Dispenser of powdered product having a removable reservoir

1. A dispenser of a product in powder form, comprising:

a case delimiting a housing;

a reservoir removably installed in said housing, said reservoir being adapted to contain the product in powder form and having a dispensing orifice; and

a device for obturating said dispensing orifice, wherein said device comprises at least one blocking member in the form of a shutter mounted to said reservoir for automatic pivotal movement between a position for closing said dispensing orifice and a position for opening said dispensing orifice, and

wherein said housing, said reservoir and said device are constructed to enable said reservoir to be installed in said housing by a vertical linear movement and to cause automatic movement of said shutter from the position for closing to the position for opening in response to the vertical linear movement of said reservoir into said housing

wherein said shutter is mounted at the bottom of said reservoir for only pivotal movement about the longitudinal axis of said reservoir.

2. The dispenser according to claim 1 , wherein said device further comprises a spring connected for urging said shutter toward the position for closing when said reservoir is withdrawn from said housing.

3. The dispenser according to claim 2 , wherein said housing of said case comprises a camming member cooperating with said shutter.

4. The dispenser according to claim 3 , wherein said shutter comprises a rib engaging with said camming member to cause the automatic movement of said shutter.

5. The dispenser according to claim 1 , wherein the start of vertical linear movement to install said reservoir acts to start the automatic pivotal movement of said shutter.

6. The dispenser according to claim 1 , wherein said reservoir has a cylindrical side wall and a bottom, and said dispensing orifice is a window disposed partially in said cylindrical side wall of said reservoir and partially in said bottom wall of said reservoir.

7. The dispenser according to claim 6 , wherein said shutter is mounted to undergo pivotal movement outside said reservoir and comprises a pin guided in a groove provided in said reservoir to guide the pivotal movement of said shutter.

8. The dispenser according to claim 1 , wherein said shutter is mounted to undergo pivotal movement outside said reservoir and comprises a pin guided in a groove provided in said reservoir to guide the pivotal movement of said shutter.

9. The dispenser according to claim 1 , wherein said shutter constitutes means for forming an air-tight seal for said dispensing orifice when said shutter is in the position for closing said dispensing orifice.

10. The dispenser according to claim 1 , wherein said reservoir has positioning means for assuring that said reservoir is in a defined position relative to said housing of said case.

11. The dispenser according to claim 1 , wherein said reservoir is adapted to contain ground coffee and said dispenser comprises dosing means for delivering defined quantities of ground coffee.

12. The dispenser according to claim 1 , wherein said housing of said case comprises a camming member cooperating with said shutter.

13. The dispenser according to claim 12 , wherein said shutter comprises a rib engaging with said camming member to cause the automatic movement of said shutter.

14. An automatic machine for preparation of beverages, said machine comprising a dispenser of product in powder form according to claim 1 .