Abstract: This invention relates to a dual folding boat tower and especially to a boat tower and boat tower top assembly for folding the boat tower and tower top from a storage or down position to an erect or running position.

Abstract: This invention relates to a dual folding boat tower and especially to a boat tower and boat tower top assembly for folding the boat tower and tower top from a storage or down position to an erect or running position.

Abstract: A boat tower ventilation system for a boat tower to ventilate behind a windshield such as the cockpit area in a tower or the like. Air ventilation units are built into the tower frame and may be opened or closed to the flow of air.

Abstract: A boat tower ventilation system for a boat tower to ventilate behind a windshield such as the cockpit area in a tower or the like. Air ventilation units are built into the tower frame and may be opened or closed to the flow of air.

Abstract: This invention relates to an improved boat tower hinge which supports a boat tower for use in supporting tow lines used for towing skiers or the like. The hinge can support a boat tower in a raised position while allowing the tower to be swung to a lowered rest position. In the raised tower position the hinge wedges an elongated tongue with polymer sides into an elongated groove having polymer locking inserts to reduce the side-to-side motion of the tower.

Abstract: This invention relates to an improved boat tower hinge which supports a boat tower for use in supporting tow lines used for towing skiers or the like. The hinge can support a boat tower in a raised position while allowing the tower to be swung to a lowered rest position. In the raised tower position the hinge wedges an elongated tongue with polymer sides into an elongated groove having polymer locking inserts to reduce the side-to-side motion of the tower.

Abstract: A method and apparatus for attaching a stringer between a pair of posts includes a removably attachable bracket for supporting and aligning one end of a stringer between a pair of posts. The alignment bracket attaches to a post with compression clamping arms which are easily repositioned to adjust one end of the stringer. The method of attaching a stringer between a pair of posts uses a pair of stringer alignment brackets clamped onto two spaced posts for supporting a stringer between the posts. The stringer is leveled by repositioning the stringer alignment bracket at one end. One person can easily and rapidly attach the stringers between posts in the construction of a fence or deck.

Abstract: A removable storage tube for a marine vessel includes a hatch frame shaped to fitted in a hatch opening in a marine vessel. The hatch frame has a plurality of spaced downwardly angled notches spaced around the interior edge of the frame. A tub has an open top and a rim portion around the open top and is shaped to fit into the hatch frame. The tub has a plurality of attachment lugs on the rim portion, each lug has a pair of downwardly converging exterior sides sized to wedge into one of the hatch frame notches. Each hatch frame notch has a pair of downwardly converging interior sides, each having an outwardly angled exterior edge while each tub lug has a pair downwardly converging exterior sides each having an outwardly angled exterior edge sized to wedge into a hatch frame notch so that a hatch tub is removably mounted in a marine vessel hatch. The hatch frame has a hatch door hingedly attached thereto for closing the hatch with or without the storage tub therein.