| 摘要 |
<p>A device for pressing air into inflatable articles with the aid of one larger and one smaller air container and a valve housing connected therebetween, said valve housing communicating with the article to be inflated. The valve housing is provided with two non-return valves opening up only in the direction towards the valve housing outlet to the article to be inflated, the first one of said valves being arranged at a point between the valve housing inlet opening towards the larger container and the valve housing opening towards the smaller container and the second valve being positioned at a point between said valve housing opening towards the smaller air container and the outlet towards the article to be inflated.</p> |
