Portable water filtration system

Claim 1

A portable water filtration system comprising a pump having a cylinder, a piston and an actuating handle, an inlet port communicating with said cylinder, a first check-valve means positioned between said inlet port and said cylinder and arranged to permit the unidirectional flow of water into said cylinder, removable filter means positioned adjacent to and laterally displaced from the longitudinal axis of said cylinder, an outlet duct communicating with said cylinder and said filter means, a second check-valve means positioned in said outlet duct and arranged to permit the unidirectional flow of water from said cylinder, a storage chamber having rigid walls and being positioned adjacent and rigidly secured to said cylinder with its longitudinal axis extending substantially parallel with the longitudinal axis of said cylinder, whereby the storage chamber mechanically reinforces said pump, and an integral unitary body having a first cavity joining said cylinder, a second cavity forming said storage chamber, and a third cavity adapted to removably retain said filter means, said filter means being positioned substantially along a common axis displaced laterally from the longitudinal axis of said cylinder.