公开(公告)号：US3773111A

公开(公告)日：1973-11-20

申请号：US3773111D

申请日：1971-04-05

申请人： DUNN B

发明人： DUNN B

IPC分类号： A62C3/00 ,  A62C3/04 ,  A62C13/26

CPC分类号： A62C3/006 ,  A62C3/008 ,  A62C3/04

摘要： An automatic fire extinguishing apparatus in which a pyrotechnic wire or cord is stretched above the area to be protected, and leads to a fire extinguisher mounted adjacent the area to be protected. The fire extinguisher includes a propellant container operatively connected to the pyrotechnic cord and containing a suitable material adapted to generate gas pressure, plug means closing the propellant container and removable as a result of the burning of the pyrotechnic cord and an outer container having a propellant container mounted therein and containing a suitable fire extinguishing material such as carbon tetrachloride or sodium carbonate, the outer container also having a plurality of apertures oriented such that the entire area to be protected will be blanketed by the fire extinguishing material when the fire extinguishing material is forced through the apertures under pressure and frangible sealing means covering the apertures and adapted to rupture when the propellant applies sufficient pressure to the fire extinguishing material in the outer container. The extinguishing apparatus is particularly useful for Class B fires and is conveniently mounted in a range hood over a cooking range, beneath the hood of an automobile, as an ornament at the top of a Christmas tree, in a laboratory hood over a laboratory bench or as a self-contained unit above a furnace, an air conditioning motor or the like.

摘要翻译： 一种自动灭火装置，其中烟火线或绳索被拉伸在待保护区域上方，并且通向安装在待保护区域附近的灭火器。 灭火器包括可操作地连接到烟火线并且包含适于产生气体压力的合适材料的推进剂容器，封闭推进剂容器的插塞装置和由于烟火线的燃烧而可移除的外壳以及具有推进剂容器 安装在其中并含有合适的灭火材料如四氯化碳或碳酸钠，外容器还具有多个孔，其定向成使得当灭火材料被迫时，待保护的整个区域将被灭火材料覆盖 通过压力下的孔口和覆盖孔的易碎密封装置，并且当推进剂向外容器中的灭火材料施加足够的压力时适于破裂。 灭火装置特别适用于B类火灾，并且方便地安装在烹饪范围，汽车罩下方的抽油烟机，圣诞树顶部的装饰物，实验室工作台上的实验室护罩中 作为炉子上方的独立单元，空调电动机等。