SEALED TYPE LEAD-ACID BATTERY

• Main Authors: SUGIMOTO MANSAKU, KIBE TETSUICHIROU, NODA MUNEYOSHI
• Format: Patent
• Language: English
• Published: 26.07.1989
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE:To prevent the drop off of a cap-shaped rubber valve by providing short projections at two or more places on the outside face of a pipe-shaped exhaust port and coupling a cap-shaped valve body provided with holes at positions corresponding to them with the exhaust port. CONSTITUTION:A pipe-shaped exhaust port 3 is formed at the center of a recess 2 provided on the upper face of a battery jar 1, two short projections 6 are provided on part of the outside face at a distance of 180 deg., the exhaust port is blocked with a cap-shaped rubber valve 4. Holes 7 corresponding to the projections 6 are provided on part of this rubber valve 4 and coupled with the projections 6 provided on the outside face of the exhaust port 3. The rubber valve 4 is not dropped from the exhaust port 3 even if it is pressed by the internal pressure as long as the coupling between the holes 7 and the projections A is not disengaged.