Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1992-01-10
1993-11-09
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340568, 340572, 340988, 34082532, 364478, G08B 2100, G08B 1324
Patent
active
052606945
ABSTRACT:
An article tracking system includes a delivery zone transmitter associated with at least one physical article delivery location for transmitting data identifying that physical location, a zone detector carried by at least one manually operated article delivery vehicle for detecting the physical proximity of the vehicle to the delivery zone, and a signal device operatively associated with the zone detector for outputting a signal indicating the physical proximity of the vehicle to the delivery zone. Therefore, an operator of the vehicle is informed that the vehicle is in the proper delivery zone for delivery of an article.
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patent: 4827395 (1989-05-01), Anders et al.
patent: 5006996 (1991-04-01), Nakamura et al.
patent: 5113349 (1992-05-01), Nakamura et al.
Adams, III W. Thad
NDC Automation, Inc.
Swann III Glen R.
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