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:
Apr. 15, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
James M Watt, Piedmont, SC (US);
Deborah K Lickfield, Easley, SC (US);
Assignee:
Fiberweb North America, Inc., Simpsonville, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B / ; A62B / ; D04H / ;
U.S. Cl.
CPC ...
428219 ; 55528 ; 55DI / ; 12820612 ; 156 624 ; 264D / ; 42831111 ; 42831151 ; 4283155 ; 428338 ; 428903 ; 442400 ;
Abstract
A nonwoven disposable face mask includes a filtration layer formed of a plurality of thermoplastic microfine meltblown microfibers having an average fiber diameter of less than 1.5 microns. The filtration layer also has a basis weight of less than ten grams per square meter. The resultant face mask provides improved wearer comfort and barrier and filtration properties.