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:
Dec. 05, 2023

Filed:

Aug. 23, 2021
Applicant:

Ichikawa Co., Ltd., Tokyo, JP;

Inventors:

Yasuyuki Ogiwara, Tokyo, JP;

Yuto Muraoka, Tokyo, JP;

Assignee:

Ichikawa Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 7/08 (2006.01); D21F 7/10 (2006.01);
U.S. Cl.
CPC ...
D21F 7/083 (2013.01); D21F 7/10 (2013.01);
Abstract

A papermaking felt with two or more plain weave base fabrics that can be bonded to each other. The joint portions do not open when a batt fiber layer is attached or when the felt is used. The papermaking felt can be made from an MD yarn material in the felt running direction (MD direction) and a CD yarn material in the felt cross-direction (CD direction), including a combination with two or more base fabrics directly overlapped with each other, which have a joint portion wherein the MD direction end portions are joined which include a first MD direction end portion and a second MD direction end portion wherein, with regard to the base fabrics having all included joint portions. The equations (1) and (2) below are satisfied when the maximum distance in the MD direction between the joint portions of the base fabrics is x (cm) and the minimum distance thereof is y (cm): x≤750 (1); and 51≤y (2).


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