Patent ID: 6708837
Filing Date: 2004-03-23
Classification: G01M

Abstract:
An apparatus for locking a closure assembly in a closed position, the apparatus comprising:a hub having an opening therethrough; at least one first lug projecting from the hub; a head having at least one second lug projecting from the head, wherein the head is rotatable between an unlocked position where the lugs do not interfere with each other and the head may be removed from the hub, and a closed position where the lugs at least partially overlap each other and interfere with each other so that the head is held in a sealing engagement with the hub; and a vent bore passing through at least one of the head and the hub; a first locking bore passing through the head; a second locking bore extending at least partially into the hub that is aligned with the first locking bore when the head is in the closed position; and a seal and lock device including a sealing element that seals the vent bore and a projection that projects into the first and second bores when the head is in the closed position and the sealing element is sealing the vent bore.