Percussion tool
AssigneeMilwaukee Electric Tool Corporation
InventorsMatthew S. Zawisza, Andrew D. Van Hoorn, Ethan T. Zimany
Life of this patent
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Abstract
A percussion tool comprises a housing and an electric motor positioned within the housing. The percussion tool further comprises a battery pack supported by the housing for providing power to the motor. The battery pack includes a plurality of battery cells having a nominal voltage of up to 120 Volts. The percussion tool further comprises a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing. The percussion tool has a ratio of impact energy to mass that is greater than or equal to 2.5 Joules/kilogram.
Claims36
A percussion tool comprising:
- a housing;
- an electric motor positioned within the housing;
- a battery pack supported by the housing for providing power to the motor, the battery pack including a plurality of battery cells having a nominal voltage of up to 120 Volts;
- and
- a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing,
- wherein the percussion tool has a ratio of impact energy to mass that is greater than or equal to 2.5 Joules/kilogram.
A percussion tool comprising:
- a housing;
- an electric motor positioned within the housing;
- a battery pack supported by the housing for providing power to the motor, the battery pack including a plurality of battery cells having a nominal voltage of up to 120 Volts;
- and
- a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing,
- wherein the percussion tool has a ratio of blow power to mass that is greater than or equal to 50 W/kg.
A percussion tool comprising:
- a housing;
- an electric motor positioned within the housing;
- a battery pack supported by the housing for providing power to the motor, the battery pack including a plurality of battery cells having a nominal voltage of up to 120 Volts;
- and
- a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing;
- wherein the percussion tool delivers greater than or equal to 85 kJ of impact energy per minute.
Dependencies are inferred from the claim text.