Patent ID: 6907633
Filing Date: 2005-06-21
Classification: A47C,A61G,Y10S

Abstract:
1. An inflatable bladder (a) made of a film material, (b) capable of receiving a first fluid through a first exterior inlet, (c) capable of being used in a mattress system, and (d) having a top surface which is designed to receive an object, a bottom surface that is opposite the top surface and at least one side positioned between the top and the bottom surfaces, comprising: at least one anti-creep zone defined by an upper surface, a lower surface, and at least one in-between surface positioned between the upper and lower surfaces, having (1) at least a predetermined portion of the at least one in-between surface and (2) the upper surface or the lower surface being fluid barriers that separates the anti-creep zone from the remaining portion of the bladder, capable of containing a second fluid, at least one surface of the anti-creep zone has a valve inlet that allows the second fluid to enter the anti-creep zone when the second fluid exceeds a predetermined pressure, the anti-creep zone is designed not to collapse when a user applies pressure to the bladder and the anti-creep zone to avoid creeping and bottoming out of the bladder, and at least one in-between surface is attached to the bladder surface; and the inflatable bladder has at least one of the following characteristics selected from the group consisting of: A. the anti-creep zone has a valve outlet for the second fluid that allows the second fluid to exit the anti-creep zone when the fluid exceeds a predetermined pressure; B. the first and second fluids are two different fluids; C. the first and second fluid are the same and the valve inlet allows the fluid to enter into the anti-creep zone from the remainder of the bladder; D. the valve inlet allows the second fluid to enter into the anti-creep zone from a second anti-creep zone; and E. the anti-creep zone has a second exterior inlet.