US Patent 8720738 Universal cover assembly for commercial and residential propane tanks

A cover assembly that can be used with all large commercial and residential propane tanks includes a lid proportioned to fit over the collar of the propane tank, an adapter to permit pivotal attachment of the lid to the collar, a cotter pin to enable the lid to pivot opened and closed, and attaching rivets to secure the adapter to the collar. There is also a button that can be attached to the collar to maintain the lid in closed orientation. The lid can be made in a range of sizes to accommodate all large commercial and residential propane tanks currently in service. A single adapter able to conform to the curvature of the collars of all sizes of the propane tanks can be used with all of the lids.