Abstract: A blow molding method manufactures a sealed container and fills the container with a substance. The container body is connected to a head or top. A part of the head can be detached for opening of the container. A segment of an extruded tube is mounted in a blow mold having an axially movable mold base. The diameter of the extruded tube is slightly greater than the diameter of the head or top. Following the closing of the tube end forming the bottom of the container, air is blown into the tube and simultaneously the mold base is moved toward the top jaws of the blow mold forming the head. After filling of the container and possibly mounting of an insert body into the top segment of the tube forming the container head or top, the mold base is moved still further in the direction of the top jaws, until the container is free of air. Then, the head is formed and is sealed securely with the outer surface of the insert body.
Abstract: A container for delivery of flowable material has a plastic, deformable container body which can be compressed in its longitudinal direction and a neck of smaller diameter attached to one body end with formation of a projection. The delivery through the neck projection corresponds to the volume diminution obtained by the length reduction of the body, for quantitative regulation of the material delivered through the neck. A cup-shaped bushing has its floor engaged on a shoulder projection of the body. The bushing floor has a passage opening for the neck. A piston is slidable in the bushing until it contacts the bushing floor. An indicator arrangement makes a visible indication of the movement path of the piston in the bushing.
Abstract: A blow molding method manufactures a sealed container and fills the container with a substance. The container body is connected to a head or top. A part of the head can be detached for opening of the container. A segment of an extruded tube is mounted in a blow mold having an axially movable mold base. The diameter of the extruded tube is slightly greater than the diameter of the head or top. Following the closing of the tube end forming the bottom of the container, air is blown into the tube and simultaneously the mold base is moved toward the top jaws of the blow mold forming the head. After filling of the container and possibly mounting of an insert body into the top segment of the tube forming the container head or top, the mold base is moved still further in the direction of the top jaws, until the container is free of air. Then, the head is formed and is sealed securely with the outer surface of the insert body.