Device for delivering metered quantities of a liquid or pasty product
AssigneeErca
InventorBernard GANDON
Life of this patent
Estimating the term…
Abstract
The device comprises at least one piece of equipment that has a metering chamber (38) in which a piston (26) is mounted to move back and forth between a filling position and a discharge position. The metering chamber is, at least in part, defined inside a cylinder (24) in which the piston moves, which is disposed in a substance reservoir (10), and which is itself mounted to move back and forth between an open position in which a feed opening (36) of the cylinder is opened up and a closed position in which the feed opening is closed off. The piston is connected to a controlled back-and-forth movement mechanism.
Claims13
A device for dispensing metered quantities of a liquid or semi-liquid substance, the device comprising at least one piece of substance metering and dispensing equipment that has a metering chamber in which a piston is mounted to move back and forth between a filling position in which substance is fed via a feed opening and a discharge position in which substance is discharged via a substance outlet, the metering chamber being, at least in part, defined inside a cylinder having a feed opening and in which the piston moves, the cylinder being disposed in a substance reservoir, and itself being mounted to move back and forth between an open position in which the feed opening is opened up and a closed position in which the feed opening is closed off
- the piston having a head carried by a control rod that passes through an extension of the cylinder and that is connected to a piston movement mechanism suitable for being controlled to cause the piston to move back and forth.
Dependencies are inferred from the claim text.