Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Reexamination Certificate
2007-07-17
2007-07-17
Lee, K. (Department: 2832)
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
C338S234000, C361S029000
Reexamination Certificate
active
10919091
ABSTRACT:
A motor start relay (100) comprises a positive temperature PTC thermistor, a PTC case400of heat resistant resin for receiving the PTC thermistor horizontally, first and second contact/terminals (500, 560) each having contacts electrically engaged with a respective electrode surface of the PTC thermistor in the PTC case (400), a housing (200) receiving the PTC case (400) and a cover (300) attached on the housing (200). FIG.9shows the failsafe mechanism of the present invention. In case of a crack occurring in the PTC thermistor, thermistor portion PTC1is rotated by spring contact (510) with a force F1, and thermistor portion PTC2is pushed by spring contact (570) at the reverse direction and is dropped through an opening of the PTC case (400).
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Baumann Russell E.
Lee K.
Sensata Technologies, Inc.
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