Dispensing – Weighing
Patent
1977-04-20
1979-05-01
Knowles, Allen N.
Dispensing
Weighing
2221445, 222181, 222241, 366266, G01G 1706
Patent
active
041519329
ABSTRACT:
An improved distribution tower for weighing and mixing particulate material such as chemical fertilizer has a plurality of storage containers therein for separate storage of various particulate materials and utilizes a combined weighing and mixing bin which is positioned below the storage containers to receive material therefrom, the bin being provided with an upright central auger for mixing and blending the material before discharging the material through a discharge duct at the base of the bin. The bin is also provided with a weight measuring scale to weigh quantities of material added thereto from the storage containers so as to permit predetermined fertilizer compositions to be formulated. In one embodiment the auger apparatus has radial paddles to better mix the material. A second embodiment utilizes a combined weighing and mixing bin wherein a funnel-like configuration of spaced-apart baffle plates is carried by the bin and intercepts and redistributes material discharged by the auger. An outwardly flared distribution shield is positioned below the baffle plates to intercept material from the plates and further distribute the material. The auger may have outwardly extending tabs adjacent its lower end for mixing material and may also have a radially extending arm at its upper end to discharge material outwardly toward the bin sidewalls.
REFERENCES:
patent: 157635 (1874-12-01), Requa
patent: 400807 (1889-04-01), Toepfer
patent: 1769575 (1930-07-01), Haines
patent: 1859290 (1932-05-01), Davis
patent: 3477533 (1969-11-01), Hyer et al.
patent: 3780993 (1973-12-01), Kline
patent: 3807705 (1974-04-01), Humkey et al.
patent: 3822056 (1974-07-01), Hawes, Jr. et al.
patent: 3946909 (1976-03-01), Wheeler
Knowles Allen N.
Silverberg Fred A.
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