Abstract:
An improved closure for a parenteral solution bottle or the like is disclosed. The closure is of the type having a resilient plug mounted in the bottle neck and a cap anchored to the bottle neck and overlying the periphery of the disc. The cap retains a rigid, malleable disc in position overlying the plug. In accordance with this invention, the rigid, malleable disc defines an annular ridge facing and pressing against the plug to provide a pressure seal.
Abstract:
1,059,554. Seaming non-metallic sheet material. BAXTER LABORATORIES Inc. Aug. 31, 1964 [Sept. 12, 1963], No. 35510/64. Heading B5K. [Also in Division B8] A container for liquids, particularly therapeutic solutions, is formed of laminated plastics sheet so as to produce an inner layer of contents inert moisture resistant film and an outer layer of strength providing material which wholly surrounds the inner layer. This means that the inner layer is excluded from the seams. The laminate may be of polyvinylchloride and a polyhalohydrocarbon such as polychlorotrifluoroethylene which forms the inner layer. Two sheets 14, 15 may be welded together to enclose the contents, by high frequency heating whereby both films are melted simultaneously and pressure is applied by jaws such as 17, 17a to force the inner layer from the seam.