Donaldson Comapny, Inc.

Douglas Jon Nagel

Steven K Campbell

Richard Patrick Manahan

Michael J Lockert, Jr

Mark J Gailloux

Michael J Lockert

An air cleaner assembly with a restriction indicator includes a housing having an exterior surface around an interior volume. The housing includes a bore extending through a portion of the exterior surface of the housing surrounded by a bore wall protruding from the portion of the exterior surface. A receptacle wall of the housing is disposed around the bore wall and is radially spaced from the bore wall to form a channel between the bore wall and the receptacle wall. A restriction indicator measures a restriction in the interior volume and displays an indication of the restriction. The restriction indicator includes a stem that is at least partially insertable into the bore that engages an inner surface of the bore wall. One or more tabs of the restriction indicator are at least partially insertable in the channel and removably couple to the receptacle wall.

Air cleaner assembly with restriction indicator

An air cleaner assembly with a restriction indicator () includes a housing () having an exterior surface around an interior volume. The housing includes a bore () extending through a portion of the exterior surface of the housing surrounded by a bore wall () protruding from the portion of the exterior surface. A receptacle wall of the housing is disposed around the bore wall and is radially spaced from the bore wall to form a channel () between the bore wall and the receptacle wall. A restriction indicator () measures a restriction in the interior volume and displays an indication of the restriction. The restriction indicator includes a stem () that is at least partially insertable into the bore that engages an inner surface of the bore wall. One or more tabs () of the restriction indicator are at least partially insertable in the channel and removably couple to the receptacle wall.

An air brake filter assembly and methods are shown. Example configurations include a filter lock that holds an indicator in an actuated position after a filter has become clogged. Example configurations may also include a bypass pathway to allow air to bypass the filter when the filter is clogged.

Air brake filter and method

Swivel actuating pressure switching devices and methods are described herein that include a shorting member that translates and rotates into contact with one or more terminals in response to the application of a specified pressure to a piston included in the switch. The rotation of the shorting member with respect to the one or more terminals can be controlled by a receptacle that can include flutes, which guide the rotational movement of the shorting member in response to fluid pressure that causes the translation of the piston.

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Stout, IA, United States of America

Douglas Jon Nagel