发明专利
GB1271286A IMPROVEMENTS IN OR RELATING TO RECHARGEABLE ELECTRIC CELLS AND SEALING DEVICES THEREFOR
未知
基本信息:
- 专利标题: IMPROVEMENTS IN OR RELATING TO RECHARGEABLE ELECTRIC CELLS AND SEALING DEVICES THEREFOR
- 申请号:GB3855069 申请日:1969-07-31
- 公开(公告)号:GB1271286A 公开(公告)日:1972-04-19
- 申请人: EVER READY CO , GEOFFREY PETER KNIGHT
- 专利权人: EVER READY CO,GEOFFREY PETER KNIGHT
- 当前专利权人: EVER READY CO,GEOFFREY PETER KNIGHT
- 优先权: GB3855069 1969-07-31
- 主分类号: H01M2/12
- IPC分类号: H01M2/12
摘要:
1,271,286. Valves. EVER READY CO. (GREAT BRITAIN) Ltd., and G. P. KNIGHT. 27 April, 1970 [31 July, 1969], No. 38550/69. Heading F2V. [Also in Division H1] A sealing device for a rechargeable electric cell comprises a closure 12 having an aperture 20 therein for sealing a cell container in a gas tight manner, which aperture has a concave valve seat 19 in the upper face of closure 12 which engages the convex portion 25 of a yieldable sealing element 23a, thus closing the aperture. A retaining element 21 secured to closure 12 compresses the sealing element 23a against valve seat 19 by an amount such that the sealing element yields to permit gas escape when the gas pressure in the cell exceeds a predetermined value. As shown the sealing element 23a may be a moulded ball having an integral collar 24 around the mould line. It may also be a frusto-conical portion having a rounded tip. The sealing element may be made of neoprene, ethylene-propylene rubber, butyl rubber or polyurethane.
信息查询:
EspacenetIPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01M | 用于直接转变化学能为电能的方法或装置,例如电池组 |
------H01M2/00 | 非活性部件的结构零件或制造方法 |
--------H01M2/12 | .便于气体外泄的排气塞或其他机械装置 |