Drum dumper
Patent 5368433 Issued on November 29, 1994. Estimated Expiration Date: 
July 14, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 14, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2822113 3347399 3467267 3487965 3502233 3739471 3906733 Method of and apparatus for the introduction of radiocative metallic wastes into a melting furnace Waste treatment apparatus Device for unloading containers InventorAssigneeApplicationNo. 091554 filed on 07/14/1993US Classes:414/412, Rupturing or cutting type414/415, With jarring means414/421OscillatedExaminersPrimary: Bucci, David A.Attorney, Agent or FirmForeign Patent References
International ClassB65G 065/23AbstractDevices and method are disclosed for opening, e.g. by puncturing, sealed containers of materials, e.g. drums filled with toxic or hazardous substances. In one aspect a support cradle supports one or more containers and is movable to dump their contents into a discharge hopper. In one aspect containers are punctured or opened by movable spears or cutters which are movable to open the containers, preferably with personnel spaced apart from or remote from the apparatus during operation. A variety of spray devices or nozzles may be used to create fogs or protective fluid sheets or films over or about various parts of the apparatus to inhibit unwanted dispersion of material in the containers.Other References
Field of SearchWith container opening meansRupturing or cutting type With jarring means Rotary cradle Oscillated Charging a static receptacle by gravity flow from a portable load carrier Nongravity discharging means With means to handle (e.g., recirculate, remove, etc.) dust With sleeve or rest for container cut For work having hollows or passages | |
