Agitating – Stirrer within stationary mixing chamber – Rotatable stirrer
Patent
1989-07-31
1990-09-11
Simone, Timothy F.
Agitating
Stirrer within stationary mixing chamber
Rotatable stirrer
277 95, 277206R, 366331, 366349, B01F 716
Patent
active
049557246
ABSTRACT:
The invention relates to a machine for the processing of foodstuffs or for the preparation of liquid or pasty pharmaceutical and chemical products, with a bowl, through the bowl bottom of which there leads a motor shaft, protruding perpendicularly into the bowl, of a motor arranged underneath the bowl, and with a shaft seal sealing off the motor shaft vacuum-tightly from the bowl bottom.
A cap-shaped seal support is pushed onto the free end of the motor shaft and resets underneath the fitted bowl on a shoulder of the motor shaft and engages at a clear distance labyrinth-like with a lower peripheral cap rim over a stationary housing ring enclosing the motor shaft. The seal support is pushed over and contacts an O-ring which lies in an annular groove of the motor shaft. In the upper section of the seal support, a V-ring is loosely inserted as a sealing ring, and encloses the shaft passage in the bowl bottom with an upper V-member. With fitted bowl, the V-ring is seated under radial prestress vacuum-tightly on the motor shaft and bears with its upper V-member under axial stress against the underside of the bowl bottom.
REFERENCES:
patent: 2746779 (1956-05-01), Lobanoff
patent: 3101200 (1963-08-01), Tracy
patent: 3285278 (1966-11-01), Corlett
patent: 3612546 (1971-10-01), Otto
patent: 4124310 (1978-11-01), Brackman et al.
patent: 4149271 (1979-04-01), Uibel et al.
patent: 4311315 (1982-01-01), Kronenborg
patent: 4384788 (1983-05-01), Lenart et al.
patent: 4609156 (1986-09-01), Boele
patent: 4728198 (1988-03-01), Maekawa
patent: 4863278 (1989-09-01), Otto
A. Stephan U. Soehne GmbH & Co.
Simone Timothy F.
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