Storage container for liquids and method of producing the outer container of the storage container
AssigneeSchütz GmbH & Co. KGaA
InventorUdo Schutz
Life of this patent
Estimating the term…
Abstract
A storage container for liquids has a blow-molded plastic inner container, which has four sidewalls, a bottom, and a convex top with various connecting sockets. A blow-molded plastic outer container is formed by four sidewalls, a bottom, and a removable, convex plastic cover with corresponding through-holes for the connections of the inner container and serves to make the inner container leakproof. An outer cage consists of metal grating bars. Finally, a pallet-like support base is made of metal for standing and moving the storage container by forklift or similar handling equipment.
Claims9
A storage container for liquid, comprising:
- a plastic inner container which is fillable with the liquid and has four sidewalls, a bottom, and a top that has a filler connection, a drain connection, a vent connection, and a connection for inserting a level indicator;
- a blow-molded plastic outer container that holds the inner container for leakproofness of the inner container, the outer container having four sidewalls, a bottom and a removable cover, which has corresponding through-holes for the filler connection, the drain connection, the vent connection, and the connection for the level indicator of the inner container;
- a metal, pallet-like support base, the cover having a cover edge that is drawn down, encloses an upper opening edge of the outer container, and has clamping elements formed on it for fastening the cover on the opening edge of the outer container, the opening edge being provided with corresponding holding devices;
- and an outer cage that consists of vertical and horizontal grating bars made of metal and is mounted on the metal support base.
A method of producing an outer container for a storage container for liquid which has a plastic inner container which is fillable with the liquid and has four sidewalls, a bottom, and a top that has a filler connection, a drain connection, a vent connection, and a connection for inserting a level indicator, the outer container, a metal, pallet-like support base, and an outer cage that consists of vertical and horizontal grating bars made of metal and is mounted on the metal support base, the method comprising the steps of:
- blow molding of a body of the outer container with four sidewalls, a bottom, and a convex top with a displaced, flat, horizontal, or slightly outwardly sloped marginal strip from an extruded plastic parison, such that the marginal strip turns into four upper, inwardly displaced marginal sections of the four sidewalls of the body of the outer container via a frame-like edge with four marginal sections running parallel to the sidewalls of the body of the outer container and four inwardly curved, narrow connecting sections, such that the frame-like edge of the top projects outwardly a small distance beyond the upper marginal sections of the four sidewalls of the body of the outer container;
- and, after the blow-molded body of the outer container has cooled, separating the top, which forms the cover of the outer container by cutting out the connecting sections from the closed, blow-molded body of the outer container.
Dependencies are inferred from the claim text.