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:
Sep. 22, 2026
Filed:
May. 29, 2020
Johns Manville, Denver, CO (US);
Zhihua Guo, Ottawa Hills, OH (US);
Richard Thomas Hausman, Waterville, OH (US);
Souvik Nandi, Highlands Ranch, CO (US);
Johns Manville, Denver, CO (US);
Abstract
A multilayer non-woven mat for a lead-acid battery includes a first layer of non-woven web of fibers including coarse fibers having an average fiber diameter from about 6 μm to about 25 μm and a second layer of non-woven web of fibers including microfibers having an average diameter from about 0.5 μm to about 5 μm. The multilayer non-woven mat includes a binder configured to simultaneously bind the coarse fibers in the first layer together, the microfibers in the second layer together, and at least some of the coarse fibers in the first layer to at least some of the microfibers in the second layer together. The first layer is configured to absorb an active material of an electrode of the lead acid battery, and the second layer is configured to block the active material of the electrode from passing through the non-woven glass mat.