Abstract:
A storage tank for a volatile inflammable liquid is provided with an attachment fitting to which an elbow assembly can be attached to support a tapping machine. If the tank primary vessel fails, liquid retained by a secondary containment vessel can be drained out by using the tapping machine to make a hole through the attachment fitting and vessel walls. The attachment fitting is installed, when the tank is built, without impairing the integrity of the primary or secondary vessel walls or providing a hole therein.
Abstract:
A valve guard for a gas tank having a valve at the top of the tank and an apertured flange at the top of the tank which is spaced from the valve. The valve guard comprises a top wall which is adapted to overlie the valve handle and extend over the top of the flange to a point outside of the flange. The valve guard also has a plurality of vertical walls and a bottom wall which has a slot through which the valve stem extends so that the bottom wall is positioned between the valve handle and the valve casing. The forward end of the bottom wall extends through an opening in the flange so that it underlies the forwardly extending portion of the top wall and has an aperture which is aligned with a similar aperture in the top wall for receiving the shackle of a lock.
Abstract:
A coupler adaptor is provided for use in operative association with a container and a valve. The container houses relatively high pressurized carbon dioxide gas for use in carbonating a beverage. The valve is actuated in order to release the gas to an interface passage formed in the coupler adaptor. The coupler adaptor also has a pair of grooves formed on opposite sides of the interface passage for receiving O-rings. The coupler adaptor is also in operative association with a pressure regulator. The pressurized gas enters the pressure regulator from the coupler adaptor interface passage. In one embodiment, the coupler adaptor remains operatively joined to the pressure regulator without retaining structure due to the balanced gas pressure which results because of the O-rings positioned adjacent the coupler adaptor interface passage.
Abstract:
A portable apparatus for mixing and dispensing interactive liquid components (such as epoxy resins and catalysts) which utilizes reciprocable positive displacement pumps which are mechanically connected for simultaneous pumping and filling movement, there being a common single acting selectively adjustable drive for effecting only output pumping movement at preselected output pressure, and the pressure exerted by the liquid components themselves are required to hydraulically effect the filling movement, with the amount of hydraulic filling pressure which can be exerted by one of the component liquids being specifically regulated to be less than that required to effect filling movement. This insures maintenance of precise ratio mixing since the filling movement requires exertion of hydraulic filling pressure by both of the component liquids thus assuring precision ratio pump filling at all parts of the filling cycle independent of varying temperature dependent viscosity of the liquids. The apparatus also features flow control operating on one of the pump output lines which is independent of pressure control of the drive means to provide selectively controllable flow and pressure at the dispensing head. The flow control in one output line controls flow through the other output line by mechanical connection of the pumps which insures output simultaneity of both flow amounts and pressures. The apparatus is for single operator use, wheeled, vertically elongated, tiltable and fits through a standard twenty-two inch diameter manhole. The moving parts are protected from dirty environments by placing same within a separate housing chamber.
Abstract:
A spill condition venting system for a double containment tank includes a control system for controlling, in the event of a spill or an overflow of fluid into the annulus of such double containment tank, the flow of stored fluid into and out of the annulus and for controlling vapor resulting from such spill.
Abstract:
A tank adapted to withstand the horizontal displacement forces and overturning moments which act upon the side walls thereof under earthquake conditions is disclosed. The tank includes a base and cylindrical side walls and a plurality of tendons are provided each of which is attached to the cylindrical side wall at one end and to an anchor fixedly positioned in the concrete base. Each of the tendons is stressed and the stress in the tendon acts downwardly and in some embodiments radially outwardly on the tank wall and substantially restrains the wall from horizontal displacement and protects the side walls from the stresses developed due to the overturning moment. Steel-wall and prestressed concrete wall tanks, particularly for cryogenic liquids, can be adapted according to the invention.A double-wall storage tank for cryogenic liquids is also shown wherein a plurality of stressed tendons are distributed around the inner wall and act outwardly and downwardly on the upper portion of the inner wall and wherein a second plurality of stressed tendons are attached to the upper part of the outer wall and act inwardly and downwardly thereupon.
Abstract:
A tank for the transport or storage of liquified natural gas under pressure is of generally rectangular form and has its side, top and bottom walls each composed of a series of parallel lobes of part-spherical cross-section and of say, 3.0 to 4.0 meters chord distance, each tank end consisting of either a like series of lobes or a mosaic of domes. All the inter-lobe nodes of the top wall of the tank are united to the corresponding nodes of the tank bottom by vertical tie-plates; likewise all the corresponding inter-lobe nodes of the two side walls are united by transverse tie-plates which intersect the vertical tie-plates orthogonally, and thereby define with them a plurality of tunnels of square cross-section.The tie-plates extend longitudinally to unite the end walls of the tank and are welded to one another at all tie-plates inter-sections. The tank is supported on a series of parallel support ribs or frames that connect with the tank along the inter-lobe nodes of the tank bottom.
Abstract:
A pressure relief device for a high pressure gas cylinder of the type that is usable for oxy-fuel torches. The device comprises an aperture in the wall of the cylinder and a eutectic solder filling the aperture. The aperture and plug are also positionable in a substantially planar wall portion that is depressed below the surrounding cylinder wall to protect the plug from dropped objects or inadvertent poking and scraping by the user.
Abstract:
A method of and an arrangement for building a cylindrical hollow structure such as a fluid storage tank, wherein lower and upper structural units to form lowermost and uppermost side wall portions of the hollow structure have helical upper and lower edges, respectively, and the upper structural unit is stepwise rotated about its axis and moved upwardly over the lower structural unit by the use of an open-end chain of link units supporting the upper structural unit in weight transmitting relationship to the lower structural unit through carriers rollably mounted on the helical upper edge of the lower structural unit while applying additional structural members to the upper structural unit for forming part of an intermediate side wall portion of the hollow structure and thereafter applying additional structural members to the helical lower edge of the intermediate side wall portion being constructed.
Abstract:
A diver''s air tank protective cap that is made of resilient material and is fitted on the bottom of an air tank to prevent the bottom of the air tank from direct and injurious contact with sand, rocks or the like. The protective cap has a resilient body that is spaced from the side of the tank by water carrying channels, and has a bottom rim and band with ridges that fit over the bottom rim edge of the tank, such as an aluminum tank or the like, and protects the tanks while passing water through the channels and through holes in the band. This allows the tank with the protective cap to be effectively used in storage or in the water.