The present invention relates to mooring and docking systems for watercraft and more particularly, relates to mooring and docking systems using magnetic couplings for watercraft.
To load and unload watercraft the vessels may need to be positioned alongside a dock. In addition, when not in use watercraft may need to be stored in a stationary location alongside a dock or other stationary mooring faculty. Many watercrafts have limited maneuverability. When in open water the reduced maneuverability does not present a problem. However, when a watercraft is preparing to dock alongside a dock, the limited maneuverability may make it difficult for the captain of the watercraft to position the watercraft next to the dock. The captain may not position the watercraft close enough to the dock, preventing the watercraft from being able to dock. The captain may steer the watercraft too close to the dock causing the watercraft to hit the dock, which may result in damage to either the watercraft or the dock.
When the watercraft is docked, wind, waves and tides may cause the watercraft to rub against and hit the dock. Bumpers are often used to reduce damage caused by the motion of the boat hitting against the dock. This continuous rubbing or hitting often causes damage to the hull of the watercraft. Even when bumpers are properly placed between the watercraft and dock, the contact may still rub the paint and outer surface of the hull of the watercraft.
Docking and mooring facilities may also need a system for activation of the docking system. The facility may need an automated system for determining when a watercraft is docking. The system may need to provide the captain with a method of communicating to the docking facility and activating the docking system without placing additional burdens on the facility personnel. The system may also need to keep records of who is using the docking facilities. The records may be used to determine if the watercraft is an authorized user or may be used to debit an account associated with the watercraft for use of the docking system.
Accordingly, a need exists for a device, method, and system for docking and mooring a watercraft. The attributes may need to provide a docking and mooring system that prevents damage due to contact between the dock and watercraft during storage of the watercraft alongside the dock. The attributes also may need to provide docking facilities with the ability to account for docking facility use and prevent unauthorized use without placing additional demands on facility personnel.
These and other features and advantages of the present invention will be better understood by reading the following detailed description, taken together with the drawings wherein:
Referring to
The electromagnetic generators 106 may be constructed in a variety of manners. One exemplary method of construction has a ferrous core with multiple coils of wire surrounding the core. When power is supplied to the wire, a magnetic field is generated from the core. When power is not supplied to the wire, little to no magnetic field is generated. The electromagnetic generators 106 may be covered with a protective shell or coating to prevent damage to the watercraft hull or penetration of water and other environmental contaminates into the electromagnetic generators 106. The electromagnetic generators may also be an integral part of dockside mounted docking pads.
A controller (not shown) is used to selectively provide power to the electromagnetic generators 106. The controller may provide power by activating a relay switch or using a combination of other communication devices to cause the controller to activate and provide power. The controller may also adjust the strength of the magnetic field as the watercraft approaches the dock 102. For example, the magnetic field generated may be decreased as a sensor (not shown) determines the approach of the watercraft. Greater detail regarding various methods and devices used to activate the controller will be described later herein.
A second magnetic device 108 is coupled to the watercraft 104. The magnetic device 108 may be a ferrous material. The ferrous material may be the hull of the watercraft 104 or located within the hull of the watercraft 104. In another exemplary method of construction the ferrous material may also be coupled to the outside of the watercraft 104. In yet another exemplary method of construction the magnetic device 108 may also be an electromagnetic generator.
The watercraft 104 pulls up along side the dock 102 under the power of the watercraft's engines. The watercraft 104 is positioned a safe distance from the dock 102 allowing the captain adequate maneuverability of the watercraft 104 without jeopardizing hitting the watercraft 104 against the dock 102. The captain communicates to the docking facility 100 to activate the docking system, as will be described later in greater detail herein. The controller supplies power to the electromagnetic generators 106 coupled to the dock 102.
The electromagnetic generators 106 produce a magnetic field that attracts the magnetic device 108 coupled to the watercraft 104. The magnetic device 108 and watercraft 104 are pulled towards the dock 102. The controller may regulate the magnetic field produced by the magnetic device 108. For example, as the watercraft 104 approaches the dock 102 the electromagnetic generator 106 or the magnetic device 108 may reduce the strength of the field to reduce the impact of the watercraft 104 from hitting the dock 102. Additional proximity sensors may be used to allow the controller to determine distances of separation between the watercraft 104 and the dock 102. The controller may then adjust the strength of the magnetic field or reverse the polarity based on the proximity of the watercraft 104. Once the watercraft 104 reaches the dock 102, the electromagnetic generators 106 may maintain the magnetic field to maintain the watercraft's position. The watercraft 104 may also be coupled to the dock 102 using convention mechanical couplings, for example, ropes, elastic cords, or other coupling devices. According to one exemplary embodiment, once the watercraft 104 is coupled to the dock 102 with conventional coupling devices the electromagnetic generator 106 may be deactivated.
The docking facility 100 provides a docking system that reduces the demands of the captain to precisely position the watercraft 104 next to the dock 102. This reduces the risk of hitting the watercraft 104 against the dock 102 and causing damage to the dock 102, watercraft 104, or passengers and cargo onboard the watercraft 104.
Referring to
The electromagnetic generators 106b are activated to produce a repulsive force pushing the magnetic device 108b coupled to the watercraft 104b away from the electromagnetic generators 106b of the dock 102b. The mechanical couplings hold the watercraft 104b near the dock 102b and prevent the watercraft 104b from being completely pushed away from the dock 102b. The repulsive forces prevent the wind, waves, and tidal flows from causing the watercraft 104b to hit and rub against the dock 102b.
The electromagnetic generators on the watercraft in conjunction with the electromagnetic generators or electromagnetic docking pads on the dock can be activated in any combination of strengths and polarities. For instance, the watercraft electromagnet may be polarized in a positive field while the dock electromagnets are activated in a negative field or vise versa to attract the two devices. In another instance both the watercraft electromagnet and the dock electromagnet can be activated in like fields to repel one another. Both the dock electromagnet and the watercraft electromagnet may be activated at maximum or minimum attractive or repulsive field modes or any combination thereof.
Referring to
In addition to positioning the electromagnetic generator 206 in a vertical direction, the electromagnetic generator 206 may pivot about a pivot axis 210 to allow the electromagnetic generator 206 to be positioned in the direction of the magnetic device 208 of the watercraft 204. Similarly, the pull of the electromagnetic generator 206 to the watercraft 204 may also be used to position the electromagnetic generator 206 in a direction of the watercraft 204 about the pivot axis 210. Another system may also use a ballast system or motors and sensors to maintain the electromagnetic generator 206 about the pivot axis 210.
Referring to
Once the unloading and loading of the watercraft is complete, the captain of the watercraft may disembark from the dock. The captain communicates to the system and deactivates the system (block 310). The watercraft may move away from the dock under the vessel's own propulsion system. The electromagnetic generator may also be used to generate repulsive forces to push the watercraft away from the dock to aid in the disembarking of the watercraft. The watercraft is safely removed from the docking facility (block 312) and the docking process is complete (Block 314).
Referring to
Referring to
The activation process is not limited to the above process. Other devices and systems may be used to activate the docking process. For example, a Radio Frequency Identification tag (RFID) may be used to initiate and activate the docking/mooring process. In this example, the RFID tag may be used to identify the account and an additional radio frequency may be used to activate and deactivate the docking/mooring system. The captain may transmit the additional radio frequency by pressing a keypad on the watercraft. Other wireless communication devices in addition to radio frequency may also be used to activate and deactivate the docking/mooring process.
Referring to
The electromagnetic generators 606 may be constructed in a variety of manners as previously discussed with regard to the first exemplary embodiment. The electromagnetic generators may be an integral part of docking pads that are removably coupled to the dock 602. The electromagnetic generators 106 may be coupled to the dock 602 via extensions that allow the electromagnetic generators 606 to be moved from a retrieving position shown in
The extension is not limited to the cable 612 and the spring 614. The extension may be a variety of other devices that may position the electromagnetic generators 606 next to the second magnet 608 of the watercraft 604. For example, the extension may be a telescoping rod. The telescoping rod may be hinged and have a position system in a controller (not shown) that automatically locates the second magnet 608 and moves the electromagnetic generators 606 next to the second magnet 608. The extension may also incorporate floating or ballasting devices that may be used to position the electromagnetic generators 606 within the water.
The controller is used to selectively provide power to the electromagnetic generators 606 as previously discussed with regard to the first exemplary embodiment. The watercraft 604 pulls up along side the dock 602 under the power of the watercraft's engines. The watercraft 604 is positioned a safe distance from the dock 602 allowing the captain adequate maneuverability of the watercraft 604 without jeopardizing hitting the watercraft 604 against the dock 602. The captain communicates to the docking facility 600 to activate the docking system. The controller supplies power to the electromagnetic generators 606 coupled to the dock 602.
The controller retracts the extension from a receiving position to a docking position. The magnetic device 608 and watercraft 604 are pulled towards the dock 602. Additional proximity sensors may be used to allow the controller to determine distances of separation or location of the watercraft 604. The controller may then adjust the extension to position the electromagnetic generators 606 next to the watercraft 604. Once the watercraft 604 reaches the dock 602, the electromagnetic generators 606 may maintain the magnetic field to maintain the watercraft's position. The watercraft 604 may also be coupled to the dock 602 using conventional mechanical couplings, for example, ropes, elastic cords, or other coupling devices. According to one exemplary embodiment, once the watercraft 604 is coupled to the dock 602 with conventional coupling devices the electromagnetic generator 606 may be deactivated.
The docking facility 600 provides a docking system that reduces the demands of the captain to precisely position the watercraft 604 next to the dock 602. This reduces the risk of hitting the watercraft 104 against the dock 602 and causing damage to the dock 602, watercraft 604, or passengers and cargo onboard the watercraft 604. The docking facility 600 is not limited to the configuration illustrated in the exemplary embodiment, for example, the electromagnetic generators may be coupled to the watercraft 604 and the second magnet 608 may be coupled to the dock 602. In another example, the extensions couple the second magnet 608 to the watercraft 604. In this example, the extension may be used to position the second magnet 608 next to the electromagnetic generators 606 coupled directly to the dock 602.
Referring to
Modifications and substitutions by one of ordinary skill in the art are considered to be within the scope of the present invention, which is not to be limited except by the following claims.
This application is related to U.S. Patent Application No. 60/727,295 filed Oct. 17, 2005 entitled “Watercraft Mooring and Docking System”, which is incorporated fully herein by reference.
Number | Date | Country | |
---|---|---|---|
60727295 | Oct 2005 | US |