Patent ID: 7185645

Claim:
A compressed air gun for use by police and firefighting forces for breaking open doors, comprising a compressed air cannon ( 1 ) including an ammunition ball ( 2 ), said compressed air cannon having a compressed air chamber ( 11 ), a barrel ( 12 ) extending from the compressed air chamber ( 11 ) and being provided at its rear end near the compressed air chamber ( 11 ) with an insert opening ( 17 ) for placing the ammunition bail ( 2 ) into the barrel ( 12 ), a closure sleeve ( 15 ) axially movably disposed on the barrel ( 12 ) for closing the insert opening ( 17 ), means ( 18 ) connected to the closure sleeve ( 15 ) for retaining the ammunition ball ( 2 ) in the barrel ( 12 ) at the end thereof adjacent the compressed air chamber ( 11 ) and a manually operable discharge valve ( 19 ) for releasing the compressed air from the compressed air chamber ( 11 ) into the barrel ( 12 ) for driving the ammunition ball ( 2 ) out of the barrel, said ammunition ball ( 2 ) consisting of a hollow plastic ball filled with a material.