Agitating – Mortar mixer type – With heating or drying
Patent
1987-08-25
1989-03-21
Hornsby, Harvey C.
Agitating
Mortar mixer type
With heating or drying
366 25, 366 34, 366 42, 366 57, 366 59, 366228, 34136, 422111, 422117, 422118, B28C 520, B28C 546, B28C 712, B28C 716
Patent
active
048137847
ABSTRACT:
A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the downstream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the drum. The material and asphalt are then mixed and moved through the passage and finally discharged.
REFERENCES:
patent: 1336422 (1920-04-01), Burman
patent: 2487887 (1949-11-01), McEachran
patent: 4136966 (1979-01-01), Menhenhall
patent: 4165184 (1979-08-01), Schlarmann
patent: 4207062 (1980-06-01), Moench et al.
Hornsby Harvey C.
Machuga Joseph S.
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