Apparatus for degassing molten metal
Patent 4744545 Issued on May 17, 1988. Estimated Expiration Date: 
February 3, 2007. 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.
February 3, 2007. 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 ReferencesGas injection method Method and apparatus for the removal of impurities from molten metal Patent #: 4177066 InventorAssigneeApplicationNo. 07/010463 filed on 02/03/1987US Classes:266/227, By separating metal in a molten mass from undesired material, e.g., slag266/218, Having fluid inlet formed in vessel wall, e.g., tuyere266/233By stirring or mixing molten metalExaminersPrimary: Rutledge, L. DewayneAssistant: McDowell, Robert L. Attorney, Agent or FirmInternational ClassesC22B 9/00 (20060101)C22B 9/05 (20060101) C22B 21/06 (20060101) C22B 21/00 (20060101) AbstractApparatus includes a chamber with an inner and outer sidewall wherein fluxing gas inlets are provided on the inner sidewall and a space is provided between the inner and outer sidewall with a heating element and an air space between the heating element and the inner sidewall for providing uniform heating of the inner sidewall. | |
