Patent ID: 11939760
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E  Y | IPC E

Claim 12:
13. The method of claim 12, further including the steps of:
detecting the vacuum level at the collection station after specifying the first new vacuum level operating range for the collection station;
detecting the vacuum level at the location in the system after specifying the first new vacuum level operating range for the collection station;
comparing the vacuum level detected at the location in the system after the vacuum level operating range for the collection station has been reduced with the specified vacuum level for the location; and
if the vacuum level detected at the location in the system after the vacuum level operating range for the collection station has been reduced is equal to or greater than the specified vacuum level for the location and the vacuum level detected at the collection station after the vacuum level operating range for the collection station has been reduced is within the first new vacuum level operating range for the collection station, specifying a second new vacuum level operating range for the collection station equal in magnitude to the specified vacuum level operating range for the collection station and having a lower upper limit than the first new specified vacuum level operating range for the collection station.