FLUTED AIR ACTUATOR

摘要

An air actuator has a pair of spaced end members for mounting the air actuator at spaced locations on a structure. A flexible sleeve of elastomeric material is sealingly engaged with the end members and forms a pressurized fluid chamber therebetween. One of the end members is a piston assembly of a fluted construction with a negatively tapered outer wall provided by the flutes positioned along the outer wall whereby the flutes are designed to enable the piston to be formed in a less expensive manner using a straight core tool. The interior chamber of the piston assembly is of a cylindrical shape with a uniform annular wall and a base.