Agitating – Mortar mixer type – With ingredient proportioning
Patent
1995-11-13
1997-08-05
Soohoo, Tony G.
Agitating
Mortar mixer type
With ingredient proportioning
366 16, 366 3, 3661821, 3661822, 3661823, 3661824, 137209, 137453, 222 52, B28C 704, B01F 1502, B67D 500
Patent
active
056535333
ABSTRACT:
A concrete mixing system includes reservoirs of liquid additives, where the additives are combined with concrete mix to add desired properties thereto. These reservoirs of liquid additive are connected to a storage chamber and a controller which controls and sequences various pumps, valves and sensors to attain the desired quantity of liquid additive for introduction to the concrete mix. The sensors measure pressure in the storage chamber, which the controller correlates to the volume therein for later mixing with the concrete mix. In situations where a back pressure in the chamber is a concern, a sensing tube is employed within the chamber. A differential pressure transducer, which has one sensor within the sensing tube and one sensor within the chamber, accurately determines the pressure and thus the volume received within the storage chamber. A modified sensing tube can also be employed to increase the sensitivity and the accuracy of the pressure measurement within the sensing tube.
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patent: 4108201 (1978-08-01), Lang
patent: 5102228 (1992-04-01), Vine-Lott
patent: 5452954 (1995-09-01), Handke et al.
patent: 5490726 (1996-02-01), Davis et al.
ABC TechCorp.
Soohoo Tony G.
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