A model of a steam engine operating on pneumatic actuator
(Patent no. EE00466)
The steam engine model is made of transparent materials and coloured gases may be used to operate the model. This enables to visualise and explain the operating principles of a steam engine.

A testing device for hydraulic and pneumatic components
This testing device enables to perform controls of hydraulic and pneumatic components on site.
The device does not need electricity supply to operate.