Nonrotary piston for jackhammer and removable splined nut...

Details Nonrotary piston for jackhammer and removable splined nut... Nonrotary piston for jackhammer and removable splined nut...

B - Operations, Transporting

25

D

B25D 16/00 (2006.01) B25D 17/26 (2006.01) E21B 6/06 (2006.01)

Patent

CA 2145301

A fluid-activated, percussive impact tool has a piston (46) therein that reciprocates longitudinally but not rotationally. The piston activates a wrap spring clutch (96) to rotate the drill steel. A removable splined nut (84) in combination with the tool's housing (42) restrains rotation of the piston, while permitting longitudinal reciprocation of the piston.

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