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:
Mar. 20, 2012
Filed:
Jul. 18, 2005
Jonathan M. Lise, Woodbury, MN (US);
Jean Le Normand, Versailles, FR;
Gerhard Lohmeier, Cologne, DE;
Jonathan M. Lise, Woodbury, MN (US);
Jean Le Normand, Versailles, FR;
Gerhard Lohmeier, Cologne, DE;
3m Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of making an abrasive article comprising an abrasive disc () of non-woven fibres having a central shaft () and a hub () securing the shaft () to the abrasive disc (). The method comprising forming the hub () by injecting molten thermoplastic material into the abrasive disc (), and allowing the thermoplastic material to cool and solidify such that the shaft () is secured to the abrasive disc (). The invention provides a simple, economical and effective method of securing a shaft to a disc.