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:
Aug. 25, 2015
Filed:
Sep. 14, 2012
Joseph Israel, St. Louis Park, MN (US);
Eugene F Dunn, Iii, Coon Rapids, MN (US);
Jon D Joriman, Little Canada, MN (US);
Jeremy T Exley, Eden Prairie, MN (US);
Andrew Dallas, Lakeville, MN (US);
Joseph Israel, St. Louis Park, MN (US);
Eugene F Dunn, III, Coon Rapids, MN (US);
Jon D Joriman, Little Canada, MN (US);
Jeremy T Exley, Eden Prairie, MN (US);
Andrew Dallas, Lakeville, MN (US);
DONALDSON COMPANY, INC., Bloomington, MN (US);
Abstract
A filter medium for use in filtering a mobile fluid made from at least a bicomponent fiber. Other fibers, particles, or other materials can also be entrained in the filter medium. The filter medium has a substantial thickness compared to filters of the prior art. The fiber length and diameter dimensions are selected to obtain desired filter characteristics including thickness, basis weight, pore size, filtration efficiency, pressure drop, burst strength, and manufacturing efficiency. Further, a multilayer filter medium can be provided with ease. Each layer can have a different composition, pore size, basis weight, and so forth, thus providing the ability to build multiple functionality into the filter media of the invention.