Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
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B25D
PERCUSSIVE TOOLS
Load children
9/00
Portable percussive tools with fluid-pressure drive,; i.e. driven directly by fluids; , e.g. having several percussive tool bits operated simultaneously
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B25D9/14
Control devices for the reciprocating piston
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B25D9/24
involving a rocking-plate type valve
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B25D9/24

Head Valve System for Air Spring Power Tool
20230081812 · 2023-03-16 ·

A power tool includes an air spring cylinder. A piston is movably positioned within the cylinder. A head valve assembly of the power tool includes a flapper valve configured to seal the air spring cylinder from an air accumulator when the flapper valve is in a non-firing position.

Head Valve System for Air Spring Power Tool
20230081812 · 2023-03-16 ·

A power tool includes an air spring cylinder. A piston is movably positioned within the cylinder. A head valve assembly of the power tool includes a flapper valve configured to seal the air spring cylinder from an air accumulator when the flapper valve is in a non-firing position.

Head valve system for air spring power tool
12263568 · 2025-04-01 · ·

A power tool includes an air spring cylinder. A piston is movably positioned within the cylinder. A head valve assembly of the power tool includes a flapper valve configured to seal the air spring cylinder from an air accumulator when the flapper valve is in a non-firing position.

Head valve system for air spring power tool
12263568 · 2025-04-01 · ·

A power tool includes an air spring cylinder. A piston is movably positioned within the cylinder. A head valve assembly of the power tool includes a flapper valve configured to seal the air spring cylinder from an air accumulator when the flapper valve is in a non-firing position.