Writing implements
AssigneeSociete BIC
InventorsPhilippe LEFEBVRE, Julien LINTERMY, Olivier ALBENGE, Guilhem LAFFONT, Philippine REYMONDON
Life of this patent
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Abstract
A writing implement including a reservoir for storing a liquid, an applicator tip for depositing the liquid on a surface, a buffer connected to the reservoir and connected to the applicator tip so as to transport the liquid from the reservoir to the applicator tip, and a normally-open valve separating the buffer from the reservoir, the valve being configured to close, to prevent flow of the liquid from the reservoir to the buffer, in response to internal pressure within the reservoir exceeding a reference pressure outside of the reservoir by more than a predetermined amount.
Claims18
A writing implement comprising a reservoir for storing a liquid, an applicator tip for depositing the liquid on a surface, a baffle or buffer system connected to the reservoir via a valve and connected to the applicator tip so as to transport the liquid from the reservoir to the applicator tip, the valve being normally-open and configured to close, to prevent flow of the liquid from the reservoir to the baffle or buffer system, in response to internal pressure within the reservoir exceeding a reference pressure outside of the reservoir by more than a predetermined amount.
9-15. (canceled)
Dependencies are inferred from the claim text.