Electricity: motive power systems – Automatic and/or with time-delay means – Responsive to thermal conditions
Patent
1973-12-03
1976-09-21
Dobeck, B.
Electricity: motive power systems
Automatic and/or with time-delay means
Responsive to thermal conditions
307 10R, 317132, G05D 2330
Patent
active
039821633
ABSTRACT:
A temperature sensitive electronic switching arrangement has a casing with two terminals, one of which may be constituted by the casing. In the casing is a positive temperature coefficient resistor and associated trigger circuit. As the temperature rises, a point is reached at which the circuit between the casing terminals changes from a high resistance to a low resistance. The arrangement has many uses, particularly in road vehicles.
REFERENCES:
patent: 2945133 (1960-07-01), Pinckaers
patent: 2991405 (1961-07-01), Carlson
patent: 3500074 (1970-03-01), Obenhaus
patent: 3512372 (1970-05-01), Kusuda et al.
patent: 3514966 (1970-06-01), Kusud et al.
patent: 3666990 (1972-05-01), Strobl
patent: 3695054 (1972-10-01), Barry
patent: 3794896 (1974-02-01), Holt
Dobeck B.
The Lucas Electrical Company Limited
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