Horology: time measuring systems or devices – Time interval – Electrical or electromechanical
Patent
1979-12-06
1983-01-11
Miska, Vit W.
Horology: time measuring systems or devices
Time interval
Electrical or electromechanical
368121, 116200, 194 4R, G01D 1100, G07F 106, G04F 800
Patent
active
043679579
ABSTRACT:
A time-lapse indicator in which a receptacle contains a fluid material having numerous discrete particles dispersed in a liquid carrier, and a layer of absorbent material in close proximity to the receptacle, the receptacle and absorbent material being separated from one another by a wall which is broken when the time period is to be determined by the indicator. The indicator normally has a pair of electrodes for measuring the resistance of the fluid material after a portion of the liquid carrier has been absorbed therefrom in the absorbent material. Mechanisms for both activating and reading the indicator may be used.
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patent: 3942467 (1976-03-01), Witonsky
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Hobbs Marmaduke A.
Micro-Circuits Company
Miska Vit W.
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