Preloaded fluid bladder with integral pump

摘要: A thermoplastic bladder and pump combination comprises three coextensive superposed layers of material peripherally sealed to one another thereby form a having upper lower co-extensive air chambers. The chamber is defined by the intermediate layers. permanently inflated at time manufacture or assembly into final product fluid pressure in can be modulated user who may alternately inflate deflate using an integral release valve which are each disposed on layer. filled intake check between defining that fused together, as heat sealing like.