摘要:
This new art offers an improvement to conventional surfboards as well as any previous motorized jet surfboards. This application includes an electric powered surfboard equipped with drive units that unfold out onto the surfboard's bottom surface to aggressively power it forward. Once a wave is caught the drive units can retract back up into the surfboard's body as the power is shut off by the surfer. Then, instantly the flush fitting glide doors close, allowing the surfboard's bottom to return to a planning surface with no protrusions, except for fins, and no water filled jet tubes left open to detract from the surfboard's critical gliding ability when surfing waves.Also, there's a crowned deck shape that allows thin rail sensitivity for turning performance and a motor battery arrangement that provides mass centralization of weight. All this, combined with several wireless control means define this new fine handling motorized surfboard.
摘要:
An Auto-Pilot for steering a craft automatically in water or air, and including a flux gate arrangement mounted to the craft in a predetermined horizontal directional orientation, and a resolver having a first section with coils energized by signals from the flux gate to produce a magnetic field dependent upon the heading of the craft relative to the earth''s magnetic field, and a second section having a coil which produces an output signal representing the position of that coil relative to the field produced by the first mentioned coils. One of the resolver sections can be rotated relative to the other section to any selected setting representing a desired course which the craft is to follow, and the output of the resolver is then utilized to automatically steer the craft toward that course. In a second mode of operation the output from the resolver may be disconnected from the steering mechanism and be utilized in a non-steering manner to automatically return the rotatable section of the resolver to a position corresponding to the field which is generated in the resolver by the flux gate, and thereby cause the rotatable section of the resolver to follow the earth''s magnetic field and function as a compass repeater.
摘要:
The monitoring system includes a central unit for sending and receiving wireless information concerning events and conditions on a boat or components arranged on the boat. A portable remote manoeuvre unit is equipped to send wireless instructions to the central unit and to receive wireless information from the central unit. The portable manoeuvering unit includes a manoeuvering device and a gear changing device for sending wireless instructions to change the gears of the boat, to adjust the throttle controls of the boat and to control its steering.
摘要:
When a person 55 having a portable transmitter 41 hanging from his neck happens to fall into water, the self-contained sensor detects invasion of water into the transmitter 41 to send a water-detection signal to the on board transmitter-and-receiver system 42. The engine drive control 45 is connected to the on board transmitter-and-receiver system 42A, controlling the engine 47 so as to make the boat 46 retrace the way to the accidental point at which the transmitter wearer 55 fell into water, so that the boat 46 may stop close to him on water. The transmitter-and-receiver system 42 is equipped with a GSP system, so that it may inform selected people of predetermined addresses of the time and the place at which the person fell into water via a selected local station 202 by wireless. A life-saving article such as a life belt is made to fall onto water, and a rope ladder may be hang on the side of the boat 46 to permit the person to return to the boat by climbing the rope ladder.
摘要:
An electro-mechanical steering device for boats, comprising a push-pull cable (11) coupled between a steering gear (3) and a steering arm (12). The cable jacket is connected with play to the gear housing. The steering gear is coupled to a command value sender (8), the signal of which is compared in an electronics unit (10) with a signal from an actual value sensor (15) (rudder indicator) coupled to the steering arm. An electrical servo motor (14) is coupled to the steering arm and is controlled by the electronics unit in response to the difference between the command value and the actual value signals.
摘要:
The sailboat control device disclosed herein comprises one actuated by the pulling of a pin positioned therein, whose removal therefrom permits a spring controlled switch to be closed so that the position of the boat rudder is determined by the maneuvering of a wind vane on the boat. A line connected at one end to said pin and at the other end to the sailor on board causes the pin to be pulled or removed from the said device if and when the sailor should fall overboard. Movement of the wind vane and accompanying rotation of the vertical shaft to which it is attached effects movement of the rudder to make the boat travel in a direction not too far from where the sailor has fallen overboard.
摘要:
In a small boat emergency stop apparatus having an operator's cockpit and a passenger seat installed spaced apart from the cockpit, there are provided with an operator transmitter wearable by the operator to transmit a radio-wave signal of a predetermined strength, a passenger transmitters wearable by the passenger to transmit a radio-wave signal of the same predetermined strength and a receiver installed at a location closer to the cockpit than the passenger seat to receives the radio-wave signals transmitted by the operator and passenger transmitters successively. It is identified which of the operator and the passenger is a wearer of the transmitter and is then discriminated whether strength of the radio-wave signal transmitted from the identified wearer is smaller than a predetermined value. When it is, it is discriminated that emergency occurred in the wearer and an emergency action of engine stopping or engine speed reducing is performed.
摘要:
This new art offers an improvement to conventional surfboards as well as any previous motorized jet surfboards. This application includes an electric powered surfboard equipped with high volume jet drive units that power it forward and significantly improve a surfer's wave fielding and catching ability. Once a wave is caught the drive unit can be shut off by the surfer. Then instantly, two flush fitting glide doors close the jet tube intake openings allowing the surfboard's bottom to return to a planning surface with no protrusions, except for fins, and no water filled jet tubes left open to detract from the surfboard's critical gliding ability when surfing waves. Also, there's a crowned deck shape that allows thin rail sensitivity for turning performance and a motor battery arrangement that provides mass centralization of weight. All this, combined with several wireless control means define this new fine handling motorized surfboard.
摘要:
A man-portable and autonomous signal-emitting device, in particular for a man in sea includes a container (10) provided with elements (12) for fixing to a carrier, an insert (14) provided with at least one function for the power supply thereof (16), elements (18) for actuating the insert and removable mechanical members (20) for initiating the actuating elements (18).
摘要:
A detection system and method for a marine vessel uses an infrared sensor to detect the presence of a human being or mammal in a target area near the propulsor. A visible light detector is used to determine whether or not a signal received from the infrared sensor is caused by reflected sunlight and not the actual presence of a human being or mammal. By detecting visible light, false triggering of the system in response to infrared radiation received from sunlight can be significantly reduced. Embodiments of the system can monitor gear position and engine speed in combination with signals received from the infrared sensor and visible light sensors to determine an appropriate action to take in response to the presence of infrared radiation above a preselected threshold.