Hoffman Enclosures Inc.

Seng Chang

Jeffrey Thibedeau

Michael J Koehler

Michael Springstead

William Joseph Nepsha

Adam Pawlowski

Paul H Landgraf

Douglas L Neuenfeldt

Richard L Raisanen

Klaus-Peter Bachmann

William J Nepsha

A shroud assembly can include a support frame with a locking slot and a hinge slot, and a shroud with a first pin and a second pin. The locking slot can receive the first pin to secure the shroud in a closed configuration. The hinge slot can receive the second pin to support the shroud in the closed configuration, in an open configuration, and during hinging of the shroud between the closed and open configurations. A tab can engage a notch to support the shroud at a predetermined angle relative to the support frame when the shroud is in the open configuration.

Fan shroud

A filter housing can support filter media for a fan arrangement. The filter housing can include a filter body with a first opening at a first end and a second opening at a second end. A bell portion can be disposed between the air inlet opening and the air outlet opening and can define a cavity within the housing body. An air-permeable filter support can extend into the cavity to support the filter media within the cavity, with the filter media spaced apart from at least one of the first and second openings.

Filter housing for filter fan

Support for a fan shroud

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Minneapolis, MN, United States of America

Seng Chang