Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge – Of storage or hazardous area or fluid handling
Patent
1997-06-17
1999-09-28
Fleming, Fritz
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
Of storage or hazardous area or fluid handling
361212, H01R 464
Patent
active
059598280
ABSTRACT:
A coupling for preventing the buildup of static electricity between adjacent conduits includes a sleeve enclosed by pivotally connected semicircular segments. The semicircular segments are in electrical contact with first and second conduits via bonding wires. The semicircular segments, bonding wires, and/or flanges are coated with a hard metallic ductile conductive coating, which is preferably a boron-nickel coating, to provide electrical conductivity between the conduits. The coupling may be entirely coated with the boron-nickel coating, or selectively coated to provide the required electrical conductivity between the conduits. The conduits include flanges mounted on the ends thereof. Each flange is selectively coated with a hard anodized, dry-lube, thin-film non-conductive, or other insulating coating to reduce or prevent arcing on the interior of the coupling under lighting strike or other hazardous electrical conditions.
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Engineering Bulletin--"Boron Electroless Nickel vs. Hard Chrome," Anodyne.TM., Inc., May 1992.
Field Stanley R.
Lewis Jeffrey M.
Fleming Fritz
Hydraflow
Klein David M.
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