An anchor having release capabilities including a cylindrical housing having a plurality of equidistantly spaced vertical slots therein. A central post slidably extends through the cylindrical housing. Free ends of the central post have cable eyes disposed thereon. A plurality of pivoting prongs extend inwardly of the plurality of vertical slots of the cylindrical housing for pivotal securement to the central post. A main line has a free end secured to one of the cable eyes of the central post. ...

An anti-fouling anchor for boats, and the like and comprising a shank member having an axially outwardly extending stud member at one end thereof and a transversely extending rod member journalled at the opposite end thereof, a spring urged release rod assembly secured to the transversely extending rod member and releasably engageable with stud member and normally engaged with the stud member for utilization of the anchor in the usual manner for securing the boat in a preselected position in a b...

This anchor includes a hollow spring-loaded shank having an adjustably connected line attachment bolt at one end and a pair of collapsible anchor flukes pivotally connected at the other end. The spring-loading mechanism includes an interior compression spring engaging a plunger at the anchor end of the shank. The anchor flukes are in cam engagement with the plunger, and include a common pivot pin about which the anchor flukes are rotated from an open to a collapsed position under the application...

A tubular shank structure the anchor includes an elongate arm control member which moves lengthwise within a main body of the shank structure. Pivotally mounted arm members may be maintained collapsed along side the anchor shank structure or may be operatively held perpendicular to the shank structure by the arm control member. Upward positioning of the arm control member causes same to disengage the arm member ends to permit the arm members to rotate downwardly relative the shank structure so a...

A temperature compensated lead screw for use in a device, such as a vacuum capacitor, in which an electrical parameter is controlled by position of a shaft operating through a vacuum-sealing flexible metal bellows into an evacuated envelope. The shaft position is, in turn, the result of the lead screw acting against a threaded member. The lead screw assembly is composed of an externally threaded sleeve slip-fit onto a mandrel and welded, or other wise tightly bonded, at a single discrete locatio...

A hollow elongated cylinder has a cup with a central opening at one end and is open at the other. A plurality of equidistantly spaced like slots are cut into the cylinder wall and extend for a short distance in the axial direction from the other end toward the cap. An elongated bar parallel to the axis of the cylinder is secured to the inner wall of the cylinder, one end of the bar being adjacent the cap, the other end of the bar being adjacent the slots. A threaded bolt is aligned with the axis...

A shank-mounted reverse pull slide and slide stop to effect release of a fouled anchor. The device can be readily mounted on a substantially solid, conventional twin fluke anchor shank without altering the structural integrity of the shank. The slide housing has interior wall surfaces which are shaped to provide a shank contact portion and a plurality of passages between the shank surface and the slide housing walls to prevent sand and other marine grit from jamming or restricting movement of th...

The present invention relates a releasable boat anchor. The releasable boat anchor has an adjustable spring stopper to allow for selection of the release force needed to operate its unlock mechanism. The releasable boat anchor has notched flukes rotatably attached to an outer cylinder. The edge of an inner cylinder engages the notched flukes prior to release. The notched flukes will rotate when the inner cylinder is pulled out of its notches once the release force needed to pull on its inner cyl...

An anchor having an elongated hollow body with a plurality of flukes pivoted to the lower end thereof. A stem inside the body has an upper end projecting through the upper end of the body connected to an anchor line. A connecting member couples a slideable plug held within the body to the stem for movement between a first position, where the plug holds the flukes in an extended operative position, and a second position, where the flukes are released from engagement with a surface. The connecting...

An anchor with collapsible flukes is provided with a spring tensioned latching mechanism which normally prevents the flukes from moving from a latched position to a collapsed position. The latching mechanism is unlatched and the flukes collapsed by a releasing mechanism including a compression spring and a firing pin. Tension on an anchor line draws the firing pin against the compression spring and, upon a sudden release of the tension in the anchor line, the firing pin is driven against the lat...