Back to results
US 11,867,102 B2Granted
Pneumatic tool exhaust muffler
AssigneeSnap-on Incorporated
InventorOttoleo Kuter-Arnebeck
Life of this patent
Estimating the term…
Abstract
A high pass muffler for a pneumatic tool that allows for high pass through of exhaust air. The muffler dampens noise generated by the exhaust air by incorporating channels in walls of the muffler that act as Helmholtz resonators.
Claims17
A high pass muffler disposed in an air exhaust passage of a pneumatic tool, the high pass muffler comprising:
- an outer body having an inner surface;
- an inner body that is substantially hollow disposed within the outer body and including an aperture, wherein the inner body is adapted to allow for substantially unrestricted airflow through the air exhaust passage;
- and a channel formed in the inner surface and having a first terminal end disposed proximate to the aperture, a second terminal end disposed distal to the aperture, and a curved portion or an angular corner disposed between the first and second terminal ends to collectively create a Helmholtz type resonator.
A pneumatic tool comprising:
- an air intake passage;
- an air exhaust passage;
- and a muffler disposed in the air exhaust passage, the muffler including:
- an outer body having an inner surface;
- an inner body that is substantially hollow disposed within the outer body and including an aperture, wherein the inner body is adapted to allow for substantially unrestricted airflow through the air exhaust passage;
- and a channel formed in the inner surface and having a first terminal end disposed proximate to the aperture, a second terminal end disposed distal to the aperture, and a curved portion or an angular corner disposed between the first and second terminal ends to collectively create a Helmholtz type resonator.
3 more elements
Dependencies are inferred from the claim text.