Class 114/102.12 - Having means to tension or stretch sail

Subclass of Class 114 - Ships
Definition: Subject matter having apparatus to either (a) pull on, or
No. of patents: 32
Last issue date: 09/21/2010

Number	Title	Issue Date
7798084	Sail and device for rotatably connecting a sail batten to a mast and shaping a luff of the sail In a battened sailboard sail a sail attachment device is attached to the leading edge of the sail and the sail attachment device is connected to a camber-inducer by a line that is acted on by a batten to evenly distribute the batten tension load between the sail and...	09/21/2010
7367277	Pulley A pulley comprising a first pulley wheel and a second pulley wheel and a ratchet acting between the two pulley wheels. When substantially equal force is applied to each pulley wheel in use on a rope tail side causing the pulley wheels to rotate, a low gear ratio is ...	05/06/2008
7090236	Mounting system, sail, steering mechanism and frame for a landsailer A mounting system for a boom (14) of a landsailer (1) includes a resilient flexible member (12), at one end engageable with a rearward portion of the landsailer frame (2) and at the other end with the main sheet (13). A steering me...	08/15/2006
6971430	Cast composite sail and method An apparatus for casting sails comprising a roll stand configured to supply a carrier film. The apparatus contains a support mechanism for the carrier film, and further comprises of a drawing mechanism, a first resin dispenser, a first wiper portion, two yarn applic...	12/06/2005
6718898	Shock absorber sailing system A resilient, shock absorption assembly that mounts between available sail rigging lines and a boat hull. In one assembly, a piston is resiliently biased relative to a housing and contained spring to permit reciprocating movement. Couplers at distal ends of the pisto...	04/13/2004
6431100	Stowable semi-rigid wing sail system A stowable semi rigid airfoil assembly, functions automatically to airflow as a draft adjusting wing sail, or spinnaker sail (19), for use on a mast (17) with a halyard (41) on a wind powered craft. The halyard connected to the heads (83) of port and star...	08/13/2002
6250242	Mainstay rig The mainstay rig is an improved standing rig system for wind-powered vehicles that travel on water, snow, ice, land, or rail. Mainstay rig uses a mast at a rake and uses a vertical mainstay to support mainsail luff, which gives less disturbance of airflow...	06/26/2001
6029594	Sailboard utilizing a dual-hook/loop connector A sailboard utilizing a dual-hook/loop connector is provided for attaching a sail 35 to a sailboard. The sailboard includes a hull, a base unit attached to the hull, a boom attached to the base unit, a sail 35 having a first side 40 and a second side 45 o...	02/29/2000
6006688	Trimming device on the mast top of a windsurfing rig A trimming gear on the mast top of a windsurfing rig having an adjusting element that can be connected to the sail top and fixed relative to the mast is arranged on the mast top. The adjusting element is actuated by a reducing gear and can be displaced in...	12/28/1999
5974999	Mast footing for a windsurfing rig A mast footing having a tensioning device for the leading edge with the components which provide for a reduction of force being attached to the mast footing such that they may be detached. When the sail has been correctly trimmed, i.e., with the leading e...	11/02/1999
5887841	Pole support for use in mast assembly to adjust sail tension A pole support is adapted for use in a mast assembly of a sail craft to selectively adjust tension of a sail. The mast assembly comprises an elongated and rigid tubular member having a central longitudinal axis and a surrounding sidewall defining an inter...	03/30/1999
5839385	Tension applying device A device and methods to incrementally tension a line. The fixed end of the line is secured to a load and the free end is wrapped one-and-a-half times around and terminating between a pair of essentially parallel hooks that have the freedom to converge in ...	11/24/1998
5806451	Rigging, particulary for bicycles Rigging for a land or water vehicle comprises a symmetrical sail and a support therefore which is fitted with a tension member, the frame supporting the sail comprises two vertical uprights assembled together by hinged transverse bars, the rigging becomin...	09/15/1998
5406902	Method and apparatus for optimum sail shaping A boom for a sailboat is controllably flexible to assume a predetermined specific airfoil-derived contour and to impose an aerodynamically efficient shape on the large lower portion of the sail. The boom is formed of five segments connected by four flex j...	04/18/1995
5372080	Motorized sail tensioner for windsurfing A motorized sail tensioner gives the sailor the ability to change the sail shape while sailing, permitting constant adjustment of the sail with only the touch of a switch, to adjust for wind gusts and lulls. It accomplishes this by using a small DC-batter...	12/13/1994
5280763	Apparatus for tensioning a sail A sail tensioning device comprises a handle 70, an arm 73 and a tube 75 which fit together to form the device. The handle is fixed by a strip of webbing which fits in an opening 77 and is stitched to a sail to provide an anchor for the handle. The arm 73 ...	01/25/1994
5239939	Downhaul device A downhaul device for tensioning a sail attached to a mast. The device includes a lever having a cleat at one end. The lever is pivotally attached to a fulcrum which can be removably mounted on the base of the mast. A downhaul sheet attached to the sail i...	08/31/1993
5012755	Apparatus for tensioning a sail A sail for a sailboard is tensioned by use of a batten inserted in a pocket having closed ends. The batten has end cap having a tip on a screw for adjusting the overall length of the batten....	05/07/1991
4977843	Sail tensioning apparatus Self locking apparatus for quick and convenient tensioning of the luff of a sail of a sailboard. In a first embodiment, the tack of the sail is attached to the mastbase close to the hull of the sailboard and the head of the sail is attached to the apparat...	12/18/1990
4774901	Sailboard construction A sailboard is disclosed of the type having a mast pivotally connected to a board, a boom connected at one end to the mast and a sail tensioned by out haul and down haul lines. A down haul tie down mechanism is provided for receiving and securing the down...	10/04/1988
4773345	Force amplifying device for winding a rope under tension A force amplifying device for stretching sail and riggings of a sailing device. The device includes a rope drive for winding up a rope under tension arranged in an elongated housing with the axis of the rope drum directed essentially perpendicular to a lo...	09/27/1988
4696248	Outhaul boom end part for sailboard boom assembly An outhaul boom end part for a sailboard boom assembly is molded integrally from plastic. The outhaul boom end part is generally U-shaped and includes a pair of tubular portions for attachment to the booms and a central portion. The central portion is pro...	09/29/1987
4646670	Sail system for sailboards, and boardsailing apparatus and method An improved single-boom sailing rig for sailboards, and methods of use, are disclosed. A curved, rotatable boom (100) is provided with a forward end set at a slight angle with respect to the chord, with a separately-rotatable camber control (110) located ...	03/03/1987
4625672	Sail tension control mechanism An automated sail tension control system has a cunningham, outhaul, and vang that are automatically tensioned and eased, as the boom is sheeted in and out, respectively, on either side of the sailing vessel. The system comprises: a mast; a boom connected ...	12/02/1986
4561373	Protective caps for sailboat spreaders Protective caps for the ends of sailboat spreaders comprise an arcuate outer surface over which a sail or line may pass without being snagged, an opening sized to snugly fit over the end of the spreader, a slot arrangement to permit the cap to fit over a ...	12/31/1985
4512276	Sailboard rig A sailboard rig has a mast and a boom running aft from the mast for holding and moving the sail. The boom is more specially in the form of a wishbone boom with the sail in its opening. The mast has a mast foot joint such that it may be turned and heeled o...	04/23/1985
4436047	Boom for sailboards The free corner of a sail is secured to a boom containing mechanisms which transform the lateral forces acting on the boom into axial pulling forces on the sail end, thus maintaining the sail constantly in stretched condition, regardless of the elastic de...	03/13/1984
4365570	Sail system for sailboards In accordance with one aspect of the disclosure, the sail portion of a sailboard has upper and lower sections, and the lower edge (foot) of the upper section is lapped relative to the upper edge (head) of the lower section. Apparatus is provided to cause ...	12/28/1982
4311107	Wind propelled apparatus An improved wind-propelled apparatus is disclosed which includes a body mounting a stub mast generally orthogonal thereto. The stub mast is mounted in a well formed on the body and secured by a sleeve, resilient annulus and plug combination. Mounted on th...	01/19/1982
4108100	Rigging base for plural-hull sailing craft and methods for sail control An elongated spar is attached longitudinally to cross-members interconnecting the hulls of plural-hull sailing craft, which spar projects forward to provide points of attachment for the forestays and headsail tacks of the sailing craft, whereby the forces...	08/22/1978
4059063	Roll-furling mainsail In the roll-furling mainsail arrangement disclosed herein, the clew of the sail is trimmed to a boom by means of a car which is freely slidable along the boom. An outhaul line rigged to pull aft from the tip of the boom passes forward through a block on t...	11/22/1977
4051798	Self-locking cable trolley A self-locking cable trolley having a body member which guidingly receives a cable on which the body member rides and a length of working line that permits control of the body member on the cable. Disposed on the body member is a lock device which grips t...	10/04/1977

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Class 114/102.12 - Having means to tension or stretch sail