A marine vessel comprises at least one hull stabilized by at least one pair of outboard sponsons and propelled by propulsion means carried by the sponsons or hull. One aspect of the invention is shown in FIG. 7, where a marine vessel (20) is provided with first second pairs of outboard sponsons (230, 231), with the first pair (230) disposed forwardly of the second pair (231). The sponsons (230) of the first pair are disposed at a higher level than the sponsons (231) of the second pair. At the lo...

A container to receive an infuser of the kind formed from a wall structure of plastic material incorporating a mesh, and a lid for covering the container when the infuser is contained therein, said container having side walling incorporating support means which is arranged to support the infuser while spaced from said side walling so as to enable air to flow round the infuser and the lid having at least one opening to permit air to flow within the container to promote drying.

An insulated vessel (10, 100, 130) is provided which is adapted to receive a low or high temperature material to be insulated from the environment. The vessel comprises inner and outer membranes (20, 110, 140) and (30, 120, 150) and an outer casing (40, 170). The inner membrane defines an inner cavity for receiving the low or high temperature material and has a first portion which defines an entrance into the inner membrane. The outer membrane encases the inner membrane such that a space is defi...

Disclosed is a closure means for a pressure vessel, said pressure vessel comprising a body portion and a lid portion, the closure means comprising: securing means attached to the lid portion for releasably securing the body and lid portions together to form a subtantially gastight enclosure, the securing means permitting a limited degree of movement between the body and lid portions from a sealing position to a venting position when the pressure within the vessel exceeds the external pressure by...

The inflatable bladder (50) contained hull (30) of an aquatic vessel (20) that can be used on a floating swimming pool or spa, a raft or boat, a containment boom or the like. Connectors (33) and retaining lines (34) interconnect the free ends of hull components (31) and accessories (40). The system may be disassembled, turned inside out, and/or upside down and reassembled if desired.

A process vessel has side walls of concrete which are lined with a gas and moisture-impermeable material to prevent: a) the egress of gas from the interior of the vessel; and b) ingress of moisture through the concrete into the interior of the vessel.

A vessel made up of interlockable sections, the aftermost one being a propulsion unit housing machinery, crew accommodation, the bridge and other offices and being independently navigable. A cargo-carrying section can be removably attached to the forward end of the propulsion unit and when attached mating surfaces of tapered shoulders and recesses are locked in wedged together positions. Power operated devices are provided for drawing the propulsion unit and the cargo-carrying section together a...

A sacrificial seagoing vessel comprises an automatic navigation system which is operable remotely to maintain the sacrificial vessel in a predetermined orientation and position with respect to a predetermined conventional vessel which is to be safeguarded from enemy projectiles, the sacrificial vessel being attractive to projectiles. The attraction may be provided by enhanced radar signature or by emission of signals at a substantially greater level occurring from a conventional seagoing vessel.

A vessel includes two or more barge form hulls disposed apart vertically one above the other and multiple spaced connecting structural members rigidly inter-connecting the hulls with a gap therebetween. The upper hull provides the necessary buoyancy to support the vessel with the other hull or hulls flooded with sea water and/or other liquids. Waves acting on the vessel may cause a water flow in the space between the hulls and the wave energy may be at least partially dissipated by the action of...

An inflatable pressure vessel (1), which may be a decompression chamber for treating divers, has a flexible elongate casing (2) made of a silicone elastomer material reinforced with windings of reinforcing filaments and one or more removable end members (7,8) to provide access. An end member may be a rigid plate which seals against a frame (3,4) defining the entrance under internal vessel pressure. A transparent plastic plate gives illumination and allows inspection of a diver under treatment in...