Flexible three-piece seal assembly
Patent 5154577 Issued on October 13, 1992. Estimated Expiration Date: 
January 17, 2011. 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.
January 17, 2011. 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 187762 2915280 3062499 3519366 3542483 3728041 3752598 3754766 Turbine seal and vane damper Temperature actuated turbine seal InventorsAssigneeApplicationNo. 642739 filed on 01/17/1991US Classes:415/170.1, BEARING, SEAL, OR LINER BETWEEN RUNNER PORTION AND STATIC PART277/641, Groove structure on the seal or part277/930, SEAL INCLUDING HEATING OR COOLING FEATURE415/134INCLUDING THERMAL EXPANSION JOINTExaminersPrimary: Kwon, John T.Attorney, Agent or FirmInternational ClassF01D 005/20AbstractA three-piece seal assembly is disclosed for sealing cooling air leakage between circumferentially spaced-apart flowpath segments in gas turbine engines. First and second seals are disposed in oppositely facing slots on adjacent flowpath segments, and extend between adjacent flowpath segments to restrict cooling flow between the segments. A third seal member having first and second leg portions in abutting engagement with the first and second seals restricts leakage flow between the gap between the first and second seals.Field of SearchWITH PASSAGE IN BLADE, VANE, SHAFT OR ROTARY DISTRIBUTOR COMMUNICATING WITH WORKING FLUIDWITH DIVERSELY ORIENTED INLET OR ADDITIONAL INLET FOR DIVERSE FLUID (E.G., HEATING, COOLING OR MIXED WORKING FLUID, ETC.) BEARING, SEAL, OR LINER BETWEEN RUNNER PORTION AND STATIC PART INCLUDING THERMAL EXPANSION JOINT Resilient Radially sliding Stator vane in shroud ring opening And axial or circumferential expansion Circumferentially spaced nozzle or stator segments | |
