Patent ID: 6638038
Filing Date: 2003-10-28
Classification: A43B,F16K,Y10S

Abstract:
A pump and deflation valve assembly for use with a fluid bladder, said assembly comprising:a pump having an inlet port and an outlet port, said outlet port aligned to discharge fluid into the bladder; a deflation valve having an input port in fluid communication with the bladder and an output port; said deflation valve comprising: a valve body comprised of a non-conformable material, said valve body having a bore extending therethrough, from the inlet port to the outlet port; an upper inwardly extending flange, said flange characterized by a bottom surface, a top surface, and a bore extending from the bottom surface to the top surface, said bottom surface serving as a valve seat; a plunger extending through the bore, said plunger having a upper segment of small diameter making it capable of moving through the bore of the upper inwardly extending flange, said plunger having a lower segment of larger diameter such that said lower segment cannot pass through the bore of the upper inwardly extending flange, said lower segment of the plunger having a upper surface positioned in apposition to the bottom surface of the upper inwardly extending flange and a lower surface.