Writing instrument comprising a switchable flow material
AssigneesSociete BIC, BIC Violex Single Member S.A.
InventorsPanagiotis Polygerinos, David Michael Duffy, Christopher John Wright
Life of this patent
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Abstract
The present disclosure relates to a writing instrument comprising a tubular body, a reservoir for an ink composition. The writing instrument comprises a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus. The switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface.
Claims19
A writing instrument comprising:
- a tubular body;
- a reservoir for an ink composition;
- and
- a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus, wherein the switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface and the stimulus comprises at least one of electrical energy or thermal energy.
A writing instrument comprising:
- a tubular body;
- a reservoir for an ink composition;
- and
- a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus, wherein the switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface and wherein the writing instrument comprises a power source in a form of at least one of a generator or a battery
- wherein the power source comprises a friction-based generator.
A writing instrument comprising:
- a tubular body;
- a reservoir for an ink composition;
- and
- a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus, wherein the switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface, wherein
- the switchable flow material is hydrophobic in the fluid flow preventing condition and hydrophilic in the fluid flow enabling condition.
Dependencies are inferred from the claim text.