Abstract: A land anchor is disclosed for pulling an immobilized vehicle out of the mud or snow. The land anchor includes a pull bar which is reversibly connectable or linkable to a bucket by passing the pull bar through a slot in the bucket. The bucket portion of the anchor includes a blade which can be driven into the ground and then removed from the ground once the vehicle has been freed. A connecting end of the pull bar engages the bucket and prevents the pull bar from passing completely through the slot, and can include lateral wings for added strength. The land anchor can be positioned, anchored, and operated by a single person with assistance from a winch and cable assembly to move the immobilized vehicle to a solid area of ground.

Abstract: An apparatus includes an elongated, hollow member; a cap; and a pair of arms. The elongated, hollow member has a first closed end and a second open end, wherein the second open end includes a plurality of slots therein. The cap is configured for detachable attachment to the second open end. The pair of arms is configured to fit into the elongated, hollow member in a first configuration. The pair of arms is configured for insertion into the plurality of slots in a second configuration, wherein one of the pair of arms is oriented substantially orthogonally to the other of the pair of arms. A method of using an anchor includes inserting a pair of arms into the elongated, hollow member; and closing the second open end with a cap configured for detachable attachment to the second open end.

Abstract: The present invention discloses a bionic high holding power anchor, which includes an anchor rod, a suspension clasp coupled with one end of the anchor rod and an anchor fluke hinged with the other end of the anchor rod, wherein a plurality of fluke heads arranged at equal intervals are extended from a front end of the anchor fluke, fin-like streamlined balance wings are arranged at two sides of the anchor fluke; the fluke head is in a shape of triangle-like taper containing a plane side wall and two curved side walls, the plane side wall is an isosceles triangle, the two curved side walls are smooth curved surfaces, and the two smooth curved surfaces are symmetrical around a normal plane of the plane side wall.

Abstract: A satellite antenna is provided. The satellite antenna includes a first member, a second member and a connecting unit. A first opening is formed on the first member. A second opening is formed on the second member. The connecting unit fixes the first member to the second member. The connecting unit includes a connection post, an abutting element and a rotatable stopper. The connection post includes a first end and a second end. The abutting element pivots on the first end of the connection post. The rotatable stopper pivots on the second end of the connection post, wherein in a fixing state, the connection post passes through the first opening and the second opening, the abutting element pulls the rotatable stopper to tightly abut a first surface of the first member, and the first member is fixed to the second member.

Abstract: A collapsible anchor including a first shank, a second shank configured to be detachably coupled to the first shank, and at least one fluke configured to be hingedly coupled to the first and second shanks. The fluke is configured to move between a stowed position and a deployed position. The collapsible anchor also includes a first vane configured to be hingedly coupled to the first shank and a second vane configured to be hingedly coupled to the second shank. The collapsible anchor also includes at least one stop configured to limit rotation of the first and second vanes relative to the first and second shanks. When the first and second vanes and the at least one fluke are hingedly coupled to the first and second shanks, the first vane extends in a first direction and the second vane extends in a second direction different than the first direction.

Abstract: A system, method and apparatus providing uninterrupted cleaning of first and second parts of a deployed marine seismic streamer cable using one cleaner apparatus, the first and second parts located to respective sides of a bird attached to the streamer cable. The system comprises a connecting apparatus for connecting by a web or rung the bird to the streamer cable, and the cleaner apparatus provided with a slit open over the full length of the cleaner and adapted to let the web or rung pass from end to end of the cleaner, whereby the cleaner is allowed to pass from the first part to the second part without interrupting its cleaning action.

Abstract: A detachable boat anchor comprises of a first plate having a housing on the bottom central surface and a second plate having a housing on the top central surface. The two plates are connected by a central shank by means of a leaf spring with engagement pin. The shank has two open ends with radial holes formed therethrough proximate to the open ends. The housing has an open end and radial holes formed therethrough and is shaped to receive the shank in a mating relationship to provide a snug fit such that when the radial holes of the shank and the radial holes of the housing are aligned, the engagement pin protrudes from the radial holes to prevent disengagement.

Abstract: An anchor for mooring of objects in a marine environment for floating vessels, floating, grounded structures etc, which is resistant to hooking or snagging on underwater objects, such as pipelines The anchor comprises a fluke and a shank, and embeds itself into the seafloor when tension is applied to a line connected to the anchor In either a side or top profile view, the shape of the anchor presents a profile which does not have a hook shape, and therefore tends to nde over and slide off of, rather than hook onto, underwater obstructions that the anchor may be dragged over Embodiments disclosed include an anchor having a shank rigidly fixed to the fluke, and one in which the shank is rotatably connected to the fluke An elastic member, which may be a coil spring, biases the shank toward a relatively closed position with respect to the fluke.

Abstract: A multifunction anchor comprises an anchor shank to selectively work with one of a dual-fin fluke set, a four-leaf fluke set, and the spear fluke set. A user can choose one of the fluke sets that suits current anchoring conditions to assemble with the anchor shank to anchor a vessel.

Abstract: Anchor comprising a fluke and a shank which at a first end is attached to the fluke and a second end that is situated opposite to the first end, is provided with means for attachments of the anchor to a penetration line or anchor line, in which the shank comprises two shank legs, which at the second end are connected to each other using a pin, in which the portion of the pin situated within the shank legs also serves as connection means for an end link or end shackle of the penetration line or anchor line.

Abstract: Anchor comprising a fluke and a shank which at a first end is attached to the fluke and a second end that is situated opposite to the first end, is provided with means for attachments of the anchor to a penetration line or anchor line, in which the shank comprises two shank legs, which at the second end are connected to each other using a pin, in which the portion of the pin situated within the shank legs also serves as connection means for an end link or end shackle of the penetration line or anchor line.

Abstract: A take apart anchor has a shank with an eye opening at its upper end adapted for connecting to a shackle and a pivot opening at its lower end adapted for receiving a mechanical fastener for attaching the shank to a stock. The stock has two wings extending away from each other at an angle, the upper surface of the wings including a plurality of bosses, and having an opening through which the lower end of the shank extends. A plurality of fluke plates is connected to the stock by being removably engaged with the plurality of bosses, each fluke plate of the plurality having a base and at least one fluke extending from the base. A plurality of grappling or finger members extends upwardly from the stock and from each individual fluke plate of the plurality of fluke plates, each individual finger member of the plurality being detachably connected by a removable mechanical fastener.

Abstract: A modular anchor with a compressible spring member that permits its easy retrieval from the floor onto which the anchor became stuck. This retrieval is accomplished by merely pulling the anchor cable, the integrity of the cable being preserved as a consequence of the yielding of a spring member that is part of the modular anchor. The spring member compresses when it is subjected to sufficient pressure. The modular anchor may be disassembled to be carried in a bag with other elements useful for fastening a boat to shore. The anchor preferably has a fluke in the form of a plow or plowshare fluke.

Abstract: Method and apparatus for the anchoring of a floating object by an elongated shank having an attached fluke that extends along the vicinity of the shank, with an edge of the fluke extending to a tip from a constraint movably mounted on the shank, with the fluke apertured and proportioned to limit fouling by a rode attached to the shank and facilitate attachment for storage.

Abstract: A collapsible boat anchor (12) comprising four side panels (13, 13a, 13b and 13c) each hingeably connected to the next as to form a square. To the forward and rearward side panels (13 and 13b) respectively are affixed a plurality of flukes (14 through 20a) arranged in upper and lower configuration as to allow the anchor (12) to set on whichever side it may fall. Moveable attached to the inside of the anchor at forward side panel (13) and right side panel (13c) is a center stabilizing bar (30). The center stabilizing bar (30) secures the anchor in an open and locked position while engaged, but facilitates collapse of the anchor for storage while disengaged. To provide a tie-off location for an anchor line, a lead arm (28) is pivotably affixed to the anchor at a anchor pull ring (26).

Abstract: Method and apparatus for the anchoring of a floating object by an elongated shank having an attached fluke that extends along the vicinity of the shank, with an edge of the fluke extending to a tip from a constraint movably mounted on the shank, with the fluke apertured and proportioned to limit fouling by a rode attached to the shank and facilitate attachment for storage.

Abstract: An assembleable anchor-type landscaping device which is lightweight, durable, and capable of being moved and shipped with minimal expense. The anchor device comprises a detachable connected ring, a hollow shank which is formed in multiple portions which are removably connected, a hollow removable stock, hollow and removable arms, and detachable fluke members (optionally hollow). The anchor may be variably filled with a ballast material to achieve appropriate landscaping weight.

Abstract: A grapnel anchor having an elongated shank with a fixed arm at its lower end and several movable arms mounted on the elongated shank. Each movable arm is mounted on the shank by a polygonal hole in the center of the arm. The upper end of the shank is enlarged to prevent removal of the movable arms from the anchor's shank. The upper portion of the shank beneath its enlarged upper end is a cylinder sized to permit each of the movable arms to rotate about the upper cylindrical portion of the shank. The outer surface of the lower portion of the shank between its cylindrical portion and the anchor's fixed arm consists of several identical elongated rectangles which in cross section forms a regular polygon slightly larger than the polygonal hole in the center of the movable arms.

Abstract: Described is a twin-fluke anchor, capable of disassembly, for mooring a marine vessel in waters having generally sandy or muddy underwater bottoms to prevent the vessel from drifting with the wind or tide. The anchor is capable of assembly in two different configurations to vary the shank/fluke angle to optimize the holding power of the anchor in accordance with the firmness of the underwater bottom surface.

Abstract: A boat anchor with a fixed pair of flukes on the end of the shank. For the purpose of illustration, the shank is square on the lower end and around on the opposite end. A pair of movable flukes are connected with means defining a central opening which, for the purpose of illustration, is square and received on the shank to fix a position of the movable flukes relative to the fixed flukes when in the lower position, and rotatable on the round portion of the shank to selectively and alternatively position the fixed and movable flukes. Accordingly, the fixed and movable flukes are in a right-angle position when in operation and can be adjusted to a parallel position when in storage.

Abstract: A folding anchor, having a shank formed in two pieces and pivotally joined together with a spring biased locking device. The fluke assemblies are pivotally connected via a coupling assembly at the lower end of the shank, the coupling assembly including first and second generally C-shaped retaining members for pivotal attachment of one fluke assembly to each, the first retaining member being secured to the lower shank, with the second retaining member pivotally connected to the first for pivoting about an axis generally perpendicular to the axis of pivoting of the flukes. the two retaining members are so formed, and joined, to permit pivoting of the fluke assemblies between folded and unfolded positions, whereby the two flukes may be rotated toward each other into proximate facing relation, or away from each other into alignment.

Abstract: A combined buoy and anchor device for fishermen comprises a buoy body with a hollow interior and having its upper and closeable by a lid, a reel rotatably mounted in the buoy body and to which is secured the inner end of a cable, and an anchor connected to an outer end of the cable. The anchor includes a shank and a plate detachable from the shank, the plate and the lid having interengaging formations so that the plate can be retained in place on the lid. The buoy preferably includes a generally cylindrical upper portion surrounding the hollow interior, and a reel-containing lower portion separated from the upper portion by a wall. The hollow interior of the buoy can be used for holding bait or tackle.

Abstract: A lightweight aluminum anchor for marine vessels having removable flukes loosely coupled to an improved monolithic crown structure that has the same holding power as heavier, though similarly sized, steel anchors, yet is easily retrieved when it is no longer necessary to secure the vessel. The monolithic crown structure has oppositely disposed angled side walls integrally merging into the crown plates, resulting in the crown plates having a thicker and stronger center portion so that operational stresses of the anchor may be incurred without deforming the crown structure. Inset in each side wall is a fluke coupling member to which the flukes are attached that reduces the interior volume of the crown structure. The reduction of interior volume reduces the possible accumulation of debris, thereby making retrieval of the anchor much easier. Since all components of the anchor are made from extruded aluminum, no welding is required to assemble the anchor.

Abstract: An improved marine anchor that may be quickly assembled or disassembled from its component parts. The compactness of these parts allows for very convenient storage of the anchor when it is disassembled. When assembled, the anchor provides great strength and holding ability. Because the anchor is very quickly assembled, it is ideal for emergency situations. Since the flukes are removable, the user can select various numbers and shapes, interchanging them for various sea-bed conditions as appropriate.

Abstract: A folding anchor having a shank formed in two pieces and joined together with a keyhole fitting, and, upon pivoting the upper shank abuttingly overlies the lower shank. The fluke assemblies are pivotally connected via a coupling assembly at the lower end of the shank, the coupling assembly including a retaining member for pivotal coupling to the fluke assemblies and a slide block member having a passage for receiving the retaining member therein, displacement of one relative to the other enabling pivoting of the fluke assemblies between folded and unfolded positions, this being accomplished by 90 degree pivoting of the fluke assemblies about first axes generally parallel to the longitudinal axis of the shank, whereby the two flukes may be rotated toward each other into proximate facing relation, or away from each other into alignment.

Abstract: An improved marine anchor that may be quickly assembled or disassembled from its component parts without the use of tools. The compactness of these parts allows for more convenient storage of the anchor components than is available with other anchors. When assembled, the anchor provides great strength and holding ability. Because this anchor is quickly and easily assembled without tools, it is ideal for emergency situations. Since the flukes are removeable, the user can interchange flukes selecting them for their appropriateness to the sea-bed conditions in which he is anchoring.

Abstract: A collapsible boat anchor comprising a fixed grapple and a movable grapple, the fixed grapple including a shaft having the movable grapple thereon. The shaft also includes a releasable lock adapted to unlock the movable grapple so that it lies parallel to the fixed grapple allowing storage of the anchor. The lock, in its locked position, locks the movable grapple in a fixed position whereby it extends transverse to the fixed grapple allowing the grapples to act as an anchor. The anchor also includes a tethering member selectively adapted to pull the anchor into an anchoring position or pull the anchor in a reverse direction to release the same.

Abstract: The present invention relates in one aspect to an anchor comprising a shank portion and a stock portion, the stock portion extending through a first aperture in the shank portion and extending laterally of the shank portion when in use, but being demountable so as to be removable from the first aperture in the shank entirely or so as to be moveable in the first aperture to a position where it can be orientated substantially in alignment with the shank, wherein the stock is fitted with a keeper which in the operative position of the stock, is engageable with a second aperture in the shank of the stock spaced from the first aperture, said keeper being provided with means to enable it to be retained in the second aperture.

Abstract: A boat anchor having elongated flat flukes clustered on the shank in variable arrangements and a bail secured at each end of the shank for attaching the line to the boat.

Abstract: A shank is provided for an anchor, which is in the form of a longitudinally extending double-plate girder with a transverse element joining the double plates. In accordance with the present invention, the transverse element is substantially spaced from the cable attachment end of the shank and is orientated with a positive attack angle so that the element can contribute to the burial force developed by the anchor. The above double-plate girder shank on the one hand provides increased resistance to bending moments in vertical and sideways directions and on the other hand enables satisfactory soil penetration by the shank due to the open construction. A plurality of the above transverse elements are preferably provided and form with the double plates passages diverging aft. The double-plate shank can be removably attached to the fluke.

Abstract: A dynamic anchor composed of two laterally positioned anchor flukes for facile penetration into the bottom structure of a water course, and a retractor to withdraw the flukes from the bottom. The retractor is mounted for relative reciprocal movement along the longitudinal axis of between the flukes. Two anchor cables are employed. The first cable is connected directly to the fluke plate and is used to anchor the craft. By pulling the first cable, the fluke plate is pulled forward to dig in and hold the craft. The second cable is reaved around a pivot carried by the retractor and is secured to the fluke plate. Thus when the second cable is pulled in, there is created a force to pull the retractor and fluke plate in opposite directions in order to cause the flukes to be removed from the water course bottom.

Abstract: A boat or ship anchor having a crown portion with a spaced apart pair of flukes projecting forwardly therefrom in the same plane, and a pair of tail plates extending rearwardly therefrom, the tail plates being splayed to present a large frontal area. Intermediate the flukes and extending through the crown is an aperture. A shank element, adapted for attachment to the anchor line at its forward end, extends through the aperture and is dimensioned for sliding relation in the aperture intermediate the flukes. A projection in the form of a minor fluke on the tail end of the shank element limits the sliding motion of the shank through the aperture in a first direction while permitting limited rotational or angular movement thereof relative to the flukes and crown at least in a plane perpendicular to the plane of the flukes.

Abstract: An anchor adapted to develop high holding power in both hard and soft anchoring ground due to flaps which are retracted within the fluke area in hard ground and extended outside the fluke area in soft ground.

Abstract: An anchor in which the flukes pivot on the shank about independent axes wh converge toward the anchor chain end of the shank. Lugs at the base of shank provide for mounting the pivots. The anchor is reversible and has support plates on either side of its base which act as stops to limit the extent that the plate-like flukes can close toward each other as the anchor is set.

Abstract: A boat anchor which includes a hollow shank having a line attachment eye at one end and protruding fins at the other end. Anchor flukes are pivoted to the fins for movement between three positions, namely: an operative position extending generally laterally away from the shank, an anchor-releasing position in which the anchor flukes extend longitudinally of the shank and away from the line attachment eye, and a storage position in which the anchor flukes extend alongside the shank towards the eye; shear pins carried by the fins are broken by the anchor flukes under the application of a predetermined load to permit pivotal movement of the anchor flukes into their anchor-releasing position. A spring-loaded plunger resiliently maintains the anchor flukes in either one of their storage and operative positions. A stop bolt can be adjusted to block the plunger into a position in which it positively locks the flukes in their operative position, whereby anchor-releasing is no longer possible.

Abstract: A collapsible grapple comprises a pair of selectively assembleable members. The first member includes a pair of elongated shanks or side elements confluent at their upper ends to form a single part and defining between them an elongate slot. The second member similarly comprises a pair of elongated shank or side elements confluent at their upper ends to form a single part and defining between them an elongate slot. The side elements of the second member converge below their upper ends to form a first loop, then part and converge again below the first loop to form a second loop between the first and second convergences. The lower ends of the side elements of both members extend away from the elongated slot and have pointed ends to define a pair of hooks lying in substantially the same plane as the side elements.

Abstract: An anchor has a shank at whose crown end is provided a pair of main flukes defining a fluke plane. A stock is provided on the shank toward the ring end thereof and has a pair of arms extending oppositely from the shank and lying generally in a stock plane perpendicular to the fluke plane. A secondary fluke is pivotal on each of these arms between a pair of extreme positions forming an acute angle with the stock plane. In a central position the secondary flukes lie in the stock plane. In use the secondary flukes dig in first so as to pull the anchor downwardly and cause the main flukes to dig in, giving excellent grab.

Abstract: An exchangeable anchor assembly comprising a free end adapted to be connected to a line, with two parallel crown plates disposed at opposite ends of the stem and sandwiching the stem therebetween. Carried between the crown plates are a pair of stop-limit elements to limit the extent of angular rotation of the stem between the stop-limit elements relative to the crown plates. A cross bar is provided for supporting the crown plates in a fixed position thereto and for carrying two or more combined fluke units having a sleeve connection. A stabilizer unit is provided which includes a pair of angularly displaced wing elements connected with each crown plate. Lock straps are provided to hold the entire unit on the cross bar and to permit relative movement of the stem about the cross bar with such movement limited by the stop-limit elements connected between the crown plates.

Abstract: An improved high efficiency mooring anchor is light-weight and when opera in tandem provides holding capacity equal to or greater than twice the holding capacity of a single anchor. The shank is designed to hold at least 21/2 times the anchor capacity. Hollow streamline flukes are used and stoppers are mounted on the palms at a maximum distance from the trunion located at the apex of the anchor crown.