公开(公告)号：US3741812A

公开(公告)日：1973-06-26

申请号：US3741812D

申请日：1971-11-03

Applicant: ESB INC

Inventor： SANDEN G ,  SPELLMAN P ,  OLTMAN J

IPC: H01M2/04 ,  H01M2/12 ,  H01M21/00

CPC classification number: H01M2/1264 ,  H01M2/0413 ,  H01M2/0421 ,  H01M2/12

Abstract: A HOLE IN THE TOP OF A BATTERY IS COVERED BY A GAS PERVIOUS, LIQUID IMPERVIOUS MEMBER SECURED TO THE INTERIOR SURFACE OF THE TOP IN A MANNER WHICH PROVIDES A LIQUID-TIGHT CLOSURE AROUND THE HOLE. THE GAS PERVIOUS LIQUID IMPERVIOUS MEMBER MAY BE EXTENDED TO AND AROUND THE EDGE OF THE TOP WHERE IN IS CRIMPED BY THE CONTAINER AND WHERE IT FUNCTIONS AS A GROMMET TO PROVIDE A LIQUIDTIGHT CLOSURE AROUND THE PERIMETER OF THE TOP. THE GAS PERVIOUS, LIQUID IMPERVIOUS MEMBER MAY BE CRIMPED BETWEEN THE TOP AND AN ELECTRICALLY CONDUCTIVE CURRENT COLLECTOR WHICH IS SECURED TO THE TOP. CONSTRUCTIVE ARE ILLUSTRATED IN WHICH THE GAS PERVIOUS, LIQUID IMPERIOUS MEMBER IS ELECTRICALLY NONCONDUCTIVE, WHILE OTHER CONSTRUCTIONS ARE SHOWN IN WHICH THE MEMBER IS CONDUCTIVE.