Patent ID: 7780754

Claim:
A rapid-action connection element for a compressed air hose ( 3 ), comprising a flow-through discharge casing ( 4 ); a filter ( 5 ) located in the discharge casing ( 4 ) for sealing a flow cross-section with a compressed air flow being filtered therethrough; a flow-through pressure piston ( 7 ) extending, at least partially into the discharge casing ( 4 ), displaceable, within limits, in opposite directions, and having an outward position remote from the filter ( 5 ) in which the pressure piston ( 7 ) is sealed with respect to the discharge casing ( 4 ), and an inward position adjacent to but spaced from the filter ( 5 ) in which the pressure piston ( 7 ) is open with respect to the discharge casing ( 4 ) for flow of the medium therebetween; and a flow-through rapid-action coupling member ( 6 a ) connected with the pressure piston ( 7 ).