Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-07-21
1999-12-07
Swann, Glen
Communications: electrical
Condition responsive indicating system
Specific condition
280 792, 280 795, 3404255, 3405721, 3408253, 34082554, G08B 13181
Patent
active
059990996
ABSTRACT:
A rolling truck consisting of a metal container on whose bottom are provided castors and at least one brake gear, where the bottom has a contact area between the castors on the opposite sides for placing the rolling truck on a conveyor belt. A transponder is arranged on the bottom of the rolling truck, and the transponder is mounted on a plastic spacer at a distance from the bottom of the rolling truck, and outside the contact area of the bottom of the rolling truck. This reduces the distance between the transponder and the floor where the antenna of an RF reader is installed, and thus reduces the size and power required for the transponder.
REFERENCES:
patent: 5505473 (1996-04-01), Radcliffe
patent: 5519381 (1996-05-01), Marsh et al.
patent: 5767765 (1998-06-01), Shoup
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