Abstract: A bottle and boat fender comprising a hollow body for holding a flowable material therein. The body includes a top wall portion having an opening communicating with the interior of the body, a threaded cap covering the opening, a bottom wall portion and a side wall portion disposed between the top wall portion and the bottom wall portion. The side wall forms the periphery of the body and includes two pairs of planar opposed wall portions. Each of the wall portions of one pair include a pair of conical depressions therein which are aligned with a pair of conical depressions in the the opposed wall portion. The bottom of the aligned opposed depressions forms a common wall therebetween which includes an aperture of sufficient size to accomodate nautical rope therethrough. One aperture is located below the top wall and the other aperture is located above the bottom wall.

Abstract: Provided is a device for preventing the inward deformation of a hollow plastic container which would normally inwardly deform after closure due to the cooling of hot liquids therein. The device comprises a membrane extending across the container spout for sealing the spout, which membrane is more flexible than the walls of the container, means for securing the membrane into sealing engagement with the spout, and means for applying the ambient pressure existing on the outside of the container to the outside of the surface of the membrane.