Abstract: An expandable and contractible boat comprises a first outer hull and a second outer hull symmetrically shaped and arranged with respect to one another. The first and second outer hulls are movable relative to one another, and each of the first and second outer hulls includes an outboard side portion, an inboard side portion, a bottom portion between the outboard side portion and the inboard side portion, and a concave chine portion connecting the outboard side portion and the bottom portion. A cross-section of each of the first and second outer hulls is recessed at the concave chine portion.

Abstract: An expandable and contractible boat comprises a first outer hull and a second outer hull symmetrically shaped and arranged with respect to one another. The first and second outer hulls are movable relative to one another, and each of the first and second outer hulls includes an outboard side portion, an inboard side portion, a bottom portion between the outboard side portion and the inboard side portion, and a concave chine portion connecting the outboard side portion and the bottom portion. A cross-section of each of the first and second outer hulls is recessed at the concave chine portion.

Abstract: An expandable and contractible safety barrier for a boat includes a first barrier portion and a second barrier portion. The first barrier portion includes a first outside hinge portion. The second barrier portion includes a second outside hinge portion. The first barrier portion is pivotally connected to the second barrier portion by a middle hinge. The middle hinge is locate on an end of the first barrier portion opposite the first outside hinge portion and on an end of the second barrier portion opposite the second outside hinge portion. A latching device that removably attaches the first barrier portion to a fixed barrier includes a pin about which the first outside hinge portion pivots.

Abstract: An expandable and contractible safety barrier for a boat includes a first barrier portion and a second barrier portion. The first barrier portion includes a first outside hinge portion. The second barrier portion includes a second outside hinge portion. The first barrier portion is pivotally connected to the second barrier portion by a middle hinge. The middle hinge is locate on an end of the first barrier portion opposite the first outside hinge portion and on an end of the second barrier portion opposite the second outside hinge portion. A latching device that removably attaches the first barrier portion to a fixed barrier includes a pin about which the first outside hinge portion pivots.

Abstract: An expandable and contractible pan protects a bottom portion of an expandable and contractible floor of a boat. The pan includes a panel of flexible material tensionable to fill a space between a first hull and a second hull of the boat in an expanded state of the floor. In a contracted state of the floor, the panel of flexible material relaxes to fit between the hulls of the boat. A deflector is mountable on a front portion of the boat. The deflector covers a front edge of the panel of flexible material, thereby obscuring entry to a top surface of the panel of flexible material.

Abstract: An expandable and contractible pan protects a bottom portion of an expandable and contractible floor of a boat. The pan includes a panel of flexible material tensionable to fill a space between a first hull and a second hull of the boat in an expanded state of the floor. In a contracted state of the floor, the panel of flexible material relaxes to fit between the hulls of the boat. A deflector is mountable on a front portion of the boat. The deflector covers a front edge of the panel of flexible material, thereby obscuring entry to a top surface of the panel of flexible material.

Abstract: A pontoon boat includes two pontoons parallel to the bow to stern axis, and transverse beams which connect the pontoons. The pontoon boat has a width along the transverse beams which can vary from a contracted to an expanded state to allow for storage, and use, respectively.

Abstract: A pontoon boat includes two pontoons parallel to the bow to stern axis, and transverse beams which connect the pontoons. The pontoon boat has a width along the transverse beams which can vary from a contracted to an expanded state to allow for storage, and use, respectively.