Agitating – Mortar mixer type – With ingredient proportioning
Patent
1980-02-12
1981-12-08
Coe, Philip R.
Agitating
Mortar mixer type
With ingredient proportioning
222135, 366 34, 366 35, 366 37, 366 64, 366158, 366162, 366181, B28C 514, B28C 704
Patent
active
043044930
ABSTRACT:
A foundry sand mixer for mixing and dispensing silica or green sand and their additives through the enclosed longitudinal belt conveyor mechanism having a plurality of openings in the top communicating with a first feeder disposed above the enclosed longitudinal belt conveyor mechanism and including a pair of openings in the bottom. The first feeder includes an auger-type conveyor and a sand weir communicating with the most upstream opening in the first feeder. A first hopper for containing silica sand and a second hopper for containing green sand are disposed over the first feeder. A selective valve is disposed at the bottom of each of the first and second hoppers permitting the flow of sand through only one of the hoppers at any time or preventing the flow of any sand from the hoppers. The mixer may include additional feeders, some of which are disposed above and downstream from the first feeder, and others including pumps are connected to a plurality of fluids that are fed through a constant speed mixer where the materials are mixed and the mixed materials delivered at a discharge opening.
REFERENCES:
patent: 2863651 (1958-12-01), McBride
patent: 3070858 (1963-01-01), Deacon
patent: 3294287 (1966-12-01), Went
patent: 3682448 (1972-08-01), Kedzior et al.
patent: 3746313 (1973-07-01), Weeks et al.
patent: 3885774 (1975-05-01), Harris et al.
patent: 4039169 (1977-08-01), Bartholomen
patent: 4140246 (1979-02-01), Frankie
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