Device for lining a peripheral tube of a steam generator
November 28, 2008. 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 ReferencesMethod for servicing a steam generator Apparatus for working on tubesheets Sleeve insertion Suspension of tools for sleeving of tubes of steam generator Sleeving of tubes of steam generator Flexible tube expander extension assembly Process for remotely lining a steam generator tube of a pressurized water nuclear reactor Apparatus and method for simultaneously loading a reinforcing sleeve and mandrel into a tube Patent #: 4829648 InventorsAssigneeApplicationNo. 276846 filed on 11/28/1988US Classes:29/727, Including deforming means29/723, Nuclear device29/890.051Boiler makingExaminersPrimary: Hall, Carl E.Assistant: Cuda, Irene Attorney, Agent or FirmInternational ClassB23P 015/26Foreign Application Priority Data1986-04-30 FRAbstractA curved structure (20) with two flat side flanges and a curved bottom (23') connecting the flanges, each of which is associated with a curved guiding slide (24a,24b)is used for lining a peripheral tube of a steam generator. A trolley (21) having wheels (25, 26) interacting with the guiding slides moves in the curved structure and is guided along the inner wall of the water box of the steam generator. A rigid roller-expanding tool (24) is connected to a drive mechanism carried by the trolley by a flexible cable, and is guided by a guiding device after it leaves the curved structure. | |
