Dispensing – Automatic control – By weight – volume or pressure of a second dispensed material
Patent
1977-04-20
1979-12-25
Rolla, Joseph J.
Dispensing
Automatic control
By weight, volume or pressure of a second dispensed material
222 61, 222 77, 222135, 250356, B05B 1700
Patent
active
041801857
ABSTRACT:
The present invention is aimed at measuring accurately. In an intact state, the weight of powder of particularly low bulk density which fluctuates widely in response to a slight external force. The invention relates to a weight measuring method and apparatus the essential points of which are that the flow pattern of powder flowing by air continuously is standardized by a high pressure fan and, at the same time, on the wall of duct communicating with said high pressure fan, an irradiation ray projector and a radioactive ray detector are oppositely disposed. A control circuit, consisting of an indicate controller, a converter, a ratio setter and an isolator and connected to said radioactive ray detector, provides continuous measuring of the weight of air-flowing powder and enables the subsequent control of various working processes proportionately to said detected weight.
REFERENCES:
patent: 2658644 (1953-11-01), Lowe
patent: 2953681 (1960-09-01), Frazier
patent: 3186596 (1965-06-01), Badgett
patent: 3384420 (1968-05-01), Fiscus
patent: 3448967 (1969-06-01), Seanor et al.
Fujiki Miyoji
Ishii Fumikatsu
Yamamoto Teruo
Hokushin Gohan Kabushiki Kaisha
Rolla Joseph J.
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