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.
Patent No.:
Date of Patent:
May. 24, 2022
Filed:
Jan. 24, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27N 3/04 (2006.01); B27N 3/18 (2006.01); D04H 1/72 (2012.01); D21B 1/06 (2006.01); D21F 11/00 (2006.01);
U.S. Cl.
CPC ...
B27N 3/18 (2013.01); B27N 3/04 (2013.01); D04H 1/72 (2013.01); D21B 1/063 (2013.01); D21F 11/00 (2013.01);
Abstract
A sheet manufacturing apparatus includes a coarse crushing portion that crushes a raw material containing a fiber into coarse crushed pieces, a defibrating portion that defibrates the coarse crushed pieces into a defibrated material, a sieve portion that includes a plurality of openings, a sheet forming portion that uses the defibrated material passing through the opening of the sieve portion to form a sheet, and a transport passage that transports the defibrated material, which has not passed through the opening of the sieve portion, between the coarse crushing portion and the defibrating portion.