Electricity: measuring and testing – Internal-combustion engine ignition system or device – Coil
Reexamination Certificate
2007-04-16
2009-06-23
Dole, Timothy J (Department: 2831)
Electricity: measuring and testing
Internal-combustion engine ignition system or device
Coil
C324S546000
Reexamination Certificate
active
07550974
ABSTRACT:
A simple “go or no go” ignition coil tester identifies coils that have failed or that are about to fail by driving a coil with sufficient voltage and amperage to operate at its peak output. Coils that have failed or that are close to failure cannot operate at peak output and thus fail the test. A standard kilovolt tester is used to simulate a spark plug and an audio indication of sparking produced by the kilovolt tester is used to confirm operation or failure of the coil. The system dispenses with short circuit and closed circuit test apparatus as well as the structures and failings associated with visual spark indicators.
REFERENCES:
patent: 4186337 (1980-01-01), Volk et al.
patent: 4631451 (1986-12-01), Anderson et al.
patent: 5196798 (1993-03-01), Baeza et al.
Reynolds Greg
Schneider Robert
Dole Timothy J
The Marbury Law Group PLLC
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