Abstract:
A flexible environmental protective cover for a compressed gas transport tank, having a cylindrical body, an upwardly extending valve, and a valve protection structure having a handle opening, the cover comprising a generally cylindrical drape portion; an upwardly extending enveloping portion, adapted to surround the upper valve protection structure of the tank and having an opening corresponding the handle opening, contiguous with the cylindrical drape portion; and an upper portion, inside the upwardly extending enveloping portion, having an aperture corresponding to a location of the upwardly extending valve, and allowing the valve to extend therethrough. The cover may include a business card holder flap, as well as an optional sensor system for determining liquid level in the tank and hazardous environmental gas levels.
Abstract:
A connection system for a pressure cylinder (5) comprises a check valve (4) located in the neck (15) of the pressure cylinder (5) and which is equipped with a gas removal connection opening and can be operated from the outside by means of a valve tappet displaceable along a central axis (6), as well as a connecting device (2), which is connectable in gastight, detachably locking manner with the check valve (4) and contains means for valve tappet operation. In such a connection system an easy and rapid replacement or connection of cylinders is made possible, whilst leading to a high security against incorrect operation and faults and reliable handling and storage of the cylinders in that the pressure cylinder (5) with the check valve (4) and connecting device (2) are mechanically couplable in a common pivoting axis (34) located at right angles to and outside the central axis (6) and in the coupled state are connectable by a pivoting relative to one another about the pivoting axis (34).
Abstract:
An automated gas cylinder monitoring system includes: a data storage collar associated with a gas cylinder including a resident memory and an insulated housing, the insulated housing being configured for coupling with a gas cylinder; a read/write probe for writing data to and receiving data from the resident memory of said data storage collar; measuring devices for determining the volume of gas in a gas cylinder; and a host computer for transmitting information to and receiving information from the read/write probe.
Abstract:
A propane fuel storage tank having a fuel-containing tank body with an outer printed sleeve made of linear heat-shrink plastic material heat-shrunk in tight fitting encircling relation about the tank for preventing viewing of surface imperfections in the tank beneath the sleeve. A method of making and reconditioning propane fuel tanks is disclosed which includes loosely positioning a sleeve of such linear heat-shrinkable plastic material about the tank body and exposing the plastic sleeve to a temperature above its heat-shrink temperature to cause it to contract and tightly conform about the outer perimeter of the tank. The sleeve preferably encompasses a central cylindrical side wall of the tank, portions of the upper and lower semi-spherical end walls of the tank, and the lower foot ring, which results in a like-new reconditioned tank without the necessity for complete removal of surface imperfections and prior adhesively applied labels, or the need for complete repainting of the tank.
Abstract:
A safety valve or a compressed gas cylinder is formed by a tubular assembly projecting into the access port of the cylinder and axially controlling a control valve and elongated stem axially connected with the control valve projects into the passageway formed by the tubular valve assembly to maintain a valve off seat. In the event the control valve is damaged or broken off and the stem removed the safety valve is biased closed with its seat by pressure drop across the position of the valve seat with minimal loss of gas.
Abstract:
A device, and a container having such a device, is provided for permitting filling the container with a predetermined weight of the fluid. The device and container include a main channel to introduce the fluid into the container at a fill pressure; a detector mechanism to detect a "filled" condition based on fluid weight; and an fluid-weight control mechanism to automatically prevent introducing fluid into the container in excess of the "filled" condition. A compression spring offsets part of the weight of a displacer such that the displacer becomes buoyant as the container becomes "filled". The displacer has a seat mechanism that sealingly engages an orifice mechanism creating a differential pressure, substantially less than the fill pressure, across a control device causing closure of the main channel. The fluid-weight control device, which is substantially independent of the composition and temperature of the fluid and of inertial effects induced in an attempt to thwart the fluid-weight control safeguard, also prevents introduction of fluid into the container as the container is non-upright. Modified embodiments utilize a pilot valve arrangement instead of the differential pressure feature. A method of practicing the invention is also provided.
Abstract:
A ceramic composite is provided comprising ceramic fibers and microparticles bound together as a porous matrix with a ceramic binder. The ceramic composite is particularly useful for transporting cryogenic fluids.
Abstract:
Extraction of a fluent material from a pressurized system containing same such as CFC for reclamation is effected into a container by reducing the temperature of the container to a sufficiently cold temperature to generate a vacuum within the container sufficient to extract the CFC from the system to be extracted. The container is cooled by placing the container into an insulated drum containing a glycol bath within which is provided an evaporator duct shaped with a plurality of separate duct portions lying in horizontal planes and spaced vertically with each portion interconnected to the next by a vertical section of the duct. Into the duct is injected carbon dioxide from a compressed liquid supply which is passed through a metering orifice tuned to the length and shape of the duct so that evaporation takes place by the end of the duct. Any liquid remaining at the end of the duct as the temperature cools is returned by a diverter valve into the gylcol bath for additional cooling effect.
Abstract:
A compressed natural gas refueling station tank comprises an elongated tubular body having a diameter of about 8 to 10 inches and a length of 50 feet or more. The tank is bent into a serpentine shape to produce a compact configuration which can be stacked with other like tanks and connected to a compressor through a manifold.
Abstract:
Method and apparatus to contain dangerous gases venting or leaking from a primary containment vessel. An outer containment vessel holds the primary containment vessel in fluid tight relationship to the outer vessel. The outer vessel has an internal volume large enough to contain the entire contents of the inner vessel and includes means to absorb or scrub gas leaking from the inner vessel. Removal of gas from the inner vessel to a point of use is controlled by valves and conduits contained in the outer vessel, the valves being controlled from outside the vessels.