Patent ID: 7942722
Filing Date: 2011-05-17
Classification: A41C,B32B,Y10S,Y10T

Abstract:
1. A pressable air cushion capable of being inflated and bled, comprising a first plastic sheet; the first plastic sheet having an air inlet hole; a second plastic sheet; the first and the second plastic sheets being joined together at peripheries thereof to form an air receiving space therebetween; an elastic plate interposed between the first and the second plastic sheets; the elastic plate having a displaceable portion capable of changing shape between concave and convex contours; the elastic plate being joined at a first end thereof to the first plastic sheet by heat-sealing so that an air passage is formed between the elastic plate and the first plastic sheet to allow air to flow into the air receiving space therethrough; a compressible component interposed between the air inlet hole of the first plastic sheet and the displaceable portion of the elastic plate; and a third plastic sheet; the third plastic sheet and the elastic plate being joined together at peripheries thereof with an air outlet hole being formed therebetween; the third plastic sheet being larger than the elastic plate; the third plastic sheet having a through hole disposed in correspondence with the displaceable portion of the elastic plate.