| 摘要 |
1,086,400. Batteries. DOUGLAS AIRCRAFT CO. Inc. Sept. 10, 1965 [Sept. 11, 1964], No. 38843/65. Heading H1B. Excess pressure in a battery is reduced by feeding evolved gases to a fuel cell and there reacting them. The electricity thus produced may give a warning signal. Water formed in the cell may be returned to the battery. |
