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. 30, 1979
Filed:
Oct. 19, 1977
Donald H McClelland, Littleton, CO (US);
The Gates Rubber Company, Denver, CO (US);
Abstract
A rechargeable maintenance-free normally sealed lead-acid cell is disclosed having a multilayered electrolyte-retaining separator composed of outer highly porous and compressible microdiameter glass fibrous layers, which contact the positive and negative plates, and a sandwiched substantially dimensionally stable microporous layer having, compared with the glass fibrous layers, a substantially higher resistivity and lesser thickness. The electrolyte is proportioned within the cell and separator so that the bulk of the electrolyte in the cell is contained within the pores of the multilayered separator, and distributed between the layers of the separator in a preferred manner.