Patent ID: 7896202
Filing Date: 2011-03-01
Classification: A47K,B67D,F16K

Abstract:
1. A disposable pump for integration with a collapsible reservoir, comprising: a) a hollow pump body comprising: b) a nozzle at the second end of the pump body; c) a top-cap at the first end of the pump body; d) a rigid seal-rod extending axially along the pump body from the top cap to the nozzle through the opening in the seal-base, having a seal-head sealing the opening in the seal-base by sealing against a side of the seal-base when the seal-base is in one of the first position or the second position, blocking flow of liquid through the opening in the seal-base; e) a compression spring, biasing the seal-base into one of the first position or the second position in which the seal-head seals the opening in the seal-base; such that when the seal-base is reciprocally moved parallel to an axis of the pump body, the seal-base is moved between the first position and the second position.