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A muffler for attenuating noise produced by a pneumatic device having limited clearance. The muffler includes a housing and an acoustic barrier material. The housing includes an inlet and an outlet. In one preferred embodiment, at least a portion of the housing is frusto-conical such that the outlet

A muffler for attenuating noise produced by a pneumatic device having limited clearance. The muffler includes a housing and an acoustic barrier material. The housing includes an inlet and an outlet. In one preferred embodiment, at least a portion of the housing is frusto-conical such that the outlet has a width greater than a diameter of the inlet. Further, the housing preferably has a maximum width less than approximately 1.5 inches (38 mm). The acoustic barrier material is disposed within the housing and is forms a plurality of microbubbles. Further, the acoustic barrier material is configured to conform to a shape of the housing. The muffler can be utilized with a pneumatic valve having limited space available for receiving the muffler, providing significant noise reduction with minimal back pressure.

대표청구항 ▼

[ What is claimed is:] [1.] A muffler for attenuating noise produced at an exhaust port of a pneumatic device, the muffler comprising:a housing including an inlet and an outlet, the inlet configured for mounting to the exhaust port, wherein at least a portion of the housing is frusto-conical such th

[ What is claimed is:] [1.] A muffler for attenuating noise produced at an exhaust port of a pneumatic device, the muffler comprising:a housing including an inlet and an outlet, the inlet configured for mounting to the exhaust port, wherein at least a portion of the housing is frusto-conical such that the outlet has a diameter greater than a diameter of the inlet; andan acoustic barrier material disposed within the housing, the acoustic barrier material including a plurality of microbubbles and being configured to conform to a shape of the housing.