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US 9,308,770 B2Granted
Refillable reservoir and fountain pen comprising such reservoir
AssigneeGrocon bvba
InventorFrancis Goossens
Life of this patent
Estimating the term…
Abstract
The invention is a reservoir having a piston assembly for filing and/or dispensing fluids contained in the reservoir. The refillable reservoir includes a cylinder defining a reservoir for containing a fluid; a piston body axially slidable in the reservoir; and a piston rod releasably fixed to the piston body for actuating the piston body. A first locking mechanism is provided between the piston body and the cylinder. A second locking mechanism is provided between the piston body and the piston rod.
Claims18
A refillable reservoir comprising:
- (a) a cylinder defining a reservoir for containing a fluid;
- (b) a piston body axially slidable in said reservoir;
- and
- (c) a piston rod releasably fixed to the piston body for actuating the piston body, the refillable reservoir further comprising:
- a first locking mechanism provided between the piston body and the cylinder;
- a second locking mechanism provided between the piston body and the piston rod, and
- a wedge fixed on said cylinder between the piston body and the cylinder, wherein the wedge is oriented axially in view of the cylinder such as to force the piston body to move axially when releasing the first locking mechanism.
4 more elements
Dependencies are inferred from the claim text.