Communications: radio wave antennas – Antennas – Including magnetic material
Patent
1992-01-23
1994-04-19
Hajec, Donald
Communications: radio wave antennas
Antennas
Including magnetic material
343741, 340572, H01Q 708
Patent
active
053050029
ABSTRACT:
A novel antenna system disposed around a conveyor belt for the interrogation of objects passing through the antenna which overcomes centralized dead zone problems is disclosed. A frame antenna which is disposed around the conveyor belt achieves the interrogation and a separate reading antenna, which is disposed hingedly from the top of the frame antenna performs the reception.
REFERENCES:
patent: 2553295 (1948-11-01), Bock
patent: 3754226 (1973-08-01), Fearon
patent: 3868669 (1975-02-01), Minasy
patent: 4384281 (1983-05-01), Cooper
patent: 4570165 (1986-02-01), Tsurumaru et al.
patent: 4679046 (1987-07-01), Curtis et al.
patent: 5084699 (1992-01-01), DeMichele
D'Hont Loek
Holodak George
Donaldson Richard L.
Hajec Donald
Ho Tan
Kesterson James C.
Mapstone Rebecca A.
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