Pneumatic point driver
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United States of America Patent
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-
Dec 31, 1991
Grant Date -
N/A
app pub date -
Oct 5, 1990
filing date -
Oct 5, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pneumatically powered point driver utilizes a valve mechanism having a core that is operated by air conducted therethrough from the supply source. The valve core is preferably provided with an enlarged head, to enhance the rapidity and firmness of the action produced.
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