LIQUID STREAM WRITING TOOL Russian patent published in 2007 - IPC B43K8/22 

FIELD: writing tools.

SUBSTANCE: writing tool contains vessel for liquid, liquid discharge head, while liquid discharge head is meant for discharging liquid onto substrate at distance, and processing block, meant for activating discharging head. Tool additionally contains measuring means, meant for measuring distance between discharge head and substrate, and means for determining movement of discharge head respectively to substrate, while processing block is made with possible control over activation of liquid discharge head, when, on one side, it is determined by measurement means that distance between discharge head and substrate is equal to value, lesser than predetermined maximal value, and on other side, movement detection means detect movement of discharge head relatively to substrate.

EFFECT: prevented contact of stylus with wet liquid and its blotting across substrate during normal usage of writing tool.

13 cl, 3 dwg