| 摘要 |
PCT No. PCT/GB93/00741 Sec. 371 Date Oct. 7, 1994 Sec. 102(e) Date Oct. 7, 1994 PCT Filed Apr. 7, 1993 PCT Pub. No. WO93/20317 PCT Pub. Date Oct. 14, 1993.Apparatus for actuating a safety device comprises an acoustic sensor and apparatus coupled to the sensor for actuating the safety device in response to sound of a predetermined character. Apparatus for releasing or closing a closure is also disclosed. Three embodiments of the apparatus are disclosed.
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