DOWN-THE-HOLE HAMMER WITH PORTED PISTON AND FLOW CONTROL VALVE
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
May 16, 2023
filing date -
May 16, 2023
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Abstract
A down-the-hole hammer includes a barrel having a longitudinal axis and defining a proximal chamber and a distal chamber, a piston slidable within the barrel between the proximal chamber and the distal chamber, and a flow control valve including a valve member slidable within the barrel along the longitudinal axis to control airflow through the piston. In a first position of the valve member, the valve member allows air flow from a proximal end of the barrel through the piston and into the distal chamber. In a second position of the valve member, the valve member allows air flow around the valve member and into the proximal chamber.
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