Patent ID: 11921010
Assignee: MANUFACTURING RESOURCES INTERNATIONAL, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. An electronic display assembly configured to facilitate leak testing of said assembly, said assembly comprising:
a housing;
an electronic display located within the housing and comprising a display layer and a light source;
an airflow pathway for circulating gas extending within the housing and including a testing zone;
at least one differential pressure sensor fluidly connected to said testing zone and an ambient environment, wherein said at least one differential pressure sensor is configured to detect a differential pressure between ambient air and the circulating gas;
one or more fans located within the housing; and
a controller in electronic communication with the at least one differential pressure sensor, said controller configured to:
determine a baseline differential pressure reading from the at least one differential pressure sensor when said one or more fans are all off;
start a timer upon receipt of an indication of an induced pressure change;
take subsequent differential pressure readings by way of the at least one differential pressure sensor in the testing zone;
stop the timer when a predetermined subsequent differential pressure reading is received, wherein said time between starting the timer and stopping the timer establishes an elapsed time; and
generate an alert indicating a failed leak test where the elapsed time falls below a predetermined target amount of time.