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. 01, 2022

Filed:

Mar. 27, 2019
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Keigo Yamasaki, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21B 1/08 (2006.01); D21B 1/06 (2006.01); D21B 1/10 (2006.01); D21D 1/38 (2006.01); D21D 1/18 (2006.01); D21F 9/00 (2006.01);
U.S. Cl.
CPC ...
D21B 1/08 (2013.01); D21B 1/063 (2013.01); D21B 1/10 (2013.01); D21D 1/18 (2013.01); D21D 1/38 (2013.01); D21F 9/00 (2013.01);
Abstract

A defibration processing device is capable of efficient defibration in a multiple stage rotating part, and a fibrous feedstock recycling device. The defibration processing device has a first rotating part disposed on a side into which defibration feedstock flows, and a second rotating part disposed on a side to which defibrated material defibrated in the first rotating part is discharged. The first rotating part and second rotating part each have on the axis of rotation side thereof a base, and a protruding part protruding from the base in a direction away from the axis of rotation. A spacer is between the first rotating part and second rotating part. An external restriction plate protrudes from the stationary part side toward the spacer, and an internal restriction plate protrudes from the axis of rotation side of the first rotating part and second rotating part toward the stationary part.


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