Patent ID: 9574714
Date: 2017-02-21
CPC Classifications: B05C,B29B,B65G,F17D,Y10T

Claim:
1. A method for operating an adhesive melter including a receiving space for solid adhesive particulate, a heater unit receiving the solid adhesive particulate from the receiving space, a fill system configured to refill the receiving space with solid adhesive particulate, and an exhaust air filter, the method comprising: repeatedly actuating the fill system to perform a fill system cycle that refills the receiving space with the solid adhesive particulate delivered with a pressurized air flow into the receiving space, the pressurized air flow being exhausted from the receiving space through the exhaust air filter; melting the solid adhesive particulate received in the heater unit from the receiving space into melted adhesive; monitoring a duration of each of the fill system cycles; calculating an average duration for a plurality of the fill system cycles; detecting a change in the average duration for the fill system cycles; and emitting an alert if the detected change exceeds a maintenance threshold that is indicative of the exhaust air filter becoming clogged and requiring maintenance.