TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME
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Abstract
A timing device for indicating the passage of a duration of time is disclosed. The timing device and system, in accordance with the embodiments of the invention, comprise an electrochemical component which generates a visual and/or audio indication of the passage of time. The timing device further comprises a compensating element, such as a varistor, a thermistor and/or combinations thereof. The compensating element regulates the response of the device with respect to changes in temperature. The timing device is configured to indicate the passage of a single duration of time or comprises zones that are activated in a range of prescribed times and individually or collectively indicate the passage of time or the passage of a range of times.
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Citations
51 Claims
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1-29. -29. (canceled)
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30. A timing device for monitoring a time period comprising:
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a. a first reactive zone for indicating a first time period; b. a second reactive zone separated from the first reactive zone and indicating a second time period; and c. an activation mechanism for activating the timing device. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A timing system comprising:
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a. a first indicator for indicating a first time period; b. a second indicator for indicating a second time period and chemically isolated from the first indicator; and c. an activation mechanism for activating the system. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48)
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49. A method of making a timing device comprising:
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a. providing a base; b. attaching a first timing zone to the base; c. attaching a second timing zone that is chemically isolated from the first timing zone to the base; and d. attaching a mechanism for activating the device. - View Dependent Claims (50, 51)
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Specification