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. 09, 2024
Filed:
Dec. 22, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Tyler J. Rattray, Woodbury, MN (US);
Mikhail L. Pekurovsky, Bloomington, MN (US);
Shawn C. Dodds, St. Paul, MN (US);
Samad Javid, Woodbury, MN (US);
James N. Dobbs, Woodbury, MN (US);
Kara A. Meyers, Oakdale, MN (US);
Ronald P. Swanson, St. Paul, MN (US);
Robert B. Secor, Woodbury, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
Methods and apparatuses for applying coatings on a moving web are provided. A coating die and a back-up roll engage with each other. The back-up roll includes a shell rotatably supported by a pressurized air layer. When a coating material is dispensed from the coating die onto the web to form a liquid coating, the pressure of the air layer is controlled such that the shell translates in space to balance forces from the air layer and the coating bead, while the web is being translated to drive the shell.