Pneumatically powered impact device and method
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United States of America Patent
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Apr 16, 2013
Grant Date -
Aug 4, 2011
app pub date -
Feb 2, 2010
filing date -
Feb 2, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pneumatic impact device and method provide a high powered striking force against a target object. The device includes a core shell that houses a piston sub-assembly and a sear arm sub-assembly, and that further defines a forward gas chamber and a rearward gas chamber. The rearward gas chamber is loaded with compressed fluid via a handle actuator. A mostly external sear trigger assembly responds to the impact of a striker plate against the target object, thereby releasing a sear arm that then releases a piston, which is then accelerated forward by the compressed fluid charge. The device can be re-set manually via compressed fluid (e.g., air) in one embodiment, or automatically via a spring mechanism in another embodiment.
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