Abstract: A plastic fuel tank comprises a large main tank (1) and a small collecting tank connected to the main tank (1) by a flow-through opening (7). The collecting tank (3) is completely pulled into the underside (11) of the main tank (1), and includes vaulted lateral walls (31) which are symmetrical in all directions and expand into a bottom part (32) with an enlarged surface. The collecting tank (3) is partly surrounded by a connecting channel (8) opening from the main tank (1). The connecting channel (8) communicates with the collecting tank (3) via an admission bore (10). A nozzle (12) from the fuel return line (6) opens into the connecting channel (8) at a point opposite admission bore (10) to help propel fuel from the connecting channel (8) into the collecting tank (3).

Abstract: Plastic containers, especially of large volume, for the storage, dispensing and transportation of liquids such as milk are formed by blow-molding unitarily with handgrips and recesses permitting the engagement thereof. According to the disclosure, a parison is extruded into a blow mold and before the blow mold is closed on the parison, a lower portion thereof is distended outwardly with the outwardly expanded or distended portions being gripped by members which draw these portions laterally outwardly into auxiliary molding devices designed to shape these portions into the handgrips upon closure of the mold and the blowing of the parison to conform to the contours thereof. Thus, the grip portions are formed from extra material extruded from the extrusion head forming the parison.