Class 73/170.03 - Sailboat (e.g., sailing aid)

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the watercraft is a sailboat.
No. of patents: 32
Last issue date: 01/17/2012

Number	Title	Issue Date
8096176	Bird deterrent for sailboat A bird-deterrent device including a hub with fingers radiating from the hub to prevent or inhibit birds from perching on the top of a sailboat mast. In one embodiment, the hub is mounted to the top of a mast by a fastener which also secures a post of a wind indicato...	01/17/2012
7536906	Tell-tale for boat sail A new and improved tell-tale comprised of a flexible array of light emitting diodes (LED's) that is integrated into a fabric tell-tale strip. A port side tell-tale includes a flexible array of red color emitting LED's and a starboard side tell-tale includes a flexib...	05/26/2009
7197925	Wind indicator Wind indicator apparatus for indicating air flow comprising: a direction pointer, including a vane member, for providing a visible indication of air flow direction; pivoting means including a fixed portion for coupling to a sailing craft and a pivotable portion able...	04/03/2007
7168389	Swiveling banner-carrying apparatus A banner-carrying apparatus which reduces the folding and winding up of the banner or flag about the banner-carrying pole by using a tubular sleeve coaxially, annularly and rotatively mounted about a flag pole shaft. Low friction bearing surfaces allow the sleeve to...	01/30/2007
6698281	Vane designed to get oriented in the ambient air flow axis A vane designed to get oriented in the axis of an ambient airflow. The vane allows for the intake of differential pressure presenting the aerodynamic incidence ଱ of the vane. According to the invention, the differential pressure intake is balanced w...	03/02/2004
5877415	Laminar airflow detector A detector is provided to determine the presence and absence of laminar airflow on the face of an airfoil or sail or surface and to transmit and signal the airflow condition to a user who is at a distance from the sail or surface to thereby allow the user...	03/02/1999
4896534	Float-type flowmeter A float-type flowmeter has a flow detecting surface, such as a fin, for pointing its inlet opening, which receives a portion of the flow to be measured, into the flow. Preferably the flowmeter, its inlet opening, and its fin, are all mounted to rotate as ...	01/30/1990
4886007	Servomechanism for sailboats Apparatus that maintains a sailboat sail in a position where maximum power is derived from the wind. The apparatus includes a wind vane that responds to directional changes in the wind and sends an electrical signal to a motor that adjusts sail-positionin...	12/12/1989
4790255	Wind and boom direction indicating device There is provided a device useful for adjusting the main sail of a sailboat said device being equipped with apparent wind indicating means and color coded means for indicating desirable position for the boom of said main sail; said device being used alone...	12/13/1988
4673924	Maritime wind shift alarm system and method of detecting wind shifts A system is provided for detecting wind shifts on a floating vessel which is anchored. The system has particular applicability to commercial gill net fishing where a net is set for the night and a fishing boat is tied to the downwind end of the net. The s...	06/16/1987
4646567	Wind indicator for sailboat A wind indicator for a sailboat has a wind vane on a vertical shaft which is mechanically coupled with a horizontal shaft turning a pointer. The wind angle relative to the boat is indicated by the pointer on a circular dial. Two windward pointing indicato...	03/03/1987
4597287	Stabilized wind direction indicator A wind direction indicator for a marine craft such as a sailboard has a horizontal spar consisting of a resilient portion connected to a curved plate which may be attached to the mast of the craft, and a rigid portion extending from said resilient portion...	07/01/1986
4522069	Windvane A plexiglass or similar plastic windvane that has beveled peripheral edges or is otherwise provided with surface markings from which light rays impinging thereon exit from the plexiglass causing illumination of the edges or markings, whereby the windvane ...	06/11/1985
4488431	Wind speed and direction indicator and electric current generating means This invention relates to a wind direction indicator spherically rotatable about a liquid supported poly axial magnetic compass. The wind direction indicator determines the wind direction without any pivotal support. The wind direction structure is orient...	12/18/1984
4437425	Air flow direction indicator An airflow direction indicator in accordance with the invention is intended for sailboards, in which the front portion of the sail includes a tunnel which is slipped onto the mast and is rotatable relative thereto when varying the sheeting and curvature o...	03/20/1984
4402220	Wind direction indicator A wind direction indicator for sailing vessels, particularly wind surfers or small yawls uses a weather vane pivoted to one end of an outrigger. The outrigger is to be fitted to the mid-height of the mast in the angle of vision of the yachtsman using a cl...	09/06/1983
4389887	Wind velocity gage for sailboats A wind velocity gage for use on sailboats including a vertical shaft to be mounted on or near the mast head. A vane is pivotally mounted on the end of the shaft and includes a forward small weighted end and a rear vertically oriented fin. A wind velocity ...	06/28/1983
4314477	Sailboat wind direction indicator A wind direction indicator for a sailboat includes a mounting bracket for mounting on the forestay of a sailboat with a support frame extending forward of the mounting bracket and including a generally Y-shaped wire frame with the arms of the Y serving as...	02/09/1982
4283943	Method and apparatus for indicating and adjusting the angular position of a sail Apparatus and method for indicating and adjusting the angle between the horizontal tangent to the luff of a sail and the direction of the apparent wind....	08/18/1981
4227406	Wind direction device A wind direction device for attachment to a boat shroud for indicating the direction of the wind relative to the direction of travel of the boat. The device includes several wraps of adhesive tape around a boat shroud to form an upwardly facing shoulder a...	10/14/1980
4223631	Sailing indicator The sailing indicator assembly is constructed to space the tail from the sail and to maximize the force effect of a light wind to keep a wet tail from sticking to the sail. More particularly, the inner end of the tail is mounted to a spacer member, the in...	09/23/1980
4122710	Course to wind guidance device A guiding device for guiding the helmsman of a sailing vessel in steering a preset course relative to the apparent wind. The device employs a course selector a single setting of which presets the desired course to wind for both the port and starboard tack...	10/31/1978
4080826	Apparent wind indication device A device for mounting on a sailboat to provide a visual indication of the optimum boat-to-wind angle to achieve maximum distance per unit of time to windward. A pivotally mounted wind vane includes a pair of flexible struts extending outwardly at equal an...	03/28/1978
4078425	Wind direction indicator for sailboats The invention relates to a wind direction indicator for sailboats wherein a rotatably mounted permanent magnet connected to the shaft of a weather vane is employed as a pick-up. By means of its magnetic field, it controls, in dependency upon the wind dire...	03/14/1978
4078426	Anemometer An anemometer includes a rotor mounted to spin about a vertical axis in response to wind being directed against it, and a cage having a plurality of circumferentially spaced apart, vertically disposed vanes surrounding the rotor. The vanes deflect the nor...	03/14/1978
4059993	System for monitoring water flow angle relative to a boat keel A sensing vane is placed near the leading edge of the keel of a sailboat where the water flow splits. The vane is deflected away from a "center" position (i.e., a position aligned with the keel) by the water stream as a function of the water flow angle (t...	11/29/1977
4052957	Burgees A burgee, particularly for boats and yachts, and comprising a flag mounted on a frame carried by a staff is enabled to be more sensitive by providing a pivot bearing mounting for the frame on the staff. The pivot is preferably a pointed tip to the staff b...	10/11/1977
4027533	Angle of attack indicating device An angle of attack indicating device for use in indicating the sail trim of a sail boat or the angle of attack of an airfoil in order that the sail or the airfoil may be optimized. The device of the present invention employs wind operated sensing vanes co...	06/07/1977
4024833	Burgees A burgee, particularly for boats and yachts, comprising a frame supported by pivot bearing means on the upper end of a staff has a detachable flag. The flag may be fitted on a frame, for example a wire frame, adapted to be coupled to the frame supported o...	05/24/1977
4022150	Sailboat steering indicator system An electrical signal in accordance with the direction of the wind relative to the heading of a sailboat is generated by means of a wind direction sensor and a transducer. This signal is fed to a summing device where it is summed in opposite polarity relat...	05/10/1977
3934129	Apparent wind direction indicator A system for evaluating the performance of a sailing boat wherein average boat speed, average apparent wind speed and average apparent wind direction are sensed and are utilized to determine the performance characteristics of sailing boats. The system inc...	01/20/1976

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Class 73/170.03 - Sailboat (e.g., sailing aid)