Pallet container

Abstract

A pallet container for the storage and transport of liquid or free-flowing goods, includes a thin-walled inner container of thermoplastic material, a tubular lattice frame closely surrounding the inner plastic container in the form of a support jacket, and a bottom pallet upon which the inner plastic container rests and with which the tubular lattice frame is securely fixed. The inner plastic container includes for withdrawal of liquid goods at the lower side, approximately in mid-section in a side wall near its bottom a blown, calibrated tubular pipe for allowing attachment of a closeable discharge fitting which is fixedly welded with its tubular housing to the calibrated tubular pipe of the inner container.

1 . A pallet container for the storage and transport of liquid or free-flowing goods, comprising a thin-walled inner container of thermoplastic material, a tubular lattice frame closely surrounding the inner plastic container in the form of a support jacket, and a bottom pallet upon which the inner plastic container rests and with which the tubular lattice frame is securely fixed, wherein the inner plastic container includes for withdrawal of liquid goods at a lower side, approximately in mid-section in a side wall near the bottom plate tubular pipe for allowing attachment of a closeable discharge fitting, wherein the discharge fitting is fixedly welded or bonded with its tubular housing to the tubular pipe of the inner plastic container. 
     
     
         2 . The pallet container of  claim 1 , wherein the discharge fitting is welded by means of a process selected from the group consisting of hot plate welding, laser welding, friction welding, ultrasonic welding, or vibration welding, to the tubular pipe of the inner plastic container. 
     
     
         3 . The pallet container of  claim 1 , wherein the housing of the discharge fitting is designed on the side of the inner plastic container as extended tubular inlet pipe with a circumferential flange ring, wherein the inlet pipe is inserted into the tubular pipe of the inner plastic container, and the flange ring is welded to an end surface of the tubular pipe. 
     
     
         4 . The pallet container of  claim 1 , wherein the housing of the discharge fitting is designed on the side of the inner plastic container as extended tubular inlet pipe with a circumferential flange ring, wherein the inlet pipe is inserted into the tubular pipe of the inner plastic container, and the flange ring is bonded to an end surface of the tubular pipe. 
     
     
         5 . The pallet container of  claim 1 , wherein the tubular pipe of the inner plastic container is provided with an outer thread and has a length of about 20 mm to 50 mm. 
     
     
         6 . The pallet container of  claim 5 , wherein the tubular pipe has a length of about 35 mm. 
     
     
         7 . The pallet container of  claim 1 , wherein the housing of the discharge fitting is designed on the side of the inner plastic container as extended tubular inlet pipe with a circumferential flange ring, wherein the inlet pipe of the discharge fitting has a length of about 20 mm to 40 mm up to the flange ring. 
     
     
         8 . The pallet container of  claim 7 , wherein the inlet pipe of the discharge fitting has a length of about 30 mm up to the flange ring. 
     
     
         9 . The pallet container of  claim 1 , wherein the tubular pipe of the inner plastic container has a slant at its end surface. 
     
     
         10 . The pallet container of  claim 7 , wherein the inlet pipe of the discharge fitting has integrated therein a support device extending transversely to a diameter of the inlet pipe. 
     
     
         11 . The pallet container of  claim 10 , wherein the support device is prefabricated as separate injection-molded part and has a ring-shaped outer rim which is securely received in the inlet pipe of the discharge fitting. 
     
     
         12 . The pallet container of  claim 1 , wherein the housing of the discharge fitting is made of electrically conducting plastic and is provided with a connection for a screwed attachment of a ground cable. 
     
     
         13 . A pallet container for the storage and transport of liquid or free-flowing goods, comprising:
 a bottom plate;   an inner container made of thermoplastic material and resting on the bottom plate, said inner container having a side wall formed with a tubular pipe approximately in mid-section thereof near the bottom plate;   a tubular lattice frame closely surrounding the inner plastic container and securely fixed to the bottom plate; and   a closeable discharge fitting non-detachably connected to the tubular pipe of the inner container.   
     
     
         14 . The pallet container of  claim 13 , wherein the discharge fitting is welded to the tubular pipe. 
     
     
         15 . The pallet container of  claim 13 , wherein the discharge fitting is bonded to the tubular pipe. 
     
     
         16 . A method of making a pallet container for the storage and transport of liquid or free-flowing goods, comprising a thin-walled inner container of thermoplastic material, a tubular lattice frame closely surrounding the inner plastic container in the form of a support jacket, and a bottom pallet upon which the inner plastic container rests and with which the tubular lattice frame is securely fixed, wherein the inner plastic container includes for withdrawal of liquid goods at a lower side, approximately in mid-section in a side wall near the bottom plate a tubular pipe for allowing attachment of a closeable discharge fitting, wherein the inner plastic container is held by a correspondingly shaped holding device which attaches to the tubular pipe, and a housing of the discharge fitting is configured with an extended tubular inlet pipe with circumferential flange ring for insertion into the tubular pipe up to the flange ring, and the end surface of the tubular pipe is welded or bonded to the flange ring by applying a respective joining pressure upon both parts. 
     
     
         17 . The method of  claim 16 , wherein the discharge fitting is connected to the inner container in a complete and pre-checked state. 
     
     
         18 . A method of making a pallet container for the storage and transport of liquid or free-flowing goods, comprising the steps of:
 placing a support device in a tubular pipe of an inner container of thermoplastic material;   providing a discharge fitting with a tubular inlet pipe having a circumferential flange ring;   inserting the inlet pipe of the discharge fitting into the tubular pipe until the flange ring bears against the tubular pipe; and   non-detachably connecting the flange ring to an end surface of the tubular pipe.   
     
     
         19 . The method of  claim 18 , wherein the flange ring is welded to the end surface of the tubular pipe. 
     
     
         20 . The method of  claim 18 , wherein the flange ring is bonded to the end surface of the tubular pipe. 
     
     
         21 . The pallet container of  claim 1 , wherein the inner plastic container and the tubular pipe are of single-piece construction.