An exercise machine is described that incorporates a double retractable resistance band system for rowing exercises and that includes a multi-purpose, morphable swinging seat assembly that applies to convertible exercise machines and rowing boats. The double retractable rowing system is detachably integrated into a base plate (inclined planar board) of the exercise machine. The base plate consists of a platform set at an angle consistent with the foot-placements of sit-down rowing machines and rowing shells together with an integral set of quick-release slots located above and to the outside of the toes of the foot placement positions. The multi-purpose, morphable swinging seat assembly provides an improved method/structural assembly for seat-based rowing machines, convertible/multi-purpose exercise machines and an improved architecture for boat-based rowing systems.

The invention relates to a center-axis oarlock and methods of providing constant gearing throughout the arc of an oar in a boat or shell.

The invention relates to a center-axis oarlock and methods of providing constant gearing throughout the arc of an oar in a boat or shell.

The invention relates to a center-axis oarlock and methods of providing constant gearing throughout the arc of an oar in a boat or shell.

The invention relates to a center-axis oarlock and methods of providing constant gearing throughout the arc of an oar in a boat or shell.

A standup forward facing rowing watercraft is disclosed. The craft includes a hull having first and second opposed ends; a deck affixed to the hull, the deck including a surface for supporting a rider who may face in the direction of the movement of the watercraft; and an outrigger attached to the deck, the outrigger including a pivot point that extends outwardly from the deck, the pivot point being capable of accepting an oar. The oar is capable of rotating in the pivot point so as to allow a rider to employ a j-stroke to provide forward course correction when powering the watercraft with one oar. The outrigger can be adapted to include a second pivot point extending outwardly from the deck, the second pivot point being capable of accepting a second oar. The outrigger may preferably be adapted for longitudinal movement in relation to the deck of the watercraft.

A standup forward facing rowing watercraft is disclosed. The craft includes a hull having first and second opposed ends; a deck affixed to the hull, the deck including a surface for supporting a rider who may face in the direction of the movement of the watercraft; and an outrigger attached to the deck, the outrigger including a pivot point that extends outwardly from the deck, the pivot point being capable of accepting an oar. The oar is capable of rotating in the pivot point so as to allow a rider to employ a j-stroke to provide forward course correction when powering the watercraft with one oar. The outrigger can be adapted to include a second pivot point extending outwardly from the deck, the second pivot point being capable of accepting a second oar. The outrigger may preferably be adapted for longitudinal movement in relation to the deck of the watercraft

The present disclosure is a forward-facing rowing mechanical device for on-water paddling transportation equipment. The device is comprised of a novel mechanism which re-diverts effort from legs of the rower to the opposite direction. Therefore, the water propelling direction is changed by the mechanism from backward driving to forward driving. The device includes a backbone; a seat on top of the backbone; a sliding rigger carrying oars; a foot plate for receiving effort from the rower; the effort diverting mechanism for changing driving direction and other necessary peripheral parts.

The present disclosure is a forward-facing rowing mechanical device for on-water paddling transportation equipment. The device is comprised of a novel mechanism which re-diverts effort from legs of the rower to the opposite direction. Therefore, the water propelling direction is changed by the mechanism from backward driving to forward driving. The device includes a backbone; a seat on top of the backbone; a sliding rigger carrying oars; a foot plate for receiving effort from the rower; the effort diverting mechanism for changing driving direction and other necessary peripheral parts.

The Oar Snubber is a device to prevent a rower from falling out of a whitewater rowing vessel when using oars and oar locks. The device prevents an oar shaft from sliding out of its oarlock when extreme angles are encountered in whitewater conditions without limiting the rotational movement of the oar blade. It performs as a rotational retention device with adjustable but limited lateral movement.