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Tom Allan Casinge, Stig Erling Gustavsson: Pneumatic actuator system. Parker Hannifin, Frishauf Holtz Goodman & Chick P C, August 17, 2004: US06776081 (4 worldwide citation)

A pneumatic actuator system is provided which includes one or more piston-cylinder type actuators (


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Tom Allan Casinge, Stig Erling Gustavsson: Pneumatic actuator system. Parker Hannifin, Frishauf Holtz Goodman Langer & Chick, September 18, 2003: US20030173210-A1

A pneumatic actuator system including one or more piston-cylinder type actuators (14) intended for crust breaking operations at electrolytic alumina reduction baths, each actuator (14) having a working piston (21), and a piston rod (22) carrying a crust breaking working implement (17), and a control ...