Ink pen has force sensor on writing tip providing control parameter for controllable valve on ink line and controllable micro-pump, pressing force determines desired flow of ink to writing tip

摘要

The pen has a sleeve-shaped pen shaft, an ink container (4) with a vent opening, a writing tip, an ink conducting system leading to the writing tip, a micro-pump (14), a valve (13) and a battery (6) or accumulator. A force sensor on the writing tip provides a control parameter for a controllable valve on the ink line (11) and a controllable micro-pump. The pressing force determines the desired flow of ink to the writing tip.