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:
Jun. 15, 2021
Filed:
Aug. 12, 2015
3m Innovative Properties Company, St. Paul, MN (US);
Nhat Ha Thi Nguyen, Woodbury, MN (US);
Thomas J. Xue, Woodbury, MN (US);
Seyed A. Angadjivand, Los Angeles, CA (US);
Ronald W. Ausen, St. Paul, MN (US);
William J. Kopecky, Hudson, WI (US);
Mark T. Gibson, Stillwater, MN (US);
Olof N. Hansson, Varnamo, SE;
Joseph P. Kronzer, Shoreview, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.