Abstract: A spout for a liquid container, such as a gasoline container, as well as a container equipped with the spout. The spout comprises a fluid passage and a vent passage fluidically parallel with the fluid passage. The fluid passage has an inlet, an outlet, and an S-shaped portion between the inlet and outlet. The vent passage has an inlet adjacent the outlet of the fluid passage. The S-shaped portion of the fluid passage is configured to entrap a liquid therein, causing a liquid lock to form, when a liquid is dispensed through the spout and air is prevented from flowing through the vent passage. In this manner, the spout is capable of preventing the overfilling of a receptacle tank being filled with fluid dispensed from a container equipped with the spout when the fluid level in the receptacle tank blocks the flow of air into the inlet of the vent passage.

Abstract: A three-dimensional puzzle cube that offers multiple solutions, each presenting multiple composite images. The composite images are assembled by appropriately arranging individual blocks of the puzzle cube. The blocks are not interconnected, but free to be arranged in a manner required to display the images. The picture puzzle cube generally entails a three-dimensional array of blocks that are arrangeable to form a number of the composite images. The picture puzzle cube has six composite faces defined by the three-dimensional array of blocks, each composite faces being formed by a two-dimensional array of the blocks. Each block has six faces, each face having a fragmentary image of one of the composite images. Six composite images are visible on the six composite faces of the picture puzzle cube at any give time, with the picture puzzle cube having multiple solutions in which a given combination of six composite images are visible.

Abstract: A spout for a liquid container, such as a gasoline container, as well as a container equipped with the spout. The spout comprises a fluid passage and a vent passage fluidically parallel with the fluid passage. The fluid passage has an inlet, an outlet, and an S-shaped portion between the inlet and outlet. The vent passage has an inlet adjacent the outlet of the fluid passage. The S-shaped portion of the fluid passage is configured to entrap a liquid therein, causing a liquid lock to form, when a liquid is dispensed through the spout and air is prevented from flowing through the vent passage. In this manner, the spout is capable of preventing the overfilling of a receptacle tank being filled with fluid dispensed from a container equipped with the spout when the fluid level in the receptacle tank blocks the flow of air into the inlet of the vent passage.