Pump for dispensing a product
AssigneeL'oreal
InventorPhilippe Bonningue
Life of this patent
Estimating the term…
Abstract
A pump for use with a device for containing and dispensing a product may include a single-piece vessel of unitary construction defining a variable-volume chamber. The vessel may include a first wall and a second wall. The pump may include an inlet slit on the first wall, the inlet slit being configured to open one way in response to a decreased pressure in the chamber. The pump may also include an outlet slit on the second wall, the outlet slit being configured to open one way in response to an increased pressure in the chamber. The vessel may be configured to deform from a first position occupying a first volume to a second position occupying a second volume in response to a pressure applied to the vessel. The pump may be used in combination with a container to form a device for containing and dispensing a product.
Claims61
A pump for use with a device for containing and dispensing a product, comprising:
- a single-piece vessel of unitary construction defining a variable-volume chamber, the vessel including a first wall and a second wall;
- an inlet slit formed in the first wall, the inlet slit being configured to open one way in response to a decreased pressure in the chamber;
- and
- an outlet slit formed in the second wall, the outlet slit being configured to open one way in response to an increased pressure in the chamber.
A pump for use with a device for containing and dispensing a product, comprising:
- a body member;
- a vessel defining a variable-volume chamber, the vessel including a first wall and a second wall, the vessel being on the body member in a partially-deformed, first position occupying a first volume, the first volume being a maximum volume;
- an inlet slit on the first wall, the inlet slit being configured to open one way in response to a decreased pressure in the chamber;
- and
- an outlet slit on the second wall, the outlet slit being configured to open one way in response to an increased pressure in the chamber.
A device for containing and dispensing a product, comprising:
- a container configured to contain a product;
- a body member on the container;
- a vessel defining a variable-volume chamber, the vessel including a first wall and a second wall, the vessel being on the body member;
- an air passage on the body member, the air passage including a first end and a second end, the first end opening into the container, the second end being selectively opened and closed by the vessel;
- an inlet slit on the first wall, the inlet slit being configured to open one way in response to a decreased pressure in the chamber;
- and
- an outlet slit on the second wall, the outlet slit being configured to open one way in response to an increased pressure in the chamber.
Dependencies are inferred from the claim text.