SLIDING WRITING TOOL INCORPORATING ANTI-DRYING-OUT DEVICE Russian patent published in 2010 - IPC B43K5/17 B43K24/06 

FIELD: mechanics.

SUBSTANCE: proposed writing tool incorporates anti-drying-out device. It comprises also hollow rod with hole for pen made at its front end. Lock axle seats extend from rod inner wall. Cylinder is jointed to said rod. Impact part is fitted into rod bore, while a pair of pressure parts is arranged on pen elongated rod. Cylinder end is embraced by rear O-ring. Said rear O-ring accommodates spherical lock to isolate pen from outer space. Spring first end stays in contact with cylinder step lower end and second stays in contact with rear O-ring step.

EFFECT: efficient seal of pen.

9 cl, 26 dwg