초록 ▼

The invention relates to a muffler for portable pneumatic tools wherein the exhaust of the pneumatic motor is passed into an expansion chamber having a perforated outlet baffle biased to the direction of the flow in the chamber. The flow from the expansion chamber enters a muffler chamber having an

The invention relates to a muffler for portable pneumatic tools wherein the exhaust of the pneumatic motor is passed into an expansion chamber having a perforated outlet baffle biased to the direction of the flow in the chamber. The flow from the expansion chamber enters a muffler chamber having an outlet baffle also biased to the direction of fluid flow. Both the first and second baffle are formed in an end cap for the handle of the pneumatic tool and form a removable extension thereof.

대표청구항 ▼

A muffler for portable pneumatic power tools or the like which exhaust pneumatic fluid to atmosphere comprising: an enclosure attached to the power tool forming a muffler chamber receiving the exhaust pneumatic fluid; a first perforated baffle plate forming one wall of said enclosure for passing the

A muffler for portable pneumatic power tools or the like which exhaust pneumatic fluid to atmosphere comprising: an enclosure attached to the power tool forming a muffler chamber receiving the exhaust pneumatic fluid; a first perforated baffle plate forming one wall of said enclosure for passing the exhaust pneumatic fluid into said muffler chamber; a second perforated baffle plate opposite said first perforated baffle plate forming a second wall of said enclosure for passing the exhaust pneumatic fluid in one direction of fluid flow through said enclosure and said muffler chamber and out of said muffler chamber to the atmosphere; and said second perforated baffle is set at an angle biased to the direction of exhaust pneumatic fluid flow through said muffler chamber, and at an angle biased to said first perforated baffle plate.