Agitating – Rubber or heavy plastic working – Stationary mixing chamber
Patent
1983-05-03
1985-04-09
Simone, Timothy F.
Agitating
Rubber or heavy plastic working
Stationary mixing chamber
366185, 366296, A21C 100, B01F 708
Patent
active
045098603
ABSTRACT:
An improved dual action mixer is provided of the type having simultaneously counterrotatable mixing elements mounted within a mixer drum, wherein the mixing elements are relatively easily removable for cleaning purposes. One mixing element comprises an array of paddles carried by a driven shaft having one end threaded to a motor drive shaft at one end wall of the drum and an opposite end rotatably support with axial clearance within a bearing block movably mounted on the opposite drum end wall. The other mixing element comprises a pair of support hubs carried rotatably about the driven shaft and secured to radiating scraper arms having their outer ends joined to mixer blades extending with arcuate contour generally between the drum end walls, wherein one support hub is held axially by a shoulder on the driven shaft in engagement with a drive collar disposed about the drive shaft for opposite rotation thereto. The two mixing elements are removable quickly and easily by unthreading the driven shaft from the drive shaft, followed by retraction of the bearing block from the drum end wall and disengagement of the driven support hub from the drive collar to permit free withdrawal of the mixing elements from the drum for cleaning.
REFERENCES:
patent: 2784950 (1957-03-01), Bakewell
patent: 2784951 (1957-03-01), Bakewell
patent: 3722834 (1973-03-01), Bakewell
patent: 3799459 (1974-03-01), Bakewell
Lasar Manufacturing Co.
Simone Timothy F.
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