Abstract:
This invention is directed to a method and system of obtaining a culture and placing the culture in a gaseous environment for transporting and incubating the culture. The method and system includes a fixed or portable small cylinder of a desired gaseous mixture, a nozzle secured to the outlet valve of the cylinder, a plurality of different sized zip-lock bags and a plurality of petri dishes or an equivalent type means for growing a culture.
Abstract:
A system for producing refrigeration from a source of liquid carbon dioxide. The liquid carbon dioxide is injected through a nozzle into a primary stream within an elongate enclosure. The enclosure is mounted with its inlet end spaced about the nozzle to define an opening through which an annular stream of ambient gas is directed about the primary stream. The ambient gas turbulently intermixes with the injected coolant for subliming any solid carbon dioxide or snow so that the resulting stream exhausting from the enclosure is free of snow.
Abstract:
A support system for large generally cylindrical tanks in ships and including four supporting devices each comprising a tank portion and a hull portion respectively secured to the tank and hull, one of the supports being fixed with respect to linear horizontal movement, another of the supports being movable only transversely of the longitudinal axis of the tank, yet another of the supports being movable parallel to the longitudinal axis of the tank and still another support being movable both parallel to and transversely of the longitudinal axis of the tank; each tank portion of each support being connected with its respective hull portion by means of a spherical joint with thermal insulation between the spherical portions of the joints.
Abstract:
A thermally insulated storage or transport vessel for low-boiling point liquefied gases comprises a rigid self-supporting inner receptacle or tank and a nonself-supporting outer container. The outer container is formed from a pair of longitudinally spaced opposing rigid end shells interconnected by an intermediate shell provided with stiffening formations extending peripherally of the intermediate shell. The intermediate shell is longitudinally expansible or contractile and may be formed with angular-section on curved-section corrugations.
Abstract:
A thermally insulated storage or transport vessel for low-boiling point liquefied gases comprises a rigid self-supporting inner receptacle or tank and a nonself-supporting outer container. The outer container, formed from a pair of longitudinally spaced opposing rigid end shells interconnected by an intermediate shell provided with stiffening formations extending peripherally of the intermediate shell. The intermediate shell is longitudinally expansible or contractile and may be formed with angular-section or curved-section corrugations.
Abstract:
A storage tank having a unique geometric shape and adapted to contain a liquid or a compressed gas at pressures above atmospheric pressure. The tank can be made of special materials for low temperature applications. The weight of the tank and its contents is carried on an integral supporting structure advantageously located at the lower corners of the tank. Since the tank is a single walled, pressure-type vessel, it can be utilized in the transportation of liquid natural gas without the need for a secondary liquid-tight barrier.
Abstract:
A wall construction for fluid handling devices, especially fluid storage tanks, which is adapted for expansion and contraction, has a moistureproof expansion joint which does not materially weaken the wall construction. The expansion joint includes a slit in a portion of the wall and a shaped expansion member of substantially rigid material overlaying the slit. The member is integrally bonded to the wall on opposite sides of the slit and is shaped to allow for movement of the wall. The expansion joint is particularly suited for insulated tanks having a sandwich construction comprising reinforced plastic layers separated by a layer of polyurethane foam. The expansion member is preferably of glass fiber reinforced plastic.
Abstract:
This holder and transporter is for one or more tanks of the type containing oxygen and acetylene gases. Basically, it comprises a base, a handle and means connecting them, the latter serving to receive and secure at least one tank to the assembly. More specifically, the base is of channel shape to provide rigidity, the tank receiving means being a split band to encircle the tank and provide separated ends which are perforated to receive a fastener used in clamping the band to the tank, one of the ends having a handle formed thereon. The handle is offset relative to the band to provide a selected balance between the handle and the tank. If desired, the base may be shaped to give increased strength to light-weight material and provide spaced supporting surface engaging portions which make the holder stable on uneven surfaces. The holder may be adapted for use on a plurality of tanks.
Abstract:
A vessel for storing and transporting cryogenic fluids such as liquid helium. The vessel comprises a plurality of elongated containers supported one within another in coaxial circumjacent relation in a manner minimizing heat transmission therebetween, and it further comprises a cooling system forming a temperature barrier that restricts inward migration of heat from the outer to the inner container. Respecting the support system, the inner fluid-receiving container is supported by an encapsulating intermediate heat shield container which in turn is supported by an outer jacket surrounding and enclosing the intermediate heat shield. The support means effecting such interrelationship includes both transverse support structure constraining the containers relative to each other against transverse or radial displacements and longitudinal support structure interconnecting the containers one with another and constraining the same against relative longitudinal displacements at least at one end of the vessel. The transverse support structure constitutes a plurality of structurally independent supports as respects the interconnection of the inner container with the intermediate heat shield and interconnection of the heat shield with the outer jacket; and all of the support structures define restricted thermal flow paths through which heat migration from the outer container to the inner container is sharply limited. Respecting the cooling system, two flow-separated cooling coils surround the heat shield container, one of which carries a coolant such as liquid nitrogen and the other of which connects both with the inner fluid-receiving container and with a delivery system through which fluid is withdrawn from the inner container.
Abstract:
Disclosed is a system for suspending the inner vessel of multiwalled containers such as used for storing cryogenic fluids. The suspension system is characterized in that elongate members are used to hold the inner vessel in pure tension so that the inner vessel can expand or contract without changing the load on any of the support members. There is also provided locking means to rigidly secure the inner vessel from movement during transport of the container.