Percussion tool

Details Percussion tool Percussion tool

B - Operations, Transporting

25

D

121/22

B25D 9/16 (2006.01) B25D 9/14 (2006.01) B25D 17/06 (2006.01)

Patent

CA 1229269

ABSTRACT OF THE DISCLOSURE A percussion tool utilizing a reciprocatory piston movement for applying an impact force on to a working surface including a casing (1) having disposed axially therein a hammer member (12), an anvil (5) impacted by the hammer member and a chisel point (4) supported by the anvil. A spool valve (18) is located within the interior of the hammer member for reciprocatory movement in unison with the hammer member, to control the flow of a pressurized working fluid supplied to the hammer member, to thereby cyclically move the hammer member in reciprocatory movement.

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