US 11,654,390 B2
Filter systems, elements and methods with short-range wireless tracking features
Danny W. Miller, Ackley, IA (US); and Daniel E. Adamek, Bloomington, MN (US)
Assigned to Donaldson Company, Inc., Bloomington, MN (US)
Filed by Donaldson Company, Inc., Minneapolis, MN (US)
Filed on Jun. 30, 2021, as Appl. No. 17/363,947.
Application 17/363,947 is a continuation of application No. 16/898,106, filed on Jun. 10, 2020, granted, now 11,090,599.
Application 16/898,106 is a continuation of application No. 16/572,246, filed on Sep. 16, 2019, granted, now 10,702,823, issued on Jul. 7, 2020.
Application 16/572,246 is a continuation of application No. 16/102,277, filed on Aug. 13, 2018, granted, now 10,427,082, issued on Oct. 1, 2019.
Claims priority of provisional application 62/546,246, filed on Aug. 16, 2017.
Prior Publication US 2021/0402342 A1, Dec. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 46/42 (2006.01); B01D 29/01 (2006.01); B01D 29/11 (2006.01); B01D 29/58 (2006.01); B01D 35/143 (2006.01); B01D 46/00 (2022.01); H04W 4/80 (2018.01); B01D 27/08 (2006.01); H04W 4/02 (2018.01)
CPC B01D 46/429 (2013.01) [B01D 27/08 (2013.01); B01D 29/01 (2013.01); B01D 29/111 (2013.01); B01D 29/114 (2013.01); B01D 29/58 (2013.01); B01D 35/143 (2013.01); B01D 46/009 (2013.01); H04W 4/023 (2013.01); H04W 4/80 (2018.02); B01D 2201/291 (2013.01); B01D 2201/302 (2013.01); B01D 2201/52 (2013.01); B01D 2201/56 (2013.01); B01D 2265/026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A filtration system comprising:
a housing comprising a fluid inlet and a fluid outlet, the housing defining an internal volume;
a first filter element configured to be removably attached to the housing;
a short-range wireless communication tag associated with the first filter element;
a short-range wireless communication reader associated with the housing, the reader configured to wirelessly send data to and receive data from the short-range wireless communication tag when the short-range wireless communication reader and the short-range wireless communication tag are at a distance that is less than or equal to a communication distance;
wherein removal of the first filter element from the housing causes movement of the short-range wireless communication tag away from the short-range wireless communication reader by an amount that causes the distance between the short-range wireless communication tag and the short-range wireless communication reader to exceed the communication distance; and
a system controller, the system controller configured to receive electrical signals from the short-range wireless communication reader;
the system controller configured to identify and record patterns in the electrical signals received from the short-range wireless communication reader, the patterns comprising OFF phases corresponding to periods of no communication between the short-range wireless communication tag and the short-range wireless communication reader and ON phases corresponding to periods of communication between the short-range wireless communication tag and the short-range wireless communication reader.