Active Seating Cushion

Abstract

Embodiments described herein provide a cushion with active seating capacity, the cushion having a sitting portion and a rigid material to maintain the sitting portion.

1 - 20 . (canceled) 
     
     
         21 . A cushion comprising a base, a primary surface, and an adapting region;
 where the base is made of hard plastic and comprises a periphery and a center, where the periphery surrounds the center by three hundred and sixty degrees;   where the primary surface is made of elastic material, comprises a center, a convex end portion, and a periphery, where the convex end portion surrounds the center by three hundred and sixty degrees, and the periphery surrounds the convex end portion by three hundred and sixty degrees;   where the adapting region is less elastic than the primary surface, is in substantially flush contact with the base, and substantially conforms and is in substantially flush contact with a seating surface of a chair;   where the primary surface further comprises a lip and the lip conceals the base when the cushion is placed on the seating surface of the chair;   and where the center of the primary surface is attached to the center of the base and the periphery of the primary surface is attached to the periphery of the base.   
     
     
         22 . (canceled) 
     
     
         23 . (canceled) 
     
     
         24 . The cushion in  claim 21 , wherein the cushion is filled with a gas. 
     
     
         25 . The cushion in  claim 21 , wherein the cushion is filled with a liquid. 
     
     
         26 . The cushion in  claim 21 , further comprising an inlet. 
     
     
         27 . The cushion in  claim 21 , wherein the base comprises a top face and the primary surface comprises a flush region, where the flush region is attached to the periphery of the primary surface and also attached to the center of the primary surface and the flush region is substantially flush against the top face of the base. 
     
     
         28 . The cushion in  claim 27 , wherein the cushion further comprises an inlet, and the inlet extends through the flush region and the base. 
     
     
         29 . (canceled) 
     
     
         30 . The cushion in  claim 21 , wherein the adapting region has a high friction texture sufficient to substantially prevent slipping between the adapting region and the seating surface of the chair. 
     
     
         31 . A cushion comprising a base, a primary surface, and an adapting region;
 where the base is made of hard plastic and comprises a periphery, a center, and a top face;   where the primary surface is made of elastic material, and comprises a center, a convex end portion, a periphery, a lip, and a flush region, where the convex end portion surrounds the center by three hundred and sixty degrees, and the periphery surrounds the convex end portion by three hundred and sixty degrees;   where the flush region is attached to the periphery of the primary surface and the center of the primary surface;   where the adapting region is less elastic than the primary surface, in substantially flush contact with the base, and substantially conforms and is in substantially flush contact with a seating surface of a chair;   where the center of the primary surface is attached to the center of the base and the periphery of the primary surface is attached to the periphery of the base.   where the lip of the primary surface conceals the base when the cushion is placed on the seating surface of a chair:   and where the flush region is substantially flush against the top face of the base.   
     
     
         32 . (canceled) 
     
     
         33 . The cushion in  claim 31 , wherein the cushion further comprises an inlet, and the inlet extends through the flush region and the base. 
     
     
         34 . (canceled) 
     
     
         35 . The cushion in  claim 31 , wherein the adapting region has a high friction texture sufficient to substantially prevent slipping between the adapting region and the seating surface of a chair. 
     
     
         36 . A cushion comprising a base, a primary surface, and a leg structure;
 where the base is made of material that substantially resists deformation, and comprises a periphery, a top face, and a flat center, where the periphery surrounds the flat center by three hundred and sixty degrees;   where the primary surface is made of elastic material, comprises a concave center, a convex end portion, a periphery, and an area between the concave center and the periphery, and a flush region, where the convex end portion surrounds the concave center by three hundred and sixty degrees, the periphery surrounds the convex end portion by three hundred and sixty degrees, and the area between the concave center and the periphery surrounds the concave center by three hundred and sixty degrees;   where the concave center of the primary surface is attached to the flat center of the base and the periphery of the primary surface is attached to the periphery of the base, but the area of the primary surface between the concave center and the periphery of the primary surface is not in immediate contact with the base;   where the flush region is substantially flush against the top face of the base;   where the flush region is attached to the periphery of the primary surface and the concave center of the primary surface but is not in immediate contact with the area of the primary surface between the concave center and the periphery of the primary surface;   and where the base is attached to the leg structure, and the leg structure comprises one or more legs for supporting the weight of the cushion.   
     
     
         37 . (canceled) 
     
     
         38 . The cushion in  claim 36 , wherein the cushion further comprises an inlet, and the inlet extends through the flush region and the base. 
     
     
         39 . The cushion in  claim 36 , wherein the cushion is filled with a gas. 
     
     
         40 . The cushion in  claim 36 , wherein the cushion is filled with a liquid.