The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 31, 2015

Filed:

Sep. 11, 2014
Applicant:

The Bonnot Company, Uniontown, OH (US);

Inventor:

Kurt G. Houk, Stow, OH (US);

Assignee:

The Bonnot Company, Uniontown, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/84 (2006.01); B29C 47/76 (2006.01); B29C 47/50 (2006.01);
U.S. Cl.
CPC ...
B29C 47/763 (2013.01); B29C 47/50 (2013.01);
Abstract

An extruder for feeding material and for removing gas from the fed material. The extruder includes a vent block positioned between a first and second auger. The vent block including a vent cavity having a feed end and an exit end, an inner feed ring that partially extends into said vent cavity at the feed end of the vent cavity, and a screw element rotatably positioned in the vent cavity. A front portion of the outer ring is longitudinally aligned with or overlapping the front end of the inner feed ring. The outer ring forms at least one gap or opening at or adjacent the feed end of the vent cavity to enable a vacuum to be pulled on the vent cavity as material is moved though the vent cavity from the feed end to the exit end by the screw element.


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