Patent ID: 9145977
Filing Date: 2015-09-29
Classification: F15B,F16K,Y10T

Abstract:
1. An actuator for actuating a plunger, the actuator comprising: a main inlet and a main outlet; first and second caps facing one another, the second cap being provided with a cap channel; a main actuation assembly provided between the first and second hollow caps, comprising: an actuating stem slidably fitting in the cap channel, a portion of the stem extending outside of the second cap, said portion of the stem being connectable to the plunger, the actuating stem cooperating with the main piston so as to slide within the cap channel when the main piston moves between the actuated and unactuated positions; and a biasing element biasing the main piston towards the unactuated position; at least one stackable actuation assembly provided between the first and second hollow caps comprising: