Powder supply pump
OwnerIrene Faccio, Penelope Faccioinventors
Life of this patent
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Abstract
A pump, supplying powder for a variety of uses, has an outer body with an internal cavity; a compartment in the body has a volume which is variable on command by means of a motor drive, from a first condition, in which it fills with powder through openings that are in communication with a container that contains the powder to be dispensed, to a second condition, in which it is in contact with the initial part of a dispensing duct; a valve intercepts the duct and a first connector supplies compressed air to the compartment; a second connector controls the valve, and a third connector supplies air for the conveyance of the powder.
Claims15
A powder supply pump, comprising an outer body having an internal cavity;
- said outer body having a compartment having a volume variable on command by means of a motor drive, from a first condition to a second condition;
- in said first condition, said compartment fills with powder through openings that are in communication with a container that contains the powder to be dispensed;
- in said second condition, said compartment is in contact with an initial part of a dispensing duct;
- said pump further comprising at least one valve member, provided in said dispensing duct, and a first connector for supplying compressed air to said compartment;
- a second connector actuating said at least one valve member;
- a third connector supplying air for the conveyance of said powder, wherein said compartment has a cup arranged inside said internal cavity;
- said cup being movable between a first position, wherein said cup leaves free some of the openings which allow the entry of said powder in said internal cavity and the filling of said compartment, and a second position, wherein said cup is brought into contact with said at least one valve member;
- said cup having a duct supplying compressed air for expelling the powder.
A powder supply pump, comprising an outer body having an internal cavity;
- said outer body having a compartment having a volume variable on command by means of a motor drive, from a first condition to a second condition;
- in said first condition, said compartment fills with powder through openings that are in communication with a container that contains the powder to be dispensed;
- in said second condition, said compartment is in contact with an initial part of a dispensing duct;
- said pump further comprising at least one valve member, provided in said dispensing duct, and a first connector for supplying compressed air to said compartment;
- a second connector actuating said at least one valve member;
- a third connector supplying air for the conveyance of said powder, wherein said compartment is formed on a movable plate that moves between two fixed plates;
- a first fixed plate comprising a hole for supplying compressed air, and a second fixed plate comprising a hole for the passage of the powder to be expelled.
A powder supply pump, comprising an outer body having an internal cavity;
- said outer body having a compartment having a volume variable on command by means of a motor drive, from a first condition to a second condition;
- in said first condition, said compartment fills with powder through openings that are in communication with a container that contains the powder to be dispensed;
- in said second condition, said compartment is in contact with an initial part of a dispensing duct;
- said pump further comprising at least one valve member, provided in said dispensing duct, and a first connector for supplying compressed air to said compartment;
- a second connector actuating said at least one valve member;
- a third connector supplying air for the conveyance of said powder, wherein said compartment is formed by said internal cavity, which is closed by a piston in a lower region;
- said piston being movable between a position in which it leaves some openings free for the entry of said powder and a position in which it moves beyond said openings and allows to introduce compressed air to expel the powder.
A powder supply pump, comprising an outer body having an internal cavity;
- said outer body having a compartment having a volume variable on command by means of a motor drive, from a first condition to a second condition;
- in said first condition, said compartment fills with powder through openings that are in communication with a container that contains the powder to be dispensed;
- in said second condition, said compartment is in contact with an initial part of a dispensing duct;
- said pump further comprising at least one valve member, provided in said dispensing duct, and a first connector for supplying compressed air to said compartment;
- a second connector actuating said at least one valve member;
- a third connector supplying air for the conveyance of said powder, wherein said compartment is formed by said internal cavity, which is provided with openings for the entry of said powder;
- a movable outer sleeve being adapted to leave said openings open or close them.
Dependencies are inferred from the claim text.