Controlled Collapse Bottle

Abstract

This invention is a squeeze bottle that forces all of the liquid toward the nozzle and then collapses in a controlled way to hold the liquid compressed toward the nozzle. Air is not allowed to enter the bottle to contact the liquid at all. The invention is comprised of a cap and a bottle. The cap has a nozzle with a one-way valve that lets the liquid out but no air in. The bottle is molded with variations in the thickness of the walls of the bottle. These variations cause the bottle to collapse in a controlled way so that the liquid is held against the cap at all times.

1 . A squeezable container for dispensing liquids that automatically takes on a controlled shape after dispensing, the container comprising: An outlet nozzle with a one-way valve that allows the liquid to escape while forbidding the entry of air, and a bottle whose walls are designed with a pattern of varying thicknesses so that ambient air pressure will collapse the bottle in a controlled and designed way. 
   
   
       2 . A container according to claim one wherein the thickness of the bottle walls are thinner further away from the nozzle and thicker nearer the nozzle so that the bottle collapses in a controlled way starting from the remote region and working its way toward the nozzle, thus keeping the liquid pressed against the nozzle. 
   
   
       3 . A container according to claim one wherein the liquid is forced toward the nozzle as the bottle collapses in a controlled way while simultaneously taking on a shape capable of standing in an upright position on its base.