| 摘要 |
1412499 Foam generators CHUBB FIRE SECURTY LTD 11 Sept 1974 [23 Oct 1973] 49352/73 Heading B1C [Also in Division A5] The apparatus of the main patent is modified by the provision of a tube 118, providing an air intake path between apertures 135 therein and the air entrainment apertures 136; whereby, when the apparatus is installed in the floor of an aircraft hanger the air intake apertures being higher above the ground, there is reduced likelihood of spilied liquid fuel entering the air entrainment apertures, and a layer and more efficient foam generating path can be provided by positioning the apertures 136 at the bottom of the tube 112. |
