Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Reexamination Certificate
2011-08-23
2011-08-23
Lee, Kyung (Department: 2833)
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
C338S236000, C338S233000
Reexamination Certificate
active
08004385
ABSTRACT:
An electrical protective device is described which has two PTC thermistor components which are in the form of plates and are arranged in a common housing. The housing in each case has an opening on two opposite sides, which opening corresponds to the dimensions of the PTC thermistor components such that the PTC thermistor components can be inserted into the housing through the openings. The two PTC thermistor components are electrically isolated from one another in the housing. The PTC thermistor components each have at least two connecting wires, by means of which the PTC thermistor components are locked to the housing.
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International Telecommunication Union, “Resistibility of Telecommunication Equipment Installed in a Telecommunications Centre to Overvoltages and Overcurrents,” ITU-T, Jul. 2003, pp. 1-30, Recommendation K.20, International Telecommunications Union, Geneva, Switzerland.
Epcos AG
Lee Kyung
Slater & Matsil L.L.P.
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