Patent ID: 8074334

Claim:
A method of assembling selected cap assemblies, the method comprising the acts of: providing identical threaded portions; providing identical cover portions; providing a first vent module having a first vent member and a first mating portion for mating with one of a first one of the identical threaded portions and a first one of the identical cover portions; providing a second vent module having a second vent member different from the first vent member and a second mating portion for mating with one of a second one of the identical threaded portions and a second one of the identical cover portions, the first mating portion and the second mating portion being substantially identical; selecting the first vent module and coupling together the first vent module and the first one of the identical threaded portions and the first one of the identical cover portions to form a first cap assembly; and selecting the second vent module and coupling together the second vent module and the second one of the identical threaded portions and the second one of the identical cover portions to form a second cap assembly.