• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F04B - Positive-displacement machines for liquidspumps
• F04B 9/127 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring

Patent holdings for IPC class F04B 9/127

Total number of patents in this class: 22

10-year publication summary

Principal owners for this class