Valved squeeze bottle for viscous products
OwnerRobert H. Laauweinventor
Life of this patent
Estimating the term…
Abstract
A valved squeeze bottle for viscous products has a valve comprising two plastic parts cooperatively forming a chamber into which the viscous product can be squeezed by squeezing the squeeze bottle, to elastically separate the parts which together form a sleeve valve opened by the separation of the parts and which recloses when the bottle squeeze pressure is released so the parts return, one of the parts forming a check valve permitting entrance of air into the bottle. The squeeze bottle and the valve parts are made of elastically deformable plastic which after being deformed, springs back to its original shape.
Claims9
A squeeze bottle for containing and dispensing a viscous product and which is made of elastically deformable material so that after the bottle is squeezed and released from squeezing pressure, the bottle inherently springs back to its original unsqueezed shape, said bottle having a mouth provided with a dispensing valve comprising superimposed inner and outer parts normally closing said mouth, said inner part having at least one first product flow passage extending from its inside to its outside and a projection extending outwardly from its outside and the projection having a side in which at least one second product flow passage is formed, said second passage communicating with the outside of said valve and said outer part having a flexible diaphragm surrounding said projection and having a tubular neck slidably fitting the projection and normally covering and closing said second passage when the diaphragm is unflexed but uncovering and opening the second passage by sliding axially on the projection when the diaphragm is flexed outwardly, said parts forming a space between the outside of said inner part and the inside of said diaphragm into which when said bottle is squeezed a viscous product in the bottle can be squeezed via said first passage to apply pressure between the outside of the inner part and the inside of the diaphragm to cause the latter to flex outwardly and slide said tubular neck on said projection so as to uncover and open said second passage, said diaphragm being made of elastically deformable material and so that it inherently springs back to its original unflexed condition with said tubular neck covering and closing said second passage when the product in said space and bottle is released from squeeze pressure, one of said parts having an inwardly opening check valve for venting said bottle so that after release of squeeze pressure on the bottle air can replace product squeezed from the bottle and permit the latter to spring back to its unsqueezed shape and said diaphragm to spring back to its unflexed condition.
Dependencies are inferred from the claim text.