655results about "Non-magnetic metal hulls" patented technology

A composite aluminium panel comprising two parallel plates and / or sheets secured to the peaks and troughs of a corrugated aluminium stiffener sheet between the parallel plates and / or sheets, wherein the corrugated aluminium stiffener sheet is made from an aluminium alloy rolled sheet of composition (in weight percent): Mg 1.5-6.0, Mn 0.3-1.4, Zn 0.4-5.0, Fe up to 0.5, Si up to 0.5, Zr up to 0.30; optionally one or more of Cr 0.05-0.3, Ti 0.01-0.20, V 0.05-0.25, Ag 0.05-0.40, and Cu up to 0.40; and other elements up to 0.05 each, 0.15 total, with a balance of Al; and having in an H-condition or in an O-condition a ratio of PS / UTS in the range of 0.4 to 0.9 and having good roll formability.

Sports board (15) comprising an elongated expanded closed-cell polyolefin foam layer (16) having a foam thickness and opposed surfaces (18, 19), a first polyolefin sheet layer (23) having a thickness less than the foam thickness and having an inner surface (25) and an outer surface (24), an intermediate metallocene-based polyolefin layer (20) having an inner surface (22) and an outer surface (21) and a thickness less than the foam thickness, the intermediate layer bonded on its inner surface to the foam layer and bonded on its outer surface to the inner surface of the first layer. The intermediate layer may comprise an ethylene-alpha olefin copolymer and may comprise a copolymer of ethylene and octene.

An ice composite body (10) has an inner ice core (11) and a protective outer armour shell (12). The outer armour shell (12) consists of a base section (13), side sections (14) and a separate top section (15), which is free to move vertically between the side sections (14). The inner ice core (11) is maintained in a frozen condition in use by refrigeration pipes (21), which are located at various levels therethrough. The inner ice core (11) is built up from thin layers of ice which are frozen one after the other. Following the freezing of each layer of ice the layer is rolled using a roller apparatus which provides a roller pressure in the range of 3.5 to 8 Newtons / mm<2>. The ice composite body (10) can be used in warm or cool waters for applications such as bridges, breakwaters, causeways, pontoons, artificial islands, dams, tidal barrages, wave power barrages, harbour walls, wind power farms or aircraft runways.

The present document describes a dock unit attachable to another dock unit with a fastener for forming a floating dock. The dock unit comprises a floating body having a mating surface and an attachment adapted to receive the fastener. Thereby attaching the floating body is able to be attached to the other dock unit. The dock unit further comprises a cover for covering the mating surface, the cover having a contact surface adapted to contact the fastener. In use, the contact surface is positioned proximate the attachment so that, when the attachment receives the fastener, the contact surface is contacted by the fastener, thereby limiting the movement of the cover with respect to the floating body.

A protection apparatus protects a harbor or an area in a body of water or adjacent to a body of water. The protection apparatus floats on the body of water, and includes a plurality of barrier units positioned side-by-side, each of the barrier units includes a composite-based durable barrier structure. The barrier structure is configured to hold a net in place in order to protect an area in the body of water or abutting the body of water from waterborne craft. The protection apparatus also includes connectors respectively provided between adjacently-positioned ones of the barrier units. Each of the connectors includes a tensile member and a dampening member for handling forces applied to the protection barrier and for maintaining the integrity of the protection barrier.

An inflator device including a housing defining a storage chamber and a supply of gas generant material disposed within the storage chamber. The inflator device includes an initiator assembly having an initiator in actuating communication with the supply of gas generant material. A moisture barrier member is disposed between the initiator assembly and the supply of gas generant material. The moisture barrier member acts to prevent moisture transmission from the initiator assembly to the supply of gas generant material. Upon actuation of the initiator, however, the moisture barrier member ruptures to permit reaction initiating communication between the initiator and at least a portion of the supply of gas generant material contained within the inflator device.

A mold and construction method for forming aquatic sports boards is provided. The method and molds provide skin and interior core structures made shape-adjustable by a pre-molded perimeter rail. Division(s) in the structural exterior skin allow the skin core to be trimmed and bonded to a variety of convex, shape-defining core structures to produce a plurality of different shapes. A reusable shape-defining mold allows the board structure to be modified in shape. The mold is reversible and male / female configurations produce convex, shape-defining board substrates for a wide array of custom designs.

A corrosion resistant prestressed float unit including a buoyant core encased within a polymeric coating, concrete encasing the core and polymeric coating, a corrosion resistant mesh to reinforce the concrete, and a plurality of corrosion resistant pretensioned fiber members extending the entire length of the unit.

A shaped inflatable water sports board is presented. The inflatable water sports board includes an airtight elongated housing having a predetermined shape. An internal structure is contained within the housing for substantially maintaining the predetermined shape when the board is inflated. An inflation valve is provided for inflating the board where when the board is inflated the board is sufficiently rigid to maintain the predetermined shape under the weight of an adult.

The present invention relates to lightweight components of hybrid design, also termed hybrid component or hollow-chamber lightweight component, composed of a parent body which is composed of galvanized iron and which is reinforced by means of thermoplastics and is suitable for the transmission of high mechanical loads.

A multi-purpose catamaran is disclosed in the present invention, comprising hulls and deck, wherein the hulls are two hulls, the central of the deck is arranged a movable deck, a detachable crane is set over the movable deck for hanging a fishing net or a fishing cage. The catamaran according invention can be easily disassembly and assembly, and expediently be carried and used. The fishing net or the fishing cage can be immerged in water for transiting live fish carried in it, can conveniently transfer to the deep water region for cultivating or to the shallow water region to disembark, removing the hoop can easily hoist it to the dock and can be easily transferred to a truck. The present invention has multi-purpose, except for using to retract and place fishing cage, to transfer aquatic products or personnel, or be as small-sized tow net, also can be used for selling, fishing etc. The present invention manufacturing method is simple, and can easily manufacture the catamaran without a model, suitable for fisherfolks to manufacture the catamaran by themselves, and the catamaran has lower cost.