Pressure difference compensation membrane
AssigneeSociete BIC
InventorsAnne-Lise Damiano, Olivier Albenge, Christelle Debrauwer
Life of this patent
Estimating the term…
Abstract
A compensation membrane for compensating a pressure difference between the outside and the inside of a free ink reservoir of a pen or the equivalent, the membrane comprising a first portion having a first rigidity, and a second portion having a second rigidity, the first rigidity being less than the second rigidity. A pen or the equivalent comprising a free ink reservoir provided with such a compensation membrane.
Claims17
A compensation membrane for compensating a pressure difference between an outside and an inside of a free ink reservoir of a pen, the compensation membrane comprising a first portion having a first rigidity, a second portion having a second rigidity, the first rigidity being less than the second rigidity, and a flyweight disposed between the first portion and the second portion.
Dependencies are inferred from the claim text.