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Accessory car seat cushionAccessory car seat cushion description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080315644, Accessory car seat cushion. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of provisional patent application Ser. No. 60/936,487, filed 2007 Jun. 21 by the present inventor. FEDERALLY SPONSORED RESEARCHNot Applicable SEQUENCE LISTING OR PROGRAMNot Applicable BACKGROUND OF THE INVENTION1. Field of Invention This invention relates to back support cushions, specifically to such cushions, which are used during sitting positions. 2. Prior Art Consumers purchase back support cushions to provide back structures with a surface contact. This area of contact disables specific back structures from further moving from a current location. Indeed, several designs of back support cushions were invented. However, these former designs only offer partial back support. U.S. Pat. No. 4,535,495 to Oldfield (1985) shows a partial back support, which lacks a firm contact surface to support the entire spinal column. Spinal bones usually are about two inches wide and most have spinous processes. This cushion shows a very slight elevation for cervical support and this definitely does not fill the gap of space between the neck and adjacent cushion. A proper neck cushion support is approximately 6 inches in width by 4 inches in length. Also, the thoracic support area of this cushion does not protrude outward enough to fill this space. Usually, the thoracic support cushion elevation should be approximately 3 inches wide by 3 inches in length. Moreover, this cushion makes no contact with lumbar vertebrae, due to its flat structure. Thus a later back support cushion has a slightly elevated spinal support cushion strand—in example U.S. Pat. No. 5,314,235 to Johnson (1994). This neck support region also lacks enough cushions to adequately provide the neck with a firm contact surface. The side view of the thoracic support region is obviously not contoured to the normal curvature of the spinal column. This concave shape for thoracic support is absurd and is designed to the shape of severe scoliosis spinal curvature. There is an inflatable bladder placed within the lumbar support region and this additional concave cushion expansion now creates an s-shaped design. The normal spinal curvature is not an s-shaped design and this cushion does not make contact with all back structures. Indeed, heretofore-back support cushions can cause a user a number of further complications. If one uses the back support cushions heretofore vertebrae will misalign, due to lack of spinal support. If one uses either cushion repeatedly, a user will develop an abnormal spinal curve. Excessive use of these cushions increase a user's chance of developing pinched nerves. A user's over-stretched intervertebral muscles tend to become the adapted new lengthy muscle band lengths. 3. Objects and Advantages Accordingly, besides the advanced structural aspects and optimum dorsal support of the back support cushion described in my above patent, several structural aspects and dorsal support of the present invention:
(a) to provide a back support cushion whose structure consist of a longitudinal elevated middle spinal support;
(b) to provide a back support cushion whose structural aspects are shaped to the normal curvature of the spinal column;
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