Electricity: electrical systems and devices – Safety and protection of systems and devices – Motor protective condition responsive circuits
Reexamination Certificate
2007-11-14
2010-11-23
Ip, Paul (Department: 2837)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Motor protective condition responsive circuits
C361S087000, C318S474000, C200S181000, C335S078000, C700S018000
Reexamination Certificate
active
07839611
ABSTRACT:
A programmable logic controller is disclosed. The programmable logic controller includes control circuitry integrally arranged with a current path and at least one micro electromechanical system (MEMS) switch disposed in the current path. The programmable logic controller further includes a hybrid arcless limiting technology (HALT) circuit connected in parallel with the at least one MEMS switch facilitating the opening of the at least one MEMS switch. The programmable logic controller also may include a MEMS switch and a voltage sensor for measuring the voltage across the MEMS switch. The MEMS switches are arranged to transmit or receive logic signals.
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Kumfer Brent Charles
Premerlani William James
Rivers, Jr. Cecil
Subramanian Kanakasabapathi
Cantor & Colburn LLP
General Electric Company
Ip Paul
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