Weighing scales – Weigher responsive material control – Flow terminator requiring external reset
Patent
1994-04-14
1998-05-19
Gellner, Michael L.
Weighing scales
Weigher responsive material control
Flow terminator requiring external reset
177 1, 177 71, 177116, 177121, 222 57, 2221455, G01G 1922
Patent
active
057538689
ABSTRACT:
The present invention relates to a method and an apparatus for gravimetric dosing and mixing of at least two components (K1, K2), wherein the parts by weight of the components (K1, K2) are calculated by weighing and both components (K1, K2) are mixed together in a container (21). In order to prepare a method and an apparatus whereby it is possible to mix together even components which are difficult to mix in accurate doses and uniformly and without excessively long mixing operations, it is proposed according to the invention that a first component (K1) is fed into a first weighing container (11), that a second component is fed into a second weighing container (21) continuously over a given period of time, during which time the first component (K1) is transferred at least in sections and simultaneously from the first weighing container (11) to the second weighing container (21) which receives the sum of the weights of the first and second components (K1, K2), wherein the relative parts of the first and second component (K1, K2) in the second weighing container (21) result from the reduction in weight of the contents of the first weighing container (11) and the sum of the weights of the two components (K1, K2) in the second weighing container (21), wherein two weighing containers (21) are provided accordingly for the apparatus, one of which is provided with a discharge device (13) which feeds the component (K1) out of the first weighing container to the other weighing container (21) and which is designed as a dosing device, wherein the other feed device (25) is designed as a dosing device for the second weighing container (2).
REFERENCES:
patent: 4678046 (1987-07-01), Mosher
patent: 5148943 (1992-09-01), Moller
"Industrial Weighing and Proportioning Technology for Batching Plants", W. Mayerhauser, Technisches Messen, vol. 58, No. 5, May 1991, pp. 196-201.
Gellner Michael L.
Hsieh Shih-yung
Maschinenfabrik Gustav Eirich
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