Timing system and device and method for making the same
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Accused Products
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
29 Claims
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1-10. -10. (canceled)
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11. A timing device comprising:
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a. an electrochromic structure configured to generate a visual indication in a selected period of time; and
b. a driver circuit configured to automatically actuate the electrochromic structure to generate the visual indication within the selected period of time. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A timing device comprising an electrochemical cell comprising:
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a) a first electrode material;
b) a second electrode material;
c) an activating mechanism coupled to the first electrode material and the second electrode material to place the first electrode in electrical contact with the second electrode and thereby actuate the timing device;
d) a colored electrolyte, wherein the colored electrolyte becomes visible when the first electrode material is depleted, thereby indicating a passage of time; and
e) a membrane isolating a first portion of the colored electrolyte from a second portion of the colored electrolyte, wherein breaking the membrane actuates the timing device. - View Dependent Claims (18, 19, 20, 21, 22, 23, 25)
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24. (canceled)
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26. A timing device comprising an electrochemical cell comprising:
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a) a first electrode;
b) a second electrode that is asymmetric with respect to the first electrode;
c) an activating mechanism coupled to the first electrode material and the second electrode material to place the first electrode in electrical contact with the second electrode and thereby actuate the timing device, wherein the activating mechanism comprises a membrane; and
d) an electrolyte, wherein depletion of the first electrode indicates a passage of a range of durations of time. - View Dependent Claims (27, 28, 29)
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Specification