Assignee: Harken, Inc.

Location: Pewaukee, WI
No. of patents: 31

Number	Title	Issue Date
7988132	Block with improved central mounting A block with a rotating sheave mounted between a pair of side plates. Between the side plates may be a post about which a mounting loop may be mounted. The post is configured to permit the loop to be attached or detached from the block. ...	08/02/2011
7980780	Quick action turnbuckle An adjuster for use with a sailboat which permits rapid movement of a movable end with respect to an opposite fixed end. A threaded shaft extends through the adjuster and a rotating barrel in fixed to a nut engaging the shaft. A lock is positioned about a lower body...	07/19/2011
7673851	Block with improved central mounting A block with a rotating sheave mounted between a pair of side plates. Captured between the side plates may be a post about which a mounting loop may be mounted. The post is removable from the between the side plates to permit the loop to be attached or detached from...	03/09/2010
7494110	Arrangement for lifting and lowering objects An arrangement for raising and lowering relative light weight objects from a ground position to a high storage position. A bracket is secured to the high storage position and supports a vertical rotatable shaft, with a pair of horizontal reels and an automatic lock ...	02/24/2009
7293517	Method and apparatus for compacting sail cars The invention relates to method and apparatus for compactly stacking a sail having a tack, clew and head, the sail being mounted to batten or sail cars above a boom when the sail is stowed, furled or fully lowered. More specifically, most of the cars are compacted o...	11/13/2007
6722303	Fairlead and cam assembly A fairlead and cam cleat assembly for a sailing vessel is provided, in which the fairlead at the entrance of the cam cleat is of inverted U-shape, allowing a line passing through the cam clear to be bent at severe angles relative to center line or normal entrance of...	04/20/2004
6685171	Lifting device A lifting device comprises a rotatable pawl with a pawl arm held in a pawl sleeve. The pawl has an open position in which a rope may be freely adjusted in tightening or loosening directions, and a closed position in which the rope is lockably engaged betw...	02/03/2004
6520103	Boom vang for sailing vessel A boom vang system for sailboats has a rear facing pivotal cam cleat arm hingedly connected to a rigid tang on the sailboat mast. When the boom vang rotates off the centerline of the boat, as for instance will occur when the boat is sailing downwind and t...	02/18/2003
6361022	Lifting device A lifting device for lifting elongate objects such as watercraft from trailers or the like to overhead storage positions has a plurality of individual lines passing over a plurality of pulleys generally configured in a rectangular shape and supported from...	03/26/2002
6318285	Furling sail system A furling sail system for rotatably dispensing and retrieving a furling sail has a rotating swivel and drum for attachment to the sail. Each of the drum and swivel have a body with a perimeter, with cordage attachment means on the body for attaching the f...	11/20/2001
6305669	Bearing block tether using fine lines A bearing block has a head, a central hub, bearing means facilitating rotation of the sheave about the central hub. The block further has locking means for removably locking a length of high strength, fibrous material, such as cord, to the block for tethe...	10/23/2001
6254274	Roller bearing device A traveler comprises a track with two lateral side grooves and a top surface, and a car slideably held on the track. The car has first and second lateral side portions, with bearing means in each portion for engaging respective of the track side grooves. ...	07/03/2001
6247847	Flexible bearing cage A flexible bearing retaining cage has a flexible spine with bearing retaining means for rotatably retaining bearings. A flexible bearing cage assembly comprises a flexible bearing retaining cage with bearings rotatably retained. The flexible cage of the i...	06/19/2001
6241440	Device for tethering a fitting to a flat surface A tethering device for anchoring a tether has a cup rotatably held within a cylinder, with the cylinder mounted approximately flush in a flat surface, such as a boat deck. A loop of fibrous material, such a strap, has a first end removably anchored in the...	06/05/2001
6158373	Traveler car with recirculating ball bearings and bearing retainer A traveler comprises a car slideably held on a track, and is useful for applications including trimming a sailboat mast or sail. The car has two side portions each with a race with an open portion. Ball bearings are contained in each race that are rotatab...	12/12/2000
5984278	Swivel post latch system for bearing block A bearing block has a head containing a totatably mounted post to enable attachment of the block on a support. A manually operated latch mechanism is mounted in the head, and the latch may be moved into engagement with one or more recesses in the post to ...	11/16/1999
5927691	Four speed sailboat winch having separate second gear The features of a known auto shifting three speed winch having a drive shaft and rotatable drum are used to provide first, third and fourth gears upon reversal of rotation of the drive shaft. The third and fourth gears use common gearing and the final gea...	07/27/1999
5829736	Winch having drum of two diameters for alternative engagement by a line at two speeds A sailboat winch used for trimming lines of alternate sails, such as a jib and a spinnaker, has a drum with upper and lower drum portions of different diameters separated by a continuous radially projecting lip. The upper drum portion has a first diameter...	11/03/1998
5540171	Slider assembly for sailing vessel A slider assembly useful as a working part on a sailing vessel includes a track and a slider mounted on the track. The slider includes a pair of U-shaped end pieces held in a spaced relationship by side pins and a central pin. Tubular bushings are mounted...	07/30/1996
5489254	Thrust bearing feature for side plate of bearing block A bearing block has a sheave rotatably mounted between a pair of side plates. A plurality of exposed ball bearings are mounted in the side plates for bearing engagement with the sides of the sheave. The ball bearings can circulate and are either provided ...	02/06/1996
5485800	Resilient stand-up device for bearing block A resilient stand up device for a pulley or block includes a hollow rigid fitting between the block and a support. The fitting has open jaws at each end, with one set of jaws disposed at right angles to the other, with attachment pins extending between th...	01/23/1996
5463970	Furling foil for sailing vessel A furling foil rotatably mounted on a stay of a sailing vessel carries the forward edge of the sail, and the foil is rotated to furl the sail. The foil is of composite construction and has an inner reinforcing braided layer of high tensile filaments exten...	11/07/1995
5462368	Ball bearing block having self-contained bearings A bearing block has a central hub with a pair of circular grooves near the sides of the hub. The grooves define an inner ball race and also define an outer ball bearing retaining lip. A ring-shaped sheave is disposed around the hub and has a pair of reces...	10/31/1995
5449154	Bearing assembly for rotary support of a line The outer race of a roller bearing sheave is omitted so that the bearings are in direct engagement with a line. A retainer for the ends of the bearings is provided to allow the bearings to rotate and recirculate around an inner race. The rollers deflect p...	09/12/1995
5370366	Backwind sailboat winch A backwind feature is provided on a line-receiving winch and is particularly suitable for use on high capacity sailboat winches. The winch includes a main drive train to drive the drum of the winch in a winding direction and to prevent rotation in the opp...	12/06/1994
5255573	Winch handle A manually operated winch crank is characterized by a crank arm having a shaft extending at right angles to the arm, a tubular handle rotatably mounted on the shaft, and a reduced height knob rotatably mounted above the tubular handle. The tubular handle ...	10/26/1993
5249543	Snatch block A snatch block which may be opened to receive a line has a sheave assembly and a pair of sideplates on the sides of the sheave assembly, as well as a head connecting the sideplates. One of the sideplates and sheave is hinged from the head and can pivot to...	10/05/1993
5181477	Boom for sailing vessel A boom for a sailing vessel has a forked forward portion hinged to the mast at spaced locations to permit rotation or swinging of the boom only in a horizontal plane....	01/26/1993
5156378	Bearing block having high strength to weight ratio A bearing block having an inner and outer race is provided with an enlarged axial opening through the unloaded portion of the inner race and is selectively reinforced in the region carrying the load, in order to provide an improved strength to weight rati...	10/20/1992
5149059	Low profile multiple bearing block fairlead A low profile fairlead has a plurality of blocks support in a spaced relation along the arc of a circle to simulate a single bearing block of larger diameter....	09/22/1992
5044294	Mast track system for sailing vessel A traveler track is provided for supporting the sail of a sailboat, and is itself supported by a plurality of lugs which are received in a rearwardly facing groove in the mast, which would normally receive the boltrope of the sail. The lugs are slidable i...	09/03/1991

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Assignee: Harken, Inc.