| 摘要 |
An adaptor assembly has a housing member having a flange intermediate a first coupling portion and a second coupling portion. An internal member is at least partially disposed within the housing. An air escape channel having an air entry and air exit is at least partially by the internal member. A filling channel having a filling orifice and an exit is at least partially by said internal member. A plurality of vents open through a surface of the housing, the vents are in fluid communication with a hollow formed by the housing. A valve having a valve stem and head in the housing. The valve has a closed position wherein the head is in sealing engagement with a surface of the housing. In the closed position said head seals off the filling orifice but does not seal off said air escape channel. |
