Fluent material handling – with receiver or receiver coacting mea – With conveying means to supply successive receivers – Sampler type
Patent
1988-05-06
1989-09-05
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
With conveying means to supply successive receivers
Sampler type
222109, 222287, 222318, 422 28, 422116, 422304, 53426, 99452, 239 61, 239 70, 261 782, 261 361, 261 27, G01F 1100, B67D 116, G05B 1700, B65B 5500
Patent
active
048629332
ABSTRACT:
A conductive liquid is dosed with a vessel having an upper rim and with a dip tube having a lower end projecting down into the vessel below the rim thereof. The vessel is periodically overfilled with the liquid such that periodically the liquid overflows the rim. Immediately after each overfilling of the vessel, the liquid is aspirated from the vessel through the dip tube until the lower end of the dip tube is above the surface of the liquid in the vessel. The resistance between the dip tube and the liquid in the vessel is continuously monitored and an error signal is generated either when the detected resistance falls below a predetermined threshold corresponding generally to that of the liquid after the overfilling but before the aspirating or when the detected resistance is substantially above the threshold after the aspirating and before the next overfilling. The flow of liquid out of the vessel is impeded except over the rim and through the dip tube at least during the aspirating step.
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Dubno Herbert
Jacyna J. Casimer
Muller GmbH & Co. KG.
Recla Henry J.
Wilford Andrew
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