Actuation system
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Jun 23, 2014
filing date -
Dec 24, 2008
priority date (Note) -
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Abstract
A device includes an actuation system with a dose chamber including an inlet for high pressure fluid. A working chamber extends away from the dose chamber. An annular wall separates a portion of the working chamber from the dose chamber such that the dose chamber encompasses the portion of the working chamber. In use an item to be driven along the working chamber is at least partially within the surrounded portion of the working chamber with the item at one end of its travel in the working chamber. A valve mechanism selectively allows high pressure fluid from the dose chamber to flow into the piston chamber.
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