Abstract: The present invention relates to a system integrated or retrofitted to a shoe for preventing a wearer of the shoe from becoming stuck in mud, sand, water, or any other soft terrain while walking. The system includes a pair of tubes positioned on opposing sides of the shoe/boot and a rigid attachment overlapping a portion of the sole of the shoe. A valve having a lengthwise opening can be placed between the rigid attachment and the sole such that each tube of the pair of tubes is attached to opposing ends of the valve using a pair of elbow tubes. Each elbow tube passes through a hole in the rigid attachment to connect to the valve. The valve creates a vacuum when the shoe to which the system is attached is stepped onto the terrain and when the shoe is lifted, the vacuum is released.

Abstract: The present invention relates to a system integrated or retrofitted to a shoe for preventing a wearer of the shoe from becoming stuck in mud, sand, water, or any other soft terrain while walking. The system includes a pair of tubes positioned on opposing sides of the shoe/boot and a rigid attachment overlapping a portion of the sole of the shoe. A valve having a lengthwise opening can be placed between the rigid attachment and the sole such that each tube of the pair of tubes is attached to opposing ends of the valve using a pair of elbow tubes. Each elbow tube passes through a hole in the rigid attachment to connect to the valve. The valve creates a vacuum when the shoe to which the system is attached is stepped onto the terrain and when the shoe is lifted, the vacuum is released.

Abstract: An aluminum boat hull is disclosed having an integrally molded bumper formed on the sidewalls that is securely attached and protected. The bumper is made of a first and second layer of foam covered with an outer protective layer. Formed on the outside surface of the hull sidewalls are a plurality of chambers formed between upper and lower longitudinal frame members and a plurality of intermediate frame members attached between the longitudinal frame members. Perpendicularly aligned and attached to the outside edge of each intermediate frame member is an anchor plate. Also formed on the inside surfaces of the upper and lower longitudinal frame members are upper and lower stiffeners. During manufacturing, closed-cell first foam is poured into the chambers to cover. An optional layer of fiberglass is placed over the outer surface of the first foam layer and allowed to cure. A closed-cell, second foam layer is then created over the fiberglass layer. A hardening layer is then painted over the second foam layer.

Abstract: An aluminum boat hull is disclosed having an integrally molded bumper rigid frame formed on the sidewalls that are more securely attached and protected. The bumper is made of a first and second layer of foam covered with an outer protective layer. Formed on the outside surface of the hull's sidewalls are a plurality of chambers formed between upper and lower longitudinal frame members and a plurality of intermediate frame members attached between the longitudinal frame members. Perpendicularly aligned and attached to the outside edge of each intermediate frame member is an anchor plate. Also formed on the inside surfaces of the upper and lower longitudinal frame members are upper and lower stiffeners. During manufacturing, closed-cell first foam is poured into the chambers to cover. An optional layer of fiberglass is placed over the outer surface of the first foam layer and allowed to cure. A closed-cell, second foam layer is then created over the fiberglass layer.