Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means
Patent
1993-05-07
1995-02-14
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With measuring, testing, or indicating means
429 93, 324435, H07M 1048
Patent
active
053894707
ABSTRACT:
A temperature responsive tester for measuring the voltage of a voltage source includes a temperature responsive display and an electrical element thermally coupled with the temperature responsive display for heating the temperature responsive display when a voltage exceeding a predetermined threshold level is impressed across the electrical element. Other embodiments of a voltage tester are disclosed.
REFERENCES:
patent: 4006414 (1977-02-01), Parker
patent: 4571533 (1986-02-01), Dey
patent: 4737020 (1988-04-01), Parker
patent: 5059895 (1991-10-01), Cataldi et al.
patent: 5128616 (1992-07-01), Palmer
patent: 5216371 (1993-06-01), Nagai
Brass Jack
Parker Robert
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