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公开(公告)号:US06666226B2
公开(公告)日:2003-12-23
申请号:US10020843
申请日:2001-12-13
IPC分类号: F17D104
CPC分类号: F17C13/04 , F17C7/00 , F17C2205/0142 , F17C2205/0146 , F17C2205/0382 , F17C2221/011 , F17C2260/036 , F17C2270/0189 , Y10T137/4673 , Y10T137/469 , Y10T137/4857 , Y10T137/87917
摘要: A reliable and economical apparatus for relieving pressure in a large aircraft cabin oxygen supply, where multiple oxygen cylinders are used concurrently. A series-parallel array of valves actuated by changes in differential pressure between the oxygen supply and the ambient cabin atmosphere provides overpressure relief The series connection of the valves reduces the risk of open-valve failures, while the parallel connection of sets of series-connected valves reduces the risk of closed-valve failures. The small number of valves used in its design reduces the cost of the apparatus. The series-parallel structure is optionally extended to larger numbers of valves to facilitate the use of less-expensive valves and supporting components without loss of reliability.
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公开(公告)号:US3990757A
公开(公告)日:1976-11-09
申请号:US639866
申请日:1975-12-11
申请人: Lawrence H. Gill
发明人: Lawrence H. Gill
CPC分类号: A62B18/084
摘要: A connecting device is adapted to releasably hold a portion of a first object, such as a pilot's oxygen mask, to a portion of a second object, such as a pilot's helmet. The connecting device broadly includes an anchor member mounted on the mask, a housing member mounted on the helmet and having a female passageway, a male member adapted to be inserted into the female passageway, and a cable member having one marginal end portion secured to the anchor member and another marginal end portion secured to the male member. The housing member has a toothed pawl section biased to move into the female passageway. The male member has a ratchet rack adapted to engage the pawl section to prevent unintended separation of the male member from the female passageway. The male member includes a release member movably mounted relative to the rack, and having an operative surface adapted to extend beyond the rack teeth. The release member may be selectively moved relative to the rack to disengage the mating teeth of the rack and pawl section to permit the male member to be withdrawn from the female passageway.
摘要翻译: 连接装置适于将第一物体(例如飞行员的氧气掩模)的一部分可释放地保持在第二物体(例如驾驶员头盔)的一部分上。 连接装置广泛地包括安装在掩模上的锚固构件,安装在头盔上的壳体构件,并且具有阴通道,适于插入阴通道中的阳构件和电缆构件,该构件具有固定到 锚固构件和固定到阳构件的另一边缘端部。 壳体构件具有被偏压以移动到阴通道中的齿形棘爪部分。 阳构件具有适于接合棘爪部分的棘轮架,以防止阳构件与阴通道的意外分离。 阳构件包括相对于齿条可移动地安装的释放构件,并且具有适于延伸超过齿条齿的操作表面。 释放构件可以相对于齿条选择性地移动以使齿条和棘爪部分的配合齿脱离,以允许阳构件从阴通道中取出。
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