Low pressure shut off for a pneumatic tool
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Feb 24, 2014
filing date -
Feb 26, 2013
priority date (Note) -
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Abstract
A low pressure shut off for a pneumatic tool. The tool may include an air path for input air. A shaft may be positioned along the air path and movable relative to the air path between a first position and a second position. First and second pistons may be spaced axially apart along the shaft and each may extend radially outward beyond the shaft. In the first position, the first piston may extend across the air path to block the air path. In the second position, the second piston may be positioned to be acted on by air from a secondary inlet to apply a force to the second piston that overcomes a biasing force and positions the first piston to allow air to flow along the air path.
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