Donaldson Comapny, Inc.

John D Sandkamp

Larry R Nepsund

Thomas A Boeckermann

Assembly is described for providing a radial seal between two air conduit members. The assembly generally comprises a first conduit member having seal retainer thereon and, second conduit member having a tubular section which is inserted into the seal retainer, during formation of the radial seal. The seal retainer comprises a retainer trough having a removable and replaceable seal ring positioned therein.

Joint and seal system for air transfer tubes

An air cleaner with an integrated nozzle element comprised of a perforated portion at one end, a generally centrally located throat and a noise suppressing portion from the second end to the throat. The nozzle element is located within the inner opening of the air cleaner's tubular filter element. The perforated portion is arranged and configured to be the same size and shape as the inner opening to provide support for the tubular filter element, the throat is arranged and configured to provide the required restriction to create a specified negative engine crankcase pressure, and the noise suppressing portion is arranged and configured to provide the required attenuation of engine intake noise passing through the air cleaner.

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Minnetonka, MN, United States of America

John D Sandkamp