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. 27, 1993
Filed:
Jul. 15, 1991
Applicant:
Inventors:
Junji Muto, Osaka, JP;
Hironori Kitawaki, Osaka, JP;
Shoji Sugiyama, Osaka, JP;
Yasuhide Nakayama, Osaka, JP;
Katsumi Kitagawa, Osaka, JP;
Kenjiro Kishimoto, Osaka, JP;
Assignees:
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Yuasa Battery Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429247 ; 501 35 ;
Abstract
A separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr and a content of sulfer S at the surface of the glass fibers of less than 0.02% by weight, as well as a sealed lead acid battery using such a separator.