Electricity: circuit makers and breakers – Solid contact – Membrane type
Reexamination Certificate
2006-10-31
2006-10-31
Lee, K. (Department: 2832)
Electricity: circuit makers and breakers
Solid contact
Membrane type
C200S520000, C200S0050EA
Reexamination Certificate
active
07129434
ABSTRACT:
An electrical contact device (X1) includes a first contactor with contact portions (C1, C2) and a second contactor with contact portions (C3, C4). The device (X1) also includes an electrical circuit having a branch path (YA) provided by the contact portions (C1, C3) and a branch path (YB) provided by the contact portions (C2, C4). When closed, the branch path (YA) has a smaller resistance, and the branch path (YB) a greater resistance. In a closing operation, the first and second contactors approach each other. Then the contact portion (C1) and the contact portion (C3) contact with each other after the contact portion (C2) and the contact portion (C4) contact with each other. In an opening operation, the first and second contactors separate from each other. Then the contact portion (C1) and the contact portion (C3) separate after the contact portion (C2) and the contact portion (C4) separate.
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Miyashita Tsutomu
Nakatani Tadashi
Satoh Yoshio
Wakatsuki Noboru
Yonezawa Yu
Fujitsu Limited
Lee K.
Staas & Halsey , LLP
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