Electrical transmission or interconnection systems – Switching systems – Switch actuation
Reexamination Certificate
2006-07-11
2006-07-11
Sircus, Brian (Department: 2836)
Electrical transmission or interconnection systems
Switching systems
Switch actuation
C307S125000, C307S126000, C307S140000
Reexamination Certificate
active
07075195
ABSTRACT:
An improved electrical lockout mechanism includes a first connection means to a power source, and a second connection means to a power input terminal of the machine being protected. The machine includes a manually-operated ON/OFF switch. A switching element, which is coupled between the first and second connection means, selectively completes and breaks an electrical circuit between the first and second connection means in response to a control signal supplied thereto. A control circuit generates this control signal in a manner that prevents unwanted machine restarts. The switching element may be realized by an electromagnetic relay device, or by a thyristor-based switching device such as a triac device. The electrical lockout mechanism can be integrated with a power cord that delivers electrical power to a machine, or can be integrated into the machine itself.
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Gordon & Jacobson P.C.
Parries Dru
Safestart System, LLC
Sircus Brian
LandOfFree
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