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US 2013/0277080 A1Published application
Hand-held power tool
AssigneeHilti Akiengesellschaft
InventorsMarkus Hartmann, Eduard Pfeiffer
Life of this patent
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Abstract
A hand-held power tool has a pneumatic striking mechanism (6). The striking mechanism (6) has a motor-driven exciter (12), a striker (13) and a pneumatic chamber (15) arranged along a working axis (10) between the exciter (12) and the striker (13). At least 20% of the volume of the pneumatic chamber (15) is filled with a monoatomic gas.
Claims7
A hand-held power tool comprising:
- a pneumatic striking mechanism having a motor-driven exciter, a striker and a pneumatic chamber arranged along a working axis between the exciter and the striker, at least 20% of the volume of the pneumatic chamber being filled with a monoatomic gas.
Dependencies are inferred from the claim text.