Use of magnetics with magnetizable abrasive particles, methods, apparatuses and systems using magnetics to make abrasive articles

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12208491
APP PUB NO 20190344403A1
SERIAL NO

16478638

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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According to one embodiment, a method of making an abrasive layer on a backing is disclosed. The method can comprise: providing a distribution tool having a dispensing surface with cavities, providing a backing having a first major surface, supplying magnetizable abrasive particles to the dispensing surface such that at least one of the magnetizable abrasive particles is disposed in a respective one of the cavities, applying a magnetic field to retain the magnetizable abrasive particles disposed in the cavities, aligning the backing with the dispensing surface with the first major surface facing the dispensing surface, transferring the magnetizable abrasive particles from the cavities to the backing, sequent to or simultaneous with transferring the abrasive particles, removing or changing a magnetic field so the magnetic field no longer retains the magnetizable abrasive particles in the cavities.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eckel, Joseph B Vadnais Heights, US 77 283
Javid, Samad Woodbury, US 23 1
Jesme, Ronald D Plymouth, US 126 1314
Nienaber, Aaron K Maplewood, US 82 412

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