Air filter gauge

Details Air filter gauge Air filter gauge

B - Operations, Transporting

01

D

B01D 46/42 (2006.01) B60H 3/06 (2006.01)

Patent

CA 2303729

An air filter cleanness gauge is provided. The gauge in a preferred embodiment includes a transparent cover. The housing has a first opening for fluid communication with the atmosphere and a second opening having fluid communication with a fluid source exposed to a filter. A vane is pivotally connected within the housing and provides a pressure boundary between the first and second openings. Movement of the vane indicates a change in pressure differential between the atmosphere and the fluid source, thereby indicating a need to change the air filter.

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