Fluid dispenser member
AssigneeValois SAS
InventorFirmin Garcia
Life of this patent
Estimating the term…
Abstract
A fluid dispenser member having a dispensing wall defining an outside surface and inside surface, the wall being provided with a through dispensing orifice connecting the inside surface to the outside surface. The inside surface forming a leaktight slide cylinder for a piston suitable for moving in leaktight contact inside the cylinder for selectively unmasking the dispensing orifice. The piston forming a wall element of a fluid chamber inside which fluid is selectively put under pressure. The inside surface, at the slide cylinder, forming a fluid swirl system immediately upstream from the dispensing orifice. The dispensing wall is formed by a substantially cylindrical skirt further provided with a guide wall defining an inside surface whose inside diameter is greater than the inside diameter of the slide cylinder.
Claims17
A fluid dispenser member having a dispensing wall defining an outside surface and inside surface, said wall being provided with a through dispensing orifice connecting the inside surface to the outside surface, the inside surface forming a leaktight slide cylinder for a piston suitable for moving in leaktight contact inside said cylinder for selectively unmasking the dispensing orifice, said piston forming a wall element of a fluid chamber inside which fluid is selectively put under pressure;
- the inside surface, at the slide cylinder, forming a fluid swirl system immediately upstream from the dispensing orifice,
- wherein the dispensing wall is formed by a substantially cylindrical skirt further provided with a guide wall defining an inside surface whose inside diameter is greater than the inside diameter of the slide cylinder;
- and
- wherein the slide cylinder, the dispensing orifice and the swirl system are formed integrally with the dispensing wall.
A fluid dispenser member having a dispensing wall defining an outside surface and inside surface, said wall being provided with a through dispensing orifice connecting the inside surface to the outside surface, the inside surface forming a leaktight slide cylinder for a piston suitable for moving in leaktight contact inside said cylinder for selectively unmasking the dispensing orifice, said piston forming a wall element of a fluid chamber inside which fluid is selectively put under pressure;
- the inside surface, at the slide cylinder, forming a fluid swirl system immediately upstream from the dispensing orifice,
- wherein the dispensing wall is formed by a substantially cylindrical skirt further provided with a guide wall defining an inside surface whose inside diameter is greater than the inside diameter of the slide cylinder;
- and
- wherein the piston is a differential piston which moves in response to variation in the pressure in the chamber, said differential piston having at least one sealing lip in leaktight sliding contact with the slide cylinder.
A fluid dispenser member, comprising:
- a piston;
- and
- a dispensing wall defining an outside surface and inside surface, the wall comprising a dispensing through hole communicating the inside surface to the outside surface;
- wherein the inside surface of the wall comprises a leaktight slide cylinder for the piston, the piston moveable in leaktight manner inside the cylinder for selectively unmasking the dispensing orifice;
- wherein the piston forms a wall element of a fluid chamber inside which fluid is selectively put under pressure;
- wherein the dispensing wall comprises a fluid swirl channel immediately upstream from the dispensing orifice, the fluid swirl channel formed in the inside surface at the slide cylinder;
- wherein the dispensing wall is formed by a substantially cylindrical skirt comprising a guide wall defining an inside surface whose inside diameter is greater than the inside diameter of the slide cylinder;
- and
- wherein the slide cylinder, the dispensing orifice and the swirl channel are formed as a one-piece integral construction with the dispensing wall.
Dependencies are inferred from the claim text.