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AssigneeAdvanced Technology Materials, Inc.
InventorsPaul J. Marganski, Jose I. Arno, Edward A. Sturm, Kristy L. Zaleta
Estimating the term…
A chemical storage and dispensing vessel having associated therewith a colorimetric member that is effective to change color in exposure to leakage of a gas contained in the vessel. The colorimetric member may be constituted by a film, e.g., of a shrink-wrap character, that contains or is otherwise associated with a colorimetric agent undergoing color change in exposure to fluid leaking from the vessel. Such shrink-wrap film may be applied to a portion of the vessel susceptible to leakage, or alternatively to the entire vessel, so that the film is colorimetric effective to indicate the occurrence of a leakage event by visually perceptible change of color.
A fluid storage and dispensing apparatus comprising a fluid storage and dispensing vessel including a neck portion and a valve head assembly attached to said vessel at said neck portion, and a shrink-wrapped colorimetric film effective in the presence of leaking gas from said vessel to undergo a color change indicative of said leaking gas, said shrink-wrapped colorimetric film being sealed to an exterior surface of the vessel and overlying the neck portion of the vessel and the valve head assembly to define an interior void volume enclosed by the shrink-wrapped film, wherein said enclosed interior void volume surrounds the neck portion and valve head assembly, whereby gas leakage at said neck portion or at said valve head assembly can enter the enclosed interior void volume and distribute throughout said enclosed interior void volume to effect a color change in the shrink-wrapped film surrounding the neck portion and valve head assembly, thereby providing a visually perceptible response to a leakage event.
A method of visually detecting a leakage event associated with a fluid storage and dispensing vessel including a neck portion and a valve head assembly attached to said vessel at said neck portion, said method comprising shrink-wrapping at least a portion of said vessel with a colorimetric film effective in the presence of leaking gas from said vessel to undergo a color change indicative of said leaking gas, and sealing the colorimetric film to an exterior surface of the vessel so that the colorimetric film overlies the neck portion of the vessel and the valve head assembly to define an interior void volume enclosed by the colorimetric film, with the colorimetric film surrounding the neck portion and valve head assembly, whereby gas leakage at said neck portion or at said valve head assembly can enter the enclosed interior void volume and distribute throughout said enclosed interior void volume to effect a color change in the colorimetric film surrounding the neck portion and valve head assembly, thereby providing a visually perceptible response to a leakage event.
A fluid storage and dispensing apparatus, comprising a fluid storage and dispensing vessel having at least a portion thereof shrink-wrapped in a film in a compressive state against adjacent exterior surface of the vessel, wherein said shrink-wrapped film encloses or constitutes a colorimetric member effective in exposure to fluid leaking from the vessel to change color, thereby providing a visually perceptible response to a leakage event, wherein said fluid storage and dispensing apparatus comprises at least one of the features (a)-(c):
A method of visually detecting a leakage event associated with a fluid storage and dispensing vessel, said method comprising shrink-wrapping at least a portion of said vessel in a film so that said film is in a compressive state against adjacent exterior surface of the vessel, wherein said shrink-wrapped film encloses or constitutes a colorimetric member effective in exposure to fluid leaking from the vessel to change color, thereby providing a visually perceptible response to a leakage event, wherein said method is characterized by at least one of the features (a)-(c):
Dependencies are inferred from the claim text.