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:
Feb. 28, 2012
Filed:
Dec. 17, 2008
Scott R. Culler, Burnsville, MN (US);
Dwight D. Erickson, Oakdale, MN (US);
Negus B. Adefris, Woodbury, MN (US);
John T. Boden, White Bear Lake, MN (US);
John D. Haas, Roseville, MN (US);
Scott R. Culler, Burnsville, MN (US);
Dwight D. Erickson, Oakdale, MN (US);
Negus B. Adefris, Woodbury, MN (US);
John T. Boden, White Bear Lake, MN (US);
John D. Haas, Roseville, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
By controlling the process parameters and by using a polymeric production tooling having a plurality of mold cavities, different types of shaped abrasive particles selected from the group consisting of abrasive shards, dish-shaped abrasive particles, and shaped abrasive particles with an opening can be produced from the exact same mold. In one embodiment, the mold comprised a plurality of equilateral triangles and fractured precursor abrasive particles, dish-shaped precursor abrasive particles, or precursor shaped abrasive particles with an opening were produced from the same mold.