DEREK A LUCAS
Broker in Hingham, MA
License number
Massachusetts 44376
Issued Date
Mar 1, 1965
Expiration Date
Apr 24, 1988
Type
Broker
Address
Address
Hingham, MA 02061
Professional information
Operator Static Grounding Cord
US Patent:
4720764, Jan 19, 1988
Filed:
Mar 2, 1987
Appl. No.:
7/020479
Inventors:
Derek A. Lucas - Norwell MA
Assignee:
Alden Research Foundation - Brockton MA
International Classification:
H05F 302
US Classification:
361212
Abstract:
Apparatus for draining the static charge from an operator handling discharge-sensitive electronic components has an electrode module applied to the operator's wrist connected to a grounding module by a two conductor loop which includes a lamp, a battery and a switch which, when closed, lights the lamp if one of the conductors is continuous between the electrode and grounding terminal.