Agitating – Mortar mixer type – Plural mixing chambers
Patent
1979-12-10
1981-08-25
Coe, Philip R.
Agitating
Mortar mixer type
Plural mixing chambers
222137, 222276, 366 19, 366 27, 366 32, 366 34, 366 37, 366 64, B28C 512, B28C 542, B28C 706, B28C 712
Patent
active
042855985
ABSTRACT:
A concrete mixing machine is disclosed which mixes small batches of concrete using any desired ratio of gravel, sand, cement, and water. The dry materials are mixed into concrete at the site where the concrete is to be poured. The apparatus includes hoppers for storing the dried mix material, a water tank, a metering slide for measuring desired amounts of cement, sand, and gravel to the desired proportions; a mixing, feeding, and dispensing system; and a hydraulic system for driving the mixing apparatus. The hydraulic drive system is utilized to overcome the binding which occurs when residual concrete begins to set.
REFERENCES:
patent: 1557839 (1925-10-01), Hodgson
patent: 3058625 (1962-10-01), Greaves
patent: 3456925 (1969-07-01), Gallagher
patent: 3604057 (1971-09-01), Nixdorff, Jr.
patent: 3666146 (1972-05-01), Robinson
patent: 3746313 (1973-07-01), Weeks et al.
patent: 3807706 (1974-04-01), Kugle et al.
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