Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With waveguide or long line
Patent
1981-08-27
1984-08-21
Levy, Stewart J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With waveguide or long line
324106, 340600, 343703, 374162, G01R 2304, G01R 2502
Patent
active
044672780
ABSTRACT:
A liquid crystal film pack for detecting leakage from a microwave oven by passing the moist film pack adjacent the joints and seams of the oven to produce a color change in the liquid crystal material in response to a microwave radiation leak.
REFERENCES:
patent: 3693084 (1972-09-01), Augustine
patent: 3696675 (1972-10-01), Gilmour
patent: 4051435 (1977-09-01), Fanslow
patent: 4065655 (1977-12-01), Wong et al.
patent: 4272765 (1981-06-01), White
Egbert Lawrence E.
Toth Emery K.
Chandler Charles W.
Levy Stewart J.
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