Safety device for pneumatic actuators

Details Safety device for pneumatic actuators Safety device for pneumatic actuators

1998-04-08

2000-07-11

Ryznic, John E.

Expansible chamber devices

Oscillating working member or cylinder therefor

Oscillatory shaft with radially extending vane

92165R, F01C 900, F16J 1518

Patent

active

060856351

ABSTRACT:
The invention relates to a safety device for pneumatic actuators, for preventing the actuator pinion from being violently ejected, comprising a circular seat, formed on the less diameter portion of the pinion, projecting from the actuator body, and housing a resilient ring element. The resilient ring element engages with the pinion restraining elements, provided on the less diameter portion of the pinion outside of the actuator body, for a time required for allowing the pressure inside the actuator body to be released, through a slot defined about the pinion larger diameter section because of the disengagement of the corresponding sealing gasket from the actuator body.

REFERENCES:
patent: 2911956 (1959-11-01), Smith, Jr.
patent: 3014462 (1961-12-01), Bloom et al.
patent: 3023741 (1962-03-01), O'Connor
patent: 3049102 (1962-08-01), Reimer et al.
patent: 3049103 (1962-08-01), Dumm

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