Dispensing assembly due to control air uptake in contact with fluid product
AssigneeL'oreal
InventorJean-Louis H. Gueret
Life of this patent
Estimating the term…
Abstract
Assembly for dispensing a liquid to pasty product, includes a container holding the product, and a dispensing head having a dispensing channel. The material of the container has a rigidity such that the dispensing of the product requires air-uptake by the container. A pumping member having an inlet valve and a dispensing valve is provided for dispensing the product. The pumping member is of the type having no air-uptake. The assembly includes elements for selectively establishing or preventing air-uptake by the container. The dispensing head possesses a bearing surface having a flexible diaphragm defining a springy leaf applied against the end of the bearing surface into which the dispensing channel emerges.
Claims15
Assembly for dispensing a liquid to pasty product, comprising:
- a container holding the product and having a rigidity such that the dispensing of the product requires air-uptake by the container;
- a dispensing head having an upper portion and a dispensing channel comprising a first terminal part and a second terminal part;
- a two-valve pumping member, having an inlet valve and a dispensing valve, for dispensing the product, said two-valve pumping member lacking an air-uptake;
- means for establishing or preventing air-uptake by the container;
- said dispensing head comprising a bearing surface having an end through which the first terminal part of the dispensing channel passes and opens to an outside of the container, and said dispensing head further comprising, in its upper portion, a flexible diaphragm having a bevelled profile defining a springy leaf applied against the end of the bearing surface.
Dependencies are inferred from the claim text.