Agitating – Rubber or heavy plastic working – Stationary mixing chamber
Patent
1983-09-14
1984-11-06
Simone, Timothy F.
Agitating
Rubber or heavy plastic working
Stationary mixing chamber
277 59, 277134, 366139, 366307, 366315, B01F 710
Patent
active
044809239
ABSTRACT:
Novel rotary processors including sealing means to control leakage of pressure and/or material between processing passages which are maintained at significantly different pressure levels. The processors comprise a rotatable element carrying a plurality of annular channels and a stationary element providing a coaxial closure surface operationally arranged with the channels to provide enclosed processing passages. Each passage includes inlet means, outlet means and a channel blocking member all associated with the stationary element and arranged and adapted so that material fed to the inlet can be carried forward by the rotatable channel walls to the blocking member for discharge from the passage. The passages are interconnected by material transfer grooves formed in the closure surface.
A sealing groove is carried by the rotor surface portion between two adjacent passages maintained at significantly different pressure levels, such as by evacuating one of the two adjacent passages, and is open to the clearance between the rotor and the closure surface. A gate at the inlet to the downstream passage pressurizes the material in the transfer passage interconnecting the two passages, and forces pressurized material into the sealing groove as it passes under the transfer groove. An obstructing surface extending into the sealing groove at the transfer groove reinforces the pressure in the sealing groove so that the material in the sealing groove contacts the closure surface about the entire circumference of the sealing groove, forming a continuous live O-ring seal in the clearance between the passages.
REFERENCES:
patent: 3331101 (1967-07-01), Thomas
patent: 4207004 (1980-06-01), Hold et al.
patent: 4289319 (1981-09-01), Hold et al.
patent: 4300842 (1981-11-01), Hold et al.
Craig Frances J. P.
Simone Timothy F.
USM Corporation
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