Pneumatic actuator and portable tool
AssigneeArmen Sargesjan
InventorsArmen Sargesjan, Gabriël Meers, Wesley Devries
Life of this patent
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Abstract
A pneumatic actuator (240), comprising: a pressure reducer (270) for delivering gas under a reduced pressure to a control valve; the control valve (280) selectively supplying gas to a pneumatic cylinder (290) or discharging gas from the cylinder (290) to the environment; a replaceable gas capsule (260) for supplying the gas under increased pressure; where the actuator has a first mode of operation for moving the piston (293) to the extended position, and has a second mode of operation for retracting the piston (293). A method for assembling a pneumatic actuator. A portable tool, a clamping device, a screw clamp comprising such a pneumatic actuator. A method for assembling the screw clamp. A method for repairing the screw clamp.
Claims20
A pneumatic actuator, comprising:
- a replaceable gas capsule with a capsule outlet, for supplying a gas under elevated pressure;
- a pressure reducer connected with an outlet of the gas capsule, adapted for providing gas under a reduced pressure;
- a control valve connected with an outlet of the pressure reducer for receiving the gas under reduced pressure, having a first outlet for selectively supplying the gas to a pneumatic cylinder, and having a second outlet for selectively discharging the gas from the cylinder into the environment;
- the pneumatic cylinder with a piston that is movable from a retracted position to an extended position.
A method for assembling a pneumatic actuator, the method comprising:
- providing a body comprising a pressure reducer and a control valve;
- inserting at least one control pin, and at least one ball or first element having a collar, and at least one spring in an opening of the body;
- sealing the opening at the side of the spring;
- screwing in a hardened transition element in the body;
- and
- heating a first aluminium casing, and applying the first aluminium casing in heated state around the body, and crimping the first aluminium casing.
Dependencies are inferred from the claim text.