Funnel member for single-screw extruder

Agitating – Rubber or heavy plastic working – With specified feed means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

366 79, 425208, 425209, B28C 704, B29F 302

Patent

active

044948778

ABSTRACT:
The funnel member of a single-screw extruder comprises a housing and a feed screw which passes at least partially axially therethrough and is sealed from the drive shaft by a return feed screwthread covered by a bushing which is fixed with respect to the housing. The feed screw is enveloped by a grooved sleeve having take-in grooves which are parallel to the axis and become shallower in the feeding direction. For charging the material, the funnel member is provided with an eccentric filling aperture tangential to the feed screw. To reduce torque and pressure fluctuations caused in the charged thermoplastic masses by the threads of the screw running past the single aperture, the grooved sleeve (9) is provided with take-in grooves (10, 11) over its entire circumference only in the zone upstream of the filling aperture (4) and, in the region of the filling aperture (4), is provided with take-in grooves (10) only in the part substantially radially opposite to the filling aperture (FIG. 3).

REFERENCES:
patent: 3331101 (1967-07-01), Thomas, Jr.
patent: 3666386 (1972-05-01), McElroy et al.
patent: 4408725 (1983-10-01), Wenger et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Funnel member for single-screw extruder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Funnel member for single-screw extruder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Funnel member for single-screw extruder will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-564455

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.