature of the environment around the foam. The rebound speed of memory foam is determined by the density of the foam itself. [0006] Latex foam pillows are known. They are typically covered in with a cotton fabric and sold on the merits of their elasticity and resiliency. Latex foam is not temperature sensitive, but it rebounds faster than memory foam and changes in the density of the foam does not make much difference in terms of rebound speed. [0007] These prior pillows and mattresses have rebound speeds that are fixed by the nature of the foam cores, thus the rebound speed cannot be adjusted by the user. Further, the visco-elastic foam cores have different behaviors in different temperatures. In particular, because the visco-elastic foam is temperature sensitive, it turns to a soft, putty-like material in really hot climates and it gets rock hard in cold climates. This can cause problems for the user. [0008] U.S. Published Application No. U.S. 2004/0019972 to Schecter et al discloses a pillow or other cushioning device comprised in part of an upper pocket with a reception cavity for housing a loose or grouped non-integral filler such as down, fiberfill, or the like; an additional lower pocket for receiving an additional filler material; and a flexible core positioned therebetween. Both the first and second pockets may contain a filler material such as down, and the intermediate pocket may contain a core filler such as a visco-elastic foam core (see, for example, claims 40-42). The pillow cover may comprise any suitable material, such as polyester, and woven and unwoven materials. Further, a zipper on one longitudinal end provides the consumer with easy access to the pillow interior. Additionally, different grade fabrics or different type material may be used, such as netting and cloth combination, for the outer cover layer and the upper bottom layer of the pillow. [0009] Sharples, in U.S. Published Application No. U.S. 2003/0000020, discloses a permeable mattress pad or pillow comprised of a substantially rigid base of cross members, with holes between cross members so as to permit airflow through the mattress base. Cushioning supports attach to various cross members of the base, and a mesh overlays the cushioning members. A cover may also be provided atop the mesh, wherein the cover comprises at least one layer of permeable fabric, permeable foam, permeable fibers, or perforated rubber. [0010] U.S. Pat. No. 6,230,347 to Alexander provides for an orthopedic comfort pillow comprised of a compliant overlay defining an exterior surface, wherein the overlay is formed of a plurality of partitioned chambers extending parallel to the front and rear edges; and a firmer, supporting core layer disposed beneath the compliant overlay, wherein the supporting core possesses a bulbous front section, a waisted midsection, and a back bolster. Additionally, the chambers of the compliant overlay are filled with compliant particulate material of differing densities, increasing in firmness and support from the front to rear. The firmer, supporting core layer may comprise either an inflatable material or a foam. [0011] U.S. Published Application No. 2001/0018777 to Walpin and U.S. Pat. No. 6,182,312 discloses an orthopedic pillow comprised of components of varying densities. More specifically, the pillow includes a compressible, resilient core body (e.g. foam) with top and bottom portions, and first and second rounded portions. The core includes at least one opening that extends across its length, with a resilient insert snugly fitting into the opening. A cover of softer foam surrounds the core, and a second opening formed in the cover is designed to receive a second resilient insert. This second insert may be of the same or different compressibility as the first insert, and may comprise down or fibrous material. See also Walpin U.S. Pat. No. 6,408,467. [0012] Walpin U.S. Pat. No. 6,317,908 discloses an orthopedic support device comprised of a firm core with recesses at the top of the core to receive a memory foam layer. Atop the memory foam layer rests a cushioning layer. Additionally, a C-shaped boundary layer wraps around a first lengthwise edge of the core, a second surface of the core, and a second edge of the firm core. Finally, disposed within the firm core are one or more inflatable bladders. The firm core may comprise high density polyurethane foam, and the foam layer and C-shaped boundary layer both may be constructed of visco-elastic memory foam. The bladders may be inflated with either air or water. SUMMARY [0013] An object of the present invention is to provide a foam core pillow or mattress that has both a fast and a slow rebound speed. [0014] It is a further object of the present invention to provide a foam core pillow or mattress that is comfortable. [0015] It is a further object of the present invention to provide a pillow or mattress having a foam core that has a rebound speed that can be adjusted by the user to his or her liking. [0016] It is a further object of the present invention to provide a pillow or mattress having a foam core that does not change behavior in different temperatures. [0017] The scope and content of the present invention is not intended to be limited by or to the above mentioned objects. BRIEF DESCRIPTION OF THE DRAWINGS [0018] For better understanding of the invention and additional objects and advantages thereof, reference is made to the following detailed description and accompanying drawing of a preferred embodiment, wherein [0019] FIG. 1 illustrates a pillow in accordance with one embodiment of the present invention; Continue reading about Foam core pillow or mattress allowing adjustment for rebound speed... Full patent description for Foam core pillow or mattress allowing adjustment for rebound speed Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Foam core pillow or mattress allowing adjustment for rebound speed patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. 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