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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.:

US 10882688 B1

PDFFull Text
Date of Patent:
Jan. 05, 2021

Filed:

May. 20, 2017

Sheet material for extraction, extraction filter, and extraction bag

Applicant:

Ohki Co., Ltd., Osaka, JP;

Inventors:

Naoko Yamaguchi, Osaka, JP;

Yoko Mitani, Osaka, JP;

Assignee:

OHKI CO., LTD., Osaka, JP;

Attorney:

Oliff PLC

Primary Examiner:

Elizabeth C Imani

Int. Cl.
CPC ...
B65D 85/808 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); D04H 3/011 (2012.01); D04H 3/016 (2012.01); A47J 31/06 (2006.01); A47J 31/18 (2006.01); B01D 11/02 (2006.01); B32B 7/14 (2006.01); B65D 85/812 (2006.01);
U.S. Cl.
CPC ...
B65D 85/808 (2013.01); A47J 31/06 (2013.01); A47J 31/18 (2013.01); B01D 11/02 (2013.01); B32B 5/022 (2013.01); B32B 5/26 (2013.01); B32B 7/14 (2013.01); B65D 85/812 (2013.01); D04H 3/011 (2013.01); D04H 3/016 (2013.01); B32B 2262/0276 (2013.01); B32B 2307/726 (2013.01); B32B 2439/46 (2013.01); B32B 2439/70 (2013.01);
Abstract

A sheet material for extraction with excellent transparency and extraction properties, is less likely to cause powder leakage, and has high modulus and excellent machine adaptability; an extraction filter; and an extraction bag. The sheet material having a first layer of a spunbonded nonwoven fabric formed from polyester-based fibers having an average diameter of 18 to 28 μm, the fabric having a basis weight of 8 to 19 g/m; and a second layer of a meltblown nonwoven fabric formed from polyester-based fibers having an average diameter of 16 to 28 μm, the fabric having a basis weight of 2 to 8 g/m, wherein the sum of the lengths of all fibers included in 1 cmof the sheet material for extraction is 3.3 to 4.8 m, and the 3% modulus is 5.5 N or higher; and an extraction filter and an extraction bag formed by this sheet material for extraction.

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Yamaguchi, Naoko. (2021). Sheet material for extraction, extraction filter, and extraction bag (U.S. Patent No. 10882688). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10882688

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