Overpack salvage drum and related methods

摘要

An overpack salvage drum including a drum body and a lid. A bottom wall and side wall of the drum body cooperate to define an interior of the drum body. The lid is configured to close an open top of the drum body. The lid includes at least two independent lid threads to engage with corresponding independent drum threads provided on the drum body. The lid includes a plurality of alternating castellations having a flat inner facing side and castellations having an arcuate inner facing side, which can be interdigitated with castellations on another lid when two lids are stacked together, or can be used to lock with a drum body to rotationally secure a drum body relative to the lid when in a stacked arrangement. The lids include lugs and recesses, or rings that allow for secure stacking of the lids.

主权项

1. An overpack salvage drum comprising:
a drum body including a bottom wall, a side wall, and an open top, the bottom wall and side wall cooperating to define an interior volume of the drum body; and a lid configured to close the open top of the drum body; wherein the lid includes a plurality of castellations that extend upwardly from a top side of the lid, wherein the plurality of castellations are arranged circumferentially at a periphery of the top side of the lid and are separated from each other by gaps, wherein when the top side of the lid is viewed in plan, the gaps separating the plurality of castellations have a larger circumferential dimension than the plurality of castellations, wherein the plurality of castellations comprises a first type of castellations and a second type of castellations, wherein the first and second types of castellations are alternatingly arranged at the periphery of the top side of the lid, wherein the first type of castellations extend farther in toward the center of the lid as compared to the second type of castellations, and wherein the drum body includes a plurality of recesses in the side wall that are configured to receive the first type of castellations when the bottom wall of the drum body contacts the top side of the lid and thereby inhibit the drum body from rotating relative to the lid.