Fluid storage and dispensing vessels having colorimetrically...

Details Fluid storage and dispensing vessels having colorimetrically... Fluid storage and dispensing vessels having colorimetrically...

2011-08-23

2011-08-23

Gordon, Brian R (Department: 1773)

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

Leak detection

C422S040000, C422S051000, C422S085000, C422S537000

Reexamination Certificate

active

08003391

ABSTRACT:
A fluid 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 colorimetrically effective to indicate the occurrence of a leakage event by visually perceptible change of color.

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