Pneumatic tool with an improved soundproof device
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United States of America Patent
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-
Dec 13, 2011
Grant Date -
Nov 18, 2010
app pub date -
May 15, 2009
filing date -
May 15, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pneumatic tool with an improved soundproof device includes a housing whose rear end has a screw hole for supplying a high-pressure gas. The input high-pressure gas drives a pneumatic motor before it leaves the rear end of the housing. A cover covers the rear end of the housing. The cover has a penetrating hole. A guiding element has a guiding section that gradually expands outwards. The guiding element goes through the penetrating hole. An annular ventilation space is formed between the guiding section of the guiding element and the penetrating hole. A gas inlet connector is disposed in the screw hole. The shoulder part of the gas inlet connector stops the guiding element, so that the gas in the ventilation space is guided by the guiding section of the guiding element to escape.
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