Counter-rotating twin screw extruder

Details Counter-rotating twin screw extruder Counter-rotating twin screw extruder

2011-03-24

2011-12-20

Cooley, Charles E (Department: 1774)

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

C366S081000, C366S084000

Reexamination Certificate

active

08079747

ABSTRACT:
A screw extruder having a body forming a chamber of two barrels housing two counter-rotating axis-parallel rotors, a supply port for the material to be mixed in the chamber at one end of the body, a discharge port for discharging the mixed material at the other end of the body, a conveying section with screws for feeding the material from the supply port downstream to a mixing section which comprises at least two mixing zones, each mixing zone having at least one forward-conveying wing and at least one backward-conveying wing downstream of the forward-conveying wing on each rotor characterized in that a throttle valve is provided in the chamber downstream of the mixing section, and downstream of the throttle valve a second conveying section with screws and a second mixing section are provided.

REFERENCES:
patent: 3070836 (1963-01-01), De Haven et al.
patent: 3360824 (1968-01-01), Schippers
patent: 3419250 (1968-12-01), Brennan, Jr.
patent: 3565403 (1971-02-01), Matsuoka
patent: 3661363 (1972-05-01), Aletti
patent: 3700374 (1972-10-01), Matsuoka et al.
patent: 3764118 (1973-10-01), Matsuoka
patent: 3802670 (1974-04-01), Okada et al.
patent: 3829067 (1974-08-01), Matsuoka
patent: 3869111 (1975-03-01), Matsuoka
patent: 3870285 (1975-03-01), Bausch et al.
patent: 3923291 (1975-12-01), Matsuoka et al.
patent: 3981658 (1976-09-01), Briggs
patent: 4025058 (1977-05-01), Mizuguchi
patent: 4103355 (1978-07-01), Weber
patent: 4136968 (1979-01-01), Todd
patent: 4310251 (1982-01-01), Scharer et al.
patent: 4332481 (1982-06-01), Inoue et al.
patent: 4380397 (1983-04-01), Hashizume et al.
patent: 4462691 (1984-07-01), Boguslawski
patent: 4542992 (1985-09-01), Markhart
patent: 4678339 (1987-07-01), Peiffer et al.
patent: 4681457 (1987-07-01), Orimo et al.
patent: 4707139 (1987-11-01), Valenzky et al.
patent: 4744669 (1988-05-01), Kowalczyk et al.
patent: 4752135 (1988-06-01), Loomans
patent: 4752139 (1988-06-01), Hauck
patent: 4776784 (1988-10-01), Batiuk
patent: 4826323 (1989-05-01), Loomans et al.
patent: 5145251 (1992-09-01), Shirato et al.
patent: 5180225 (1993-01-01), Piccolo et al.
patent: RE34172 (1993-02-01), Gwinn et al.
patent: 5259671 (1993-11-01), Lowe et al.
patent: 5273356 (1993-12-01), Piccolo et al.
patent: 5335991 (1994-08-01), Wobbe
patent: 5382089 (1995-01-01), Mosher
patent: 5487602 (1996-01-01), Valsamis et al.
patent: 5494965 (1996-02-01), Harlin et al.
patent: 5593227 (1997-01-01), Scheuring et al.
patent: 5672005 (1997-09-01), Fukui et al.
patent: 5855432 (1999-01-01), Inoue et al.
patent: 5863117 (1999-01-01), Gheorghita
patent: 5909958 (1999-06-01), Rauwendaal
patent: 6068466 (2000-05-01), Morita
patent: 6179459 (2001-01-01), Kobayashi et al.
patent: 6238079 (2001-05-01), Watada et al.
patent: 6280074 (2001-08-01), Kuroda et al.
patent: 6386748 (2002-05-01), Huber et al.
patent: 6390666 (2002-05-01), Schafer et al.
patent: 6409373 (2002-06-01), Tanaka et al.
patent: 6607299 (2003-08-01), Bacher et al.
patent: 7004616 (2006-02-01), Murakami et al.
patent: 7097345 (2006-08-01), Ueda et al.
patent: 7350960 (2008-04-01), Ziegenfus et al.
patent: 7419295 (2008-09-01), Inoue et al.
patent: 7566163 (2009-07-01), Inoue
patent: 7637650 (2009-12-01), Ueda et al.
patent: 7802915 (2010-09-01), Yamada et al.
patent: 2004/0257903 (2004-12-01), Ueda et al.
patent: 2006/0007777 (2006-01-01), Ziegenfus et al.
patent: 2007/0109911 (2007-05-01), Neubauer
patent: 2007/0237022 (2007-10-01), Wiltz et al.
patent: 2007/0237850 (2007-10-01), Wiltz et al.
patent: 2009/0122636 (2009-05-01), Yamane et al.
patent: 2009/0175120 (2009-07-01), Rokey et al.
patent: 2009/0213681 (2009-08-01), Ek et al.
patent: 2011/0085408 (2011-04-01), Neubauer
patent: 1048433 (2001-01-01), None
patent: 1048433 (2002-10-01), None
patent: 5631433 (1981-03-01), None
patent: 5636633 (1981-10-01), None
patent: 56136632 (1981-10-01), None
patent: 56136633 (1981-10-01), None
patent: 02099305 (1990-04-01), None
patent: 02120006 (1990-05-01), None
patent: 02263609 (1990-10-01), None
patent: 04014412 (1992-01-01), None
patent: 04022606 (1992-01-01), None
patent: 04022607 (1992-01-01), None
patent: 04156932 (1992-05-01), None
patent: 06047734 (1994-02-01), None
patent: 10235636 (1998-09-01), None
patent: 10305422 (1998-11-01), None
patent: 2000309017 (2000-11-01), None
patent: 9815591 (1998-04-01), None
patent: 9951649 (1999-10-01), None
patent: 0001765 (2000-01-01), None
patent: 0022040 (2000-04-01), None
patent: 0114122 (2001-03-01), None
patent: 02063345 (2002-08-01), None
patent: 02063345 (2002-09-01), None
patent: 03047839 (2003-06-01), None
patent: 2004101674 (2004-11-01), None

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