Abstract: A thermal proxy device for monitoring change in condition. The change in condition can be a change in temperature such as a change above or below a predetermined temperature or a freezing condition. An indicator used in the thermal proxy device can have the same physical-chemical properties as the product to be monitored. The indicator can have a similar thermal mass with similar specific gravity and/or specific heat of the material to be monitored. The indicator can be associated with a container of the material to be monitored.

Abstract: A thermal proxy device for monitoring change in condition. The change in condition can be a change in temperature such as a change above or below a predetermined temperature or a freezing condition. An indicator used in the thermal proxy device can have the same physical-chemical properties as the product to be monitored. The indicator can have a similar thermal mass with similar specific gravity and/or specific heat of the material to be monitored. The indicator can be associated with a container of the material to be monitored.

Abstract: A system for remotely monitoring change in condition. A condition indication device can include an indication area and an identification area. The indication area can include one or more of a freeze/thaw indicator, heat temperature marker or high temperature indicator. A reader reads information from the indication area and the identification area. Information is forwarded from the reader using a remote network to a remote recognition device. In one embodiment, the reader takes a picture of the indicator device and the picture is forwarded as information to the remote recognition device. A conductivity changes to solutions and/or emulsions together with color changes in the remote indicating device can remotely monitor the change in condition. The information obtained at the remote recognition device can be used to determine a status, location and time for a point in transit or storage of the condition indication device.

Abstract: A system for remotely monitoring change in condition. A condition indication device can include an indication area and an identification area. The indication area can include one or more of a freeze/thaw indicator, heat temperature marker or high temperature indicator. A reader reads information from the indication area and the identification area. Information is forwarded from the reader using a remote network to a remote recognition device. In one embodiment, the reader takes a picture of the indicator device and the picture is forwarded as information to the remote recognition device. A conductivity changes to solutions and/or emulsions together with color changes in the remote indicating device can remotely monitor the change in condition. The information obtained at the remote recognition device can be used to determine a status, location and time for a point in transit or storage of the condition indication device.

Abstract: A system and method for indication of temperature exposures beyond a set of predetermined limits employs the salts of weak acid-strong base or of a strong acid-weak base compound as reactants. A device includes a housing and capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it expands upon freezing. The capsule is sized such that when the liquid freezes and expands, the capsule fractures. A second reactant is provided within the housing. The location of the second reactant and the method of attaching (if any) the second reactant to the housing may take various forms. When the liquid within the capsule freezes, it expands and fractures the capsule. Upon thawing, the reactant within the capsule escapes and mixes with the reactant located outside the capsule. A second embodiment is a time-temperature indicator. A flexible housing is used, allowing the user to manually deform the housing to fracture a capsule enclosed therein.

Abstract: A system and method for indication of temperature exposures beyond a set of predetermined limits employs the salts of weak acid-strong base or of a strong acid-weak base compound as reactants. A device includes a housing and capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it expands upon freezing. The capsule is sized such that when the liquid freezes and expands, the capsule fractures. A second reactant is provided within the housing. The location of the second reactant and the method of attaching (if any) the second reactant to the housing may take various forms. When the liquid within the capsule freezes, it expands and fractures the capsule. Upon thawing, the reactant within the capsule escapes and mixes with the reactant located outside the capsule. A second embodiment is a time-temperature indicator. A flexible housing is used, allowing the user to manually deform the housing to fracture a capsule enclosed therein.

Abstract: A device and method of making a device for indicating a change in condition is disclosed. A first embodiment is a device for indicating a transition from a frozen condition to a thawed condition is disclosed. The device includes a housing and a capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it expands upon freezing. The capsule is sized such that when the liquid freezes and expands, the capsule fractures. A second reactant is provided within the housing. The location of the second reactant and the method of attaching (if any) the second reactant to the housing may take various forms. When the liquid within the capsule freezes, it expands and fractures the capsule. Upon thawing, the reactant within the capsule escapes and mixes with the reactant located outside the capsule. A second embodiment is a time-temperature indicator. A flexible housing is used, allowing the user to manually deform the housing to fracture a capsule enclosed therein.

Abstract: A device and method of making a device for indicating a change in condition is disclosed. A first embodiment is a device for indicating a transition from a frozen condition to a thawed condition is disclosed. The device includes a housing and a capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it expands upon freezing. The capsule is sized such that when the liquid freezes and expands, the capsule fractures. A second reactant is provided within the housing. The location of the second reactant and the method of attaching (if any) the second reactant to the housing may take various forms. When the liquid within the capsule freezes, it expands and fractures the capsule. Upon thawing, the reactant within the capsule escapes and mixes with the reactant located outside the capsule. A second embodiment is a time-temperature indicator. A flexible housing is used, allowing the user to manually deform the housing to fracture a capsule enclosed therein.

Abstract: A device and method of making a device for indicating a change in condition is disclosed. A first embodiment of the device includes a housing and a capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it expands upon freezing. The capsule is sized such that when the liquid freezes and expands, the capsule fractures. A second reactant is provided within the housing. The location of the second reactant and the method of attaching (if any) the second reactant to the housing may take various forms. When the liquid within the capsule freezes, it expands and fractures the capsule. Upon thawing, the reactant within the capsule escapes and mixes with the reactant located outside the capsule. A second embodiment is a time-temperature indicator, which uses a flexible housing to allow manual deformation of the housing to fracture a capsule enclosed therein.

Abstract: A device and method of making a device for indicating a change in condition is disclosed. A first embodiment is a device for indicating a transition from a frozen condition to a thawed condition is disclosed. The device includes a housing and a capsule. A first reactant and a liquid are included within the capsule. The liquid is chosen such that it expands upon freezing. The capsule is sized such that when the liquid freezes and expands, the capsule fractures. A second reactant is provided within the housing. The location of the second reactant and the method of attaching (if any) the second reactant to the housing may take various forms. When the liquid within the capsule freezes, it expands and fractures the capsule. Upon thawing, the reactant within the capsule escapes and mixes with the reactant located outside the capsule. A second embodiment is a time-temperature indicator. A flexible housing is used, allowing the user to manually deform the housing to fracture a capsule enclosed therein.

Abstract: Apparatus in which melting ice is used to activate a dye formation in producing a color indication of thawing.