A retractable deck pin for cooperating with a boat line includes a cylindrical pin body which is axially movable in a pin guidance by an underdeck positioned actuator. A seal element is positioned in a clearance for sealing the pin body with respect to the pin guidance. The retractable deck pin is improved by providing a reservoir filled with an oil volume. The reservoir which is positioned under the pin guidance has a reservoir opening for receiving the pin body in the contained liquid volume. An air inlet is provided with a non-return air valve. When moving the pin base into the liquid volume, an air volume above the liquid volume will get pressurised. An airflow escapes from the reservoir via the clearance to the ambient. The air flow through the clearance counteracts a possible incoming flow of leaking.

A retractable deck pin for cooperating with a boat line includes a cylindrical pin body which is axially movable in a pin guidance by an underdeck positioned actuator. A seal element is positioned in a clearance for sealing the pin body with respect to the pin guidance. The retractable deck pin is improved by providing a reservoir filled with an oil volume. The reservoir which is positioned under the pin guidance has a reservoir opening for receiving the pin body in the contained liquid volume. An air inlet is provided with a non-return air valve. When moving the pin base into the liquid volume, an air volume above the liquid volume will get pressurised. An airflow escapes from the reservoir via the clearance to the ambient. The air flow through the clearance counteracts a possible incoming flow of leaking.

A system for docking a boat on a body of water includes a pole or shaft mounted with respect to the bed of the body of water and extending above the surface of the body of water. A locking spacer is slidably connected to the pole. A member has an outer surface and an inner surface defining a cavity that is open at two ends. The member also defines a slot extending from the outer surface to the inner surface. The member is mounted to a boat. The system enables the rapid and easy mooring of the boat by maneuvering the boat so that the pole passes through the slot and into the cavity. The locking spacer is then slid along the pole until it enters the cavity, thereby locking the member with respect to the pole.

A system for docking a boat on a body of water includes a pole or shaft mounted with respect to the bed of the body of water and extending above the surface of the body of water. A locking spacer is slidably connected to the pole. A member has an outer surface and an inner surface defining a cavity that is open at two ends. The member also defines a slot extending from the outer surface to the inner surface. The member is mounted to a boat. The system enables the rapid and easy mooring of the boat by maneuvering the boat so that the pole passes through the slot and into the cavity. The locking spacer is then slid along the pole until it enters the cavity, thereby locking the member with respect to the pole.

An in-situ bollard tester. The in-situ bollard tester may comprise: a frame, cable, and tensioner. The frame is preferably adapted to mount onto a pier or wharf and around a bollard to provide structural support for the cable and tensioner. The frame may comprise a rectangular frame, pair of hanging columns, pair of jacks and pair of legs. The pair of jacks are coupled near proximal corners of the rectangular frame and are vertically disposed. The hanging columns are coupled near distal corners of the rectangular frame. The pair of legs are coupled at the lower ends of the hanging columns and are disposed in a horizontal manner. The tensioner may be coupled above the rectangular frame. The cable may fasten to the bollard, and the tensioner may apply tension to the cable at various load angles in order to test the integrity of the bollard.

An in-situ bollard tester. The in-situ bollard tester may comprise: a frame, cable, and tensioner. The frame is preferably adapted to mount onto a pier or wharf and around a bollard to provide structural support for the cable and tensioner. The frame may comprise a rectangular frame, pair of hanging columns, pair of jacks and pair of legs. The pair of jacks are coupled near proximal corners of the rectangular frame and are vertically disposed. The hanging columns are coupled near distal corners of the rectangular frame. The pair of legs are coupled at the lower ends of the hanging columns and are disposed in a horizontal manner. The tensioner may be coupled above the rectangular frame. The cable may fasten to the bollard, and the tensioner may apply tension to the cable at various load angles in order to test the integrity of the bollard.

A tube guide assembly for mounting in a rod holder of a vessel. The rod holder has a depth from a cross member to a top surface. The assembly secures a mooring line to the vessel. The assembly includes a tube having a longitudinal axis and a base end dimensioned to be disposed in the rod holder to engage the cross member. The tube has a second end opposite the base end. The second end has a cleat to secure the mooring line. The tube has inverted J-shaped slots opposite one another to receive the cross member therein. A spring-loaded lock assembly is disposed in the tube. The lock assembly has a plunger to press against the cross member and lock the cross member in the J-shaped slots.

A tube guide assembly for mounting in a rod holder of a vessel. The rod holder has a depth from a cross member to a top surface. The assembly secures a mooring line to the vessel. The assembly includes a tube having a longitudinal axis and a base end dimensioned to be disposed in the rod holder to engage the cross member. The tube has a second end opposite the base end. The second end has a cleat to secure the mooring line. The tube has inverted J-shaped slots opposite one another to receive the cross member therein. A spring-loaded lock assembly is disposed in the tube. The lock assembly has a plunger to press against the cross member and lock the cross member in the J-shaped slots.

An in-situ bollard tester. The in-situ bollard tester may comprise: a frame, cable, and tensioner. The frame may mount onto a pier and around a bollard to provide structural support for the cable and tensioner. The frame may comprise a pair of base assemblies and a spreader bar. Each of the base assemblies may comprise a support frame and a cantilever arm, and the spreader bar may be coupled to the pair of base assemblies. A pair of jacks are coupled near proximal corners of the base assemblies. The tensioner may comprise a pair of hydraulic arms having first ends coupled near a proximal end of the base assemblies and a linear crossmember coupled to the second ends of the hydraulic arms. The cable may fasten to the bollard, and the tensioner may apply tension to the cable at various load angles in order to test the integrity of the bollard.

An in-situ bollard tester. The in-situ bollard tester may comprise: a frame, cable, and tensioner. The frame may mount onto a pier and around a bollard to provide structural support for the cable and tensioner. The frame may comprise a pair of base assemblies and a spreader bar. Each of the base assemblies may comprise a support frame and a cantilever arm, and the spreader bar may be coupled to the pair of base assemblies. A pair of jacks are coupled near proximal corners of the base assemblies. The tensioner may comprise a pair of hydraulic arms having first ends coupled near a proximal end of the base assemblies and a linear crossmember coupled to the second ends of the hydraulic arms. The cable may fasten to the bollard, and the tensioner may apply tension to the cable at various load angles in order to test the integrity of the bollard.