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:
Jan. 21, 2020
Filed:
Apr. 14, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Barry S. Carpenter, Oakdale, MN (US);
Jaime B. Willoughby, Hugo, MN (US);
Jennifer J. Sahlin, Minneapolis, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A method of fabricating a fuel injector nozzle comprising the steps of: (a) forming a first microstructured pattern in a first material; (b) replicating the first microstructured pattern in a second material to make a first mold comprising a second microstructured pattern in the second material; (c) replicating the second microstructured pattern in a third material to make a second mold comprising a third microstructured pattern comprising a plurality of microstructures in the third material; (d) replicating the third microstructured pattern in a metal material to make a replicated structure; and (e) removing the third material resulting in a nozzle having a plurality of through-holes through the metal material and corresponding to the plurality of microstructures in the third microstructured pattern. Each of the plurality of through-holes has a hole wall connecting a hole entry to a hole exit, and the hole wall of at least one through-hole has a side that curves from its hole entry to its hole exit.