| 摘要 |
1501360 Vents for batteries SAFT-SOC DES ACCUMULATEURS FIXES ET DE TRACTION 19 Nov 1976 [21 Nov 1975] 48457/76 Heading H1B An electric cell has a deformable sealing member 3, and the can 1 has a hole 8 punched in it, at such a position that when the pressure in the cell increases above a limit, the member 3 rises and allows gas to escape through the hole 8. When the pressure drops, the member 3 reseals the hole. The cover 2 may be of metal or of plastics with a terminal extending therethrough. |
