Electrical connectors – Having circuit interrupting provision effected by mating or...
Reexamination Certificate
2006-12-18
2008-10-07
Ta, Tho D (Department: 2833)
Electrical connectors
Having circuit interrupting provision effected by mating or...
C439S181000, C200S051100
Reexamination Certificate
active
07431601
ABSTRACT:
An automatic power line disconnect apparatus has a sensor pin for signaling the separation of the plug from the disconnect apparatus. The operative movement of the sensor pin is shorter than the length of the male electrical connectors on the apparatus, thereby insuring that the apparatus is disconnected from the power line before the electrical connectors' contact is broken to reduce electrical connector erosion from arcing. A motor driving a rack and pinion gear combination responds to an engine starter signal by driving the rack in a direction that disconnects the power line plug from the automatic disconnect apparatus. Further circuits are provided to lock out low voltage starter signals, photoelectric detectors to control movement of the rack, and timer circuits to limit the duration of the motor operation and to lock out starter signals when the disconnect apparatus is being separated from the power line plug.
REFERENCES:
patent: 4911650 (1990-03-01), Garcia Ramos
patent: 2003/0060069 (2003-03-01), Duquerroy et al.
Kussmaul Ernest A.
Nugent, Jr. Thomas H.
Baxley Charles E.
Kussmaul Ernest A.
Ta Tho D
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