Ingersoll-rand Company

Roger D Wieland

Richard K Gardner

Mark D Jermeay

Gerald M Distel

Joseph W Sullivan

Gerald E Smith

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

A reciprocating pump, comprising a reciprocating motor having a housing body which includes an open first end and a base at the first end, the base substantially closes the first end of the motor housing. The motor also includes a reciprocating member movable by the motor. The member has an end and is adapted to be movable through a housing body chamber. The reciprocating pump includes a pump outlet having a first end, a second end, a pumped fluid outlet port between the ends, and a passageway joining said ends and adapted to receive the end of the reciprocating member. The passageway has a minimum width and the outlet body is connected to the pump base. The reciprocating pump also includes a pump member adapted to be flow connected to the second end of the outlet body. The pump member has a movable check for displacing the pumped fluid to the outlet, said movable check being operatively connected to said end of said reciprocating member and said check also having a width that is less than the minimum width of the passage so that the check is serviceable with the reciprocating pump in line.

Reciprocating pump with simplified seal replacement

Pneumatic motor

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Bryan, OH, United States of America

Roger D Wieland