Abstract: A valve box adapter formed of plastics material is provided by molding as a unit an interior member. The valve box cover is elevated by the adapter from the old pavement level to a new pavement level. Plastics are utilized which will not melt at the application temperature of asphalt but will soften somewhat to conform more precisely to the configuration of the adapter cover. A plurality of adapters may be used in multiple applications to enable the continuous use of the original valve box cover as a plurality of asphalt levels are added over a period of time.

Abstract: Apparatus for controllably transferring fluid from a pierceable pressurized container includes a valve body, a stem member which is threadably connected to the valve body at one end and a fluid-conducting hose at the other end, and an elastomeric valve ball disposed in a cavity between the body and the stem member. The valve ball controls fluid flow from the container through the valve body and stem member to the hose in response to rotation of the valve stem relative to the body. Simultaneously, the valve balls acts as a check valve to prevent flow of fluid to the container. An O-ring seal between the stem and the valve body is adapted to leak at high pressure and bleed off fluid.