Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor
Patent
1988-01-29
1989-07-11
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
141 98, 141 83, 141311R, 137804, 340552, 34082534, B67D 501, B65B 130
Patent
active
048462330
ABSTRACT:
This invention relates to a method and a system for selectively filling or emptying a tank by a filling or discharging device for the tank. In accordance with the invention, a passive responder and an aerial element of an electromagnetic detection system are respectively provided in the vicinity of the inlet or outlet of the tank and on the part of the filling or discharging device cooperating with the tank inlet or outlet. The aerial element forms part of a detection system for generating an electromagnetic interrogation field, which detection system generates a signal when detecting a responder. In one embodiment of the invention, the responder is a passive responder generating a uniquely coded signal by which the detection system identifies the responder.
REFERENCES:
patent: 3148713 (1964-09-01), Jones, Jr.
patent: 3642036 (1972-02-01), Ginsburgh et al.
patent: 4095214 (1978-06-01), Minasy
patent: 4109686 (1978-08-01), Phillips
patent: 4263945 (1981-04-01), Van Ness
patent: 4469149 (1984-09-01), Walkey et al.
patent: 4544005 (1985-10-01), Meissner et al.
Cusick Ernest G.
N.V. Nederlandsche Apparatenfabriek Nedap
Recla Henry J.
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