B - Operations – Transporting – 25 – D
Patent
B - Operations, Transporting
25
D
121/16
B25D 17/00 (2006.01) B25D 17/24 (2006.01)
Patent
CA 1276513
ABSTRACT OF THE DISCLOSURE A pneumatic impact tool having a special cushioning assembly for cushioning the repeated recoil of a hammer piston and thereby providing substantially reduced tool vibration during use. The cushioning assembly includes an energy-dissipating damping sub-assembly and an energy-storing coil spring sub-assembly arranged in series with each other such that they operate simultaneously, yet independently, to cushion the hammer piston's rearward movement over a wide range of operating speeds.
545353
Dessouky Ahmed El
Elkin Robert D.
Deutsch Al
Gowling Lafleur Henderson Llp
LandOfFree
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