| 摘要 |
A moulded plastic container (10, 110, 310) has an open neck portion (12, 112, 212), and is adapted to have a collapsible bladder (B) inserted therein. The bladder has a metallic ferrule (F) at an open end thereof, and the ferrule is adapted to be supported at a location adjacent a rim (14, 114, 214) of the neck portion. To provide for venting from the container during the filling of the bladder, and later during the dispensing of product from it, the rim is provided with a number of spaced apart upstanding bosses (16, 116, 216) which define slots (18, 118, 218) between adjacent ends of adjacent bosses. The ferrule, thus, rests on the bosses, and air can vent beneath the ferrule and the container through the slots. The container can also vent during dispensing, even with a closure C affixed to it , by providing a radial bead (22, 122, 222) in the container with a number of longitudinally extending slots (24, 124, 224) in its exterior. Further, venting of the container, in the region between a juncture of the neck portion and a shoulder portion (26, 126, 226) and the portion of the bladder surrounded by such region can be accomplished by providing a circumferentially spaced apart series of radially outwardly projecting dimples (28, 128) and, if need be, by providing a circumferentially spaced apart number of longitudinally extending recesses (130, 230) on the inside of the open neck portion (112, 212). |
