Patent ID: 7708178

Claim:
A tool ( 12 ) for breaking hard material, comprising: a. a body ( 14 ) having an opening ( 16 ) therethrough forming a barrel ( 18 ), wherein the barrel ( 18 ) has a top and a bottom ( 20 and 22 ), an opening ( 30 ) at the bottom ( 22 ) thereof, and a pressure input ( 44 ) for fluid communication into the barrel ( 18 ), and the barrel ( 18 ) receives a piston ( 24 ) therein, and has a magnet ( 23 ) at the top ( 20 ) of the barrel ( 18 ), which magnet ( 23 ) is contiguous with the pressure input ( 44 ); b. an actuator pin tube ( 26 ) having first and second ends ( 32 and 34 ), and an opening ( 36 ) therethrough for slidably engaging an actuator pin ( 38 ), wherein the first end ( 32 ) of the actuator pin tube ( 26 ) is engaged securely in the opening ( 30 ) at the bottom ( 22 ) of the barrel ( 18 ), and the second end ( 34 ) of the actuator pin tube ( 26 ) extends from the opening ( 30 ) at the bottom ( 22 ) of the barrel ( 18 ); c. the actuator pin ( 38 ) having a tip ( 40 ) and a retention head ( 42 ) at opposing ends ( 41 and 43 ) thereof, wherein the retention head ( 42 ) is wider than the opening ( 36 ) in the actuator pin tube ( 26 ), and the actuator pin ( 38 ) is longer than the actuator pin tube ( 26 ) permitting the tip ( 40 ) to extend through the second end ( 34 ) of the actuator pin tube ( 26 ); and d. the piston ( 24 ) having a top ( 52 ) and a bottom ( 54 ), and being slidably disposed in the barrel ( 18 ) between the magnet ( 23 ) and the retention head ( 42 ), wherein the magnet ( 23 ) attracts and holds the top ( 52 ) of the piston ( 24 ) with a force M when in partial contact therewith and the pressure input ( 44 ) is in fluid communication with the top ( 52 ) of the piston ( 24 ) for forcefully dislodging the piston ( 24 ) upon applying pressure through the pressure input ( 44 ) such that the piston ( 24 ) strikes the retention head ( 42 ).