Patent ID: 7201287
Filing Date: 2007-04-10
Classification: B65D

Abstract:
1. A venting device adapted to be sealingly received in an opening of a drum, the device comprising: a body having a pair of opposing sides and defining a plurality of vent passages, each vent passage having an opening at each of the pair of opposing sides and extending through the body, the vent passages being spaced apart and arranged around a center portion of the body; a membrane structure covering the openings of the vent passages on one of the pair of opposing sides of the body, the membrane structure being sealingly affixed to the body portion along an outer sealing band surrounding the openings of the vent passages and along at least one cross sealing band extending across the membrane structure, all other portions of the membrane structure being free from attachment to the body portion; and a protective structure attached to the body and positioned over the membrane structure.