Abstract:
A pressurized gas supply system includes a pressurized container which expands and contracts. The container includes a one-piece liner molded from a polymer which is reinforced by a high tensile fiber such as KEVLARnull. A valve is molded into the liner, and a regulator is connected to the valve. A hose, having a conserver positioned therealong, extends between the regulator and a fitting allowing a user to inhale gas from the container. The container is carried in a carrying bag, which can be in the form of a carrying case, a purse, or a back-pack.
Abstract:
The invention relates to a fibre-reinforced pressure vessel (1, 6) comprising a rigid gas- or fluid-tight body (2, 7, 13, 19) overwound with fibre filaments (3, 10, 11, 18), whereby the fibre filaments are wound such that at least a number of fibre filaments can freely move in respect of one another and when the pressure vessel is under internal pressure the fibre filaments are strained exactly in their longitudinal direction. The invention also relates to a method of manufacturing a fibre-reinforced pressure vessel whereby no matrix material (for example, resin) is used so that at least a number of fibre filaments would be incorporated in a matrix for that section of the pressure vessel in which the fibre filaments can freely move in respect of one another.
Abstract:
A fitting with a dual locking swaging mechanism includes a projection to be inserted into the open end of an elastomeric tube. A ferrule is connected at one end thereof to a body portion of the fitting and is swaged over the tube to hold the tube onto the projection inserted into the tube. The tube is thereby held to the fitting by both frictional engagement of the tube with the projection and the ferrule and by the connection of the ferrule with the main body of the fitting.
Abstract:
A sealing plate for sealing a cartridge containing a liquified gas under pressure and having a neck with an opening with a syphon tube thereof extending from the neck into the cartridge has mounted on a side surface thereof a powdered metal cylindrical filter having a blind bore with open end closed by the plate. An integral annulus centrally disposed on the plate and projecting outwardly from a side surface of the plate mounts the filter in fixed assembly with the sealing plate. The filter is press-fitted into the annulus with its open end against the plate so that an annulus inner cylindrical surface is circumferentially disposed about the open end of the cylinder. The plate is mounted in use on the neck closing it. The cylindrical filter and the annulus around it extend into the neck and the marginal peripheral surface portion of the plate around the annulus overlies the neck closing its opening and is welded thereto to effect a seal. The sealing plate is made of a pierceable material which is pierced, when the cartridge is mounted for use in a system, to provide communication between the opening formed and the closed bore of the cylindrical filter so that a filtered liquidified gas outflow from the filter is established.
Abstract:
Each of insulation panels which form together an insulation layer is fixed on a tank body at one point at the center of the panel. An insulation material having elasticity at low temperature is filled in a joint between the adjacent panels. A heat insulator having elasticity at a given temperature and high heat insulating property is airtightly fitted in the joint. A balance hole for preventing pressure change is provided in the insulation layer.
Abstract:
A liner for a primary vessel comprises a plurality of attached, corrugated continuous sheets of membrane-type material. Each sheet has a herringbone pattern of repetitive parallelogram-like elements. Each parallelogram-like element is bounded at its four sides by bends to adjacent parallelogram-like elements, each sheet having minimally developed corrugations. The continuous sheets are therefore supportable by bearing walls of the primary vessel and may follow any deflections of these walls under conditions of structural stress and thermal deformation.
Abstract:
A liquid and gas tank is provided for operation, in particular, in satellites subject to low acceleration, that utilizes a separation force produced by surface tension to collect liquid in a privileged zone of the tank without allowing gas to escape via the privileged zone. The tank includes an outer first shell element having a curvilinear shape, and having at one end a surface portion S of radius of curvature r which is concave on a side that contacts liquid. The tank also includes an inner second shell element fixed to the first element, being convex in shape on a side that contacts liquid, and curvilinear in shape and including a surface portion S' having a part which is slightly inclined relative to the surface portion S in the privileged zone forming a narrowest zone between the surface portions S and S', the surface portion S' having a radius of curvature r' which is less than the radius of curvature r, wherein liquid is urged into the narrowest zone due to a capillary effect. The tank further includes at least one liquid drawing-off element opening out into the narrowest zone lying between the surface portions S and S'.
Abstract:
A cryogenic tank comprising an innermost fluid-confining wall forming a primary barrier made form relatively thin, flexible, impervious, sheet-like laminated building material comprising at least three continuous overlying layers of yielding material adapted to withstand very severe cold conditions, bonded together and consisting of at least one first mechanically strong supporting outer layer, at least one impervious film-like intermediate layer and at least one second inner lining layer providing at least a mechanical and at least temporary protection.
Abstract:
A support system is provided for a tank for the storage of fluid media under pressure which tank has its top, bottom and side walls each made up of a series of parallel outwardly convex lobes. The bottom supports of the support system comprise A-frame cradles that are secured to external structure, and have traylike saddles at their apices in which rest blocks of load-bearing heat-insulating material shaped at their tops to fit into interlobe nodal recesses of the tank bottom. When each heat-insulating block is in correct positional relationship with the respective tank bottom recess, the tray in which it rests is filled with synthetic plastics material which sets to anchor the block in place. The support system also comprises top and bottom locating keys which likewise are located at interlobe nodes of the tank top and bottom walls, each consisting of an extension piece or tongue projecting from an interlobe node to engage external support structure. There may be top locating keys at every interlobe node of the tank top but only one central key at the tank bottom.
Abstract:
924,804. Storing liquefied gas. CONCH INTERNATIONAL METHANE Ltd. June 20, 1961, No. 22194/61. Class 8(2). A cylindrical or prismatic tank for liquefied gas, e.g. natural gas, nitrogen or helium, comprises a load-bearing floor and a loadbearing wall or walls, respectively, formed of thermal insulating material 1, the floor and wall or walls being covered with dimpled, thin metal sheets 3 having plain edges 4 which are secured, e.g. by welding or screwing, to metal members 2, the latter being spaced from each other and fixed, e.g. by screws or nails, to the material 1 in the corner between the wall and the floor or the corners between the walls and between the latter and the floor; the edges 4 of the metal sheets are slotted at a series of points 5 corresponding to the spaces between the members 2, and along the or each corner there is a gutter-like strip of metal 6 sealed, e.g. by welding, to the adjacent edges 4. The thermal insulating material 1 may be balsa wood, preferably faced with plywood, or quippo, cork, foamed plastics, glass, asbestos, jute fibres, mineral wool or cellular gypsum. The metal of the sheets 3 is preferably stainless steel or an aluminium alloy. The. members 2 may be fixed to the material 1 by screws passing through slotted holes in the members 2 to allow for expansion and contraction. The strips of metal 6 are preferably transversly corrugated at 7 and in the case of a prismatic tank each corner between two of the walls and the floor is completed by a sheet metal member sealed, e.g. by welding, to the adjacent ends of the associated three gutter-like strips 6 to make a fluid tight corner, the transverse corrugations 7 in the strips 6 may be extended into the dimpled sheets 3, after the strips have been fixed in position, by a forming-in-place process such as vacuum forming while heating. Spaces between the dimpled sheets 3 and the insulating material 1 may be filled with a resilient filler. The metal sheets 1 may form a barrier round another vessel for the liquefied gas, to prevent escape of the gas in case of rupture of that vessel. Specifications 919,587, 924,801, 924,802 and 924,803 are referred to.