An oar propulsion system having an oarlock attached to the rear of a standup paddle board (SUP) is used for manual propulsion of the board. The oarlock is structurally attached to the paddle board in a first embodiment, or remains removable in a second embodiment as a conversion kit. The oar shaft has a blade on one end and an exchangeable handle on the other end; the exchangeable handle may be replaced by a waist strap that is tied the paddler’s body for better stability and for steering while paddling.

An oar propulsion system having an oarlock attached to the rear of a standup paddle board (SUP) is used for manual propulsion of the board. The oarlock is structurally attached to the paddle board in a first embodiment, or remains removable in a second embodiment as a conversion kit. The oar shaft has a blade on one end and an exchangeable handle on the other end; the exchangeable handle may be replaced by a waist strap that is tied the paddler’s body for better stability and for steering while paddling.

Hollow rod for propelling a watercraft, such as a stand-up paddleboard, comprising: a rigid hollow rod comprising a center section of reduced diameter cross-section suitable for gripping and manipulating by a user's hands; and two, preferably symmetrical, ends of larger diameter suitable for alternating insertion into the water, allowing the water and air to free-flow through the hollow rod, thus providing a means of propulsion as the user pulls on the inserted portion of the rod along the side of the watercraft.

Hollow rod for propelling a watercraft, such as a stand-up paddleboard, comprising: a rigid hollow rod comprising a center section of reduced diameter cross-section suitable for gripping and manipulating by a user's hands; and two, preferably symmetrical, ends of larger diameter suitable for alternating insertion into the water, allowing the water and air to free-flow through the hollow rod, thus providing a means of propulsion as the user pulls on the inserted portion of the rod along the side of the watercraft.

A watercraft paddle assembly for enhancing comfort while paddling a watercraft includes a paddle that has a handle portion is elongated and a paddle portion. A roller attachment is coupled to the handle portion and the roller attachment is distally positioned with respect to paddle portion of the paddle. The roller attachment has an attached section that is oriented at an angle with a roller section. A roller is rotatably integrated into the roller section of the roller attachment such that the roller can be gripped by the user. The roller is oriented to rotate about an axis that is oriented perpendicular to a lengthwise axis of the paddle to facilitate the user to grip the roller and the handle portion of the paddle in a preferred manner for paddling.

A watercraft paddle assembly for enhancing comfort while paddling a watercraft includes a paddle that has a handle portion is elongated and a paddle portion. A roller attachment is coupled to the handle portion and the roller attachment is distally positioned with respect to paddle portion of the paddle. The roller attachment has an attached section that is oriented at an angle with a roller section. A roller is rotatably integrated into the roller section of the roller attachment such that the roller can be gripped by the user. The roller is oriented to rotate about an axis that is oriented perpendicular to a lengthwise axis of the paddle to facilitate the user to grip the roller and the handle portion of the paddle in a preferred manner for paddling.

The invention relates to an interface for mounting a propulsion mechanism to a watercraft such as a fishing kayak, and to a watercraft comprising such an interface. The interface comprises a first portion including a first plate with a hole sized and shaped for receiving therethrough a portion of the propulsion mechanism, a second portion including a second plate and one channel extending from the second plate, the channel being in registry with the hole of the first portion for therein a portion of the propulsion mechanism. The interface also comprises fastening assemblies for removably fastening the second portion to the first portion of the interface, and a guiding assembly for maintaining the channel of the second portion in registry with the hole of the first portion.

This invention provides paddle handles comprising one or more improvements. For example, the invention provides paddle handles comprising one or more of an arcuate shape, a plurality of surface channels, a surface channel comprising one or more channel branches, and a recessed outer portion.

This invention provides paddle handles comprising one or more improvements. For example, the invention provides paddle handles comprising one or more of an arcuate shape, a plurality of surface channels, a surface channel comprising one or more channel branches, and a recessed outer portion.

A built-in water pumping device of a manual paddle for a boat contains: a shaft, a blade, and a water absorption head. The shaft includes an inner tube and an outer tube movably fitted with the inner tube so as to movably adjust a length of the shaft, thus pumping waters. An adjustable fitting sleeve is configured to lock or unlock the inner tube and the outer tube after adjusting the length of the shaft. The shaft includes a receiving chamber. A water absorption head is fixed on the outer tube and has a passing orifice. The blade includes at least one outlet communicating with the receiving chamber, such that the inner tube is actuated to absorb the waters into the receiving chamber from the passing orifice, and the inner tube is pulled back and forth so that the waters discharge out of the at least one outlet continuously.