Ingersoll-Rand Company

Joseph W Sullivan

Richard K Gardner

Nicholas Kozumplik, Jr

Gerald M Distel

Roger D Wieland

Rick D Hoover

A muffler for use with a pneumatic motor the muffler including a housing having a first longitudinal wall, a second longitudinal wall, a first lateral wall, a second lateral wall, and a front wall where the first and second longitudinal walls include an exhaust port and the front, longitudinal and lateral walls define a muffler chamber. The muffler also includes first and second baffle located in said muffler chamber. The first and second baffles include a first side and a second side, and each baffle extends away from a first lateral wall substantially parallel to the longitudinal walls and terminates in a baffle edge. The first and second baffles dividing the muffler chamber into at least two exhaust chambers, the baffle edges define a crossover opening for flowing an exhausted fluid to an adjacent exhaust chamber. A sound absorbing media along said first and second sides of said first and second baffles.

Muffler for pneumatic device

An open path low back pressure muffler for reciprocating air motor pulsing exhaust providing an increased area inlet orifice, double flow path reversal with directional flow assistance and a turnable sound absorbing lined duct exit.

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Lafayette, IN, United States of America

Joseph W Sullivan