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:
Apr. 26, 1994
Filed:
May. 27, 1992
Takao Shimizu, Kounosu, JP;
Nippon Felt Co., Ltd., Tokyo, JP;
Abstract
A magnetic marker, comprising a first fabric base sheet, a plurality of magnetized fibers attached to a surface of the first fabric base sheet by bonding means, and a second fabric base sheet secured to the surface of the first fabric base sheet so as to interpose the magnetized fibers between the first and second fabric base sheets. The magnetic marker using magnetized fibers can withstand repeated piercing which is encountered in the application for detecting the position of the ground fabric during the process of needling for the production of felt. The magnetized fibers are firmly secured between the two fabric base sheets, optionally reinforced by a multiplicity of perpendicularly arranged yarn, that the magnetized fibers can retain the capability to generate magnetic flux even after repeated use.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile