Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge – Specific conduction means or dissipator
Patent
1994-09-23
1997-11-25
Fleming, Fritz
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
Specific conduction means or dissipator
361220, H05F 302
Patent
active
056918755
ABSTRACT:
The present invention provides a grounding system for discharging static electricity. The grounding system includes a body-contacting member which forms an electrical connection with at least a portion of a human body and a grounding cable. The grounding cable has an elongated conductive member with a first end for connection to ground potential and a second end for electrically communicating with the body-contacting member. At least one end of the elongated conductive member is embedded within a resistive material having an electrical conductivity of 10.sup.5 -10.sup.12 ohms/square. In one embodiment, the body-contacting member is a wrist or ankle strap while the resistive material is a polymer loaded with conductive and semiconductive particles. Exemplary conductive particles are selected from carbon, metals, and mixtures thereof.
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"Method for Providing Electrostatic Discharge Keyboards", Anonymous, Research Disclosure, No. 313, p. 414, Emsworth, GB (May 1990).
Dangelmayer George Theodore
Franey John Phillip
Renninger, II Robert Garland
Botos Richard J.
Fleming Fritz
Lucent Technologies - Inc.
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