Back to results
US 9,308,057 B2Granted
Ejection device for ejecting small doses
AssigneePrimequal SA
InventorsDavid Weill, Pierre-Yves Chassot
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for ejecting a liquid or paste product, including a body (2) having a recess (11) for receiving a product to be ejected, characterized in that it includes a threaded rod (3), which is translatably movable so as to act on the product to be ejected, a bolt (5), which is mounted so as to engage with the threaded rod (3) in order to cause same to translatably move, and a lever (1) acting on the bolt (5) by means of a control means for causing the rotation thereof.
Claims16
A device for ejecting a liquid or pasty product, comprising
- a body having a recess for receiving a product to be ejected,
- a threaded rod disposed in a bore of the body, the threaded rod movable in translation to act on the product to be ejected and having a substantially cylindrical shape with a surface in the translation direction truncated in order to prevent rotation of the thread rod by engagement with a corresponding shape of the bore in the body;
- a bolt, mounted in engagement with the threaded rod to cause the threaded rod to move in translation,
- a lever, which acts on the bolt by way of a control means for causing the rotation of the bolt when the lever is pressed, and
- a non-return means connected to the body of the device and in engagement with the bolt, to prevent reverse rotation of the bolt when the lever is released,
- wherein the non-return device is fixed with respect to the body and comprises an elastic blade that is in flexible engagement with the bolt, the blade deformable from a nominal position to enable rotation of the bolt when the lever is pressed and returnable to the nominal position to prevent rotation of the bolt when the lever is released,
- wherein an end of the threaded rod is adapted to engage with a pusher piston enabled to act on the liquid or pastry product.
4 more elements
A device for ejecting a liquid or pasty product, comprising:
- a body having a recess for receiving a product to be ejected,
- a threaded rod disposed in a bore of the body, the threaded rod movable in translation to act on the product to be ejected and having a substantially cylindrical shape with a surface in the translation direction truncated to prevent rotation of the threaded rod by engagement with a corresponding shape of the bore in the body;
- a bolt, mounted in engagement with the threaded rod to cause the threaded rod to move in translation,
- a lever, which acts on the bolt by way of a control means for causing the rotation of the bolt when the lever is pressed, and
- a non-return means connected to the body of the device and in engagement with the bolt, to prevent reverse rotation of the bolt when the lever is released,
- wherein the non-return device comprises a cylindrical component formed in the area of the bore in which the threaded rod moves, the non-return device having teeth which extend in a longitudinal direction at one end and which come into engagement with at least one complementary tooth extending in a longitudinal direction of the bolt.
3 more elements
Dependencies are inferred from the claim text.