Extruder transition section

Details Extruder transition section Extruder transition section

2006-08-29

2006-08-29

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With separate and distinct upstream agitating or kneading means

Within pressurizing chamber

C425S183000, C425S379100, C425S382300, C425S190000, C366S091000

Reexamination Certificate

active

07097443

ABSTRACT:
A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are compounded by compounding a filler, processing fluid and silicone polymer in a first compounding apparatus to produce a first dispersed composition and simultaneously compounding a filler, processing fluid and silicone polymer in a second compounding apparatus that shares a common extruder shaft with the first compounding apparatus to produce a second dispersed composition. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus. An extruder transition section of the system includes an enclosed discharge chamber defined by a first sectioning wall, a second sectioning wall and a contoured lower wall that transitions toward a discharge port and a shaft extends through the first sectioning wall, traverses the chamber and extends through the second sectioning wall.

REFERENCES:
patent: 3224739 (1965-12-01), Gerrit
patent: 3256562 (1966-06-01), Heard, Jr.
patent: 3577588 (1971-05-01), Chrisholm
patent: 3632256 (1972-01-01), Kasting et al.
patent: 3782870 (1974-01-01), Schippers
patent: 3824208 (1974-07-01), Link et al.
patent: 4103354 (1978-07-01), Gorbatov et al.
patent: 4118163 (1978-10-01), Lee
patent: 4443109 (1984-04-01), Watts
patent: 4528324 (1985-07-01), Change et al.
patent: 4689187 (1987-08-01), Markel et al.
patent: 4737561 (1988-04-01), Stary et al.
patent: 4898898 (1990-02-01), Fitzgerald et al.
patent: 4959186 (1990-09-01), Dollhopf et al.
patent: 5018673 (1991-05-01), Ench et al.
patent: 5153238 (1992-10-01), Bilgrien et al.
patent: 5198171 (1993-03-01), Kasahara et al.
patent: 5259671 (1993-11-01), Lowe et al.
patent: 5338112 (1994-08-01), Boden et al.
patent: 5409978 (1995-04-01), Hamada et al.
patent: 5518672 (1996-05-01), Luker
patent: 5531923 (1996-07-01), LeBlanc et al.
patent: 5573189 (1996-11-01), Ward et al.
patent: 5623028 (1997-04-01), Fitzgerald et al.
patent: 5674935 (1997-10-01), Evans et al.
patent: 5679726 (1997-10-01), Gutek et al.
patent: 5910276 (1999-06-01), Guntherberg et al.
patent: 5925709 (1999-07-01), Rauwendaal
patent: 6179459 (2001-01-01), Kobayashi et al.
patent: 6572253 (2003-06-01), Silvi et al.
patent: 0 570 387 (1992-01-01), None
patent: 0 902 057 (1999-03-01), None

Affiliated with

Also associated with

Rating

Extruder transition section does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extruder transition section, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruder transition section will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3611964