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Norman Arnold Turnquist, Mahmut Faruk Aksit, Farshad Ghasripoor, Raymond Edward Chupp: Spring-backed abradable seal for turbomachinery. General Electric Company, Penny A Clarke, Patrick K Patnode, April 15, 2003: US06547522 (40 worldwide citation)

The present invention provides, in one embodiment, an annular turbine seal for disposition in a turbine between a rotatable component having an axis of rotation and a turbine housing about the same axis of rotation. The turbine seal has a plurality of arcuate seal carrier segments that have an abrad ...


2
Yuk Chiu Lau, Farshad Ghasripoor, Robert Anthony Fusaro Jr, Raymond Edward Chupp, Donald Joseph Baldwin, Canan Uslu Hardwicke: High temperature abradable coatings. General Electric Company, Nixon & Vanderhye P C, May 3, 2005: US06887528 (31 worldwide citation)

Method of producing a profiled abradable coating on a substrate in which an abradable ceramic coating composition is applied to a substrate using direct-write technology, or plasma sprayed onto the substrate through a mask or by use of a narrow foot-print plasma gun. These methods of producing abrad ...


3
Farshad Ghasripoor, Richard K Schmid, Mitchell R Dorfman: Silicon carbide composition for turbine blade tips. Sulzer Metco, H S Ingham, December 7, 1999: US05997248 (27 worldwide citation)

A granular composition is applied to tips of rotor blades utilized in a gas turbine engine wherein the blade tips rub against an abradable ceramic layer. Individual grains each have a core of silicon carbide and a layer of aluminum nitride on the core. A layer of a cladding metal may be bonded to th ...


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Farshad Ghasripoor, Murtuza Lokhandwalla, Raymond Edward Chupp, Nitin Bhate: Sealing device and method for turbomachinery. General Electric Company, Fletcher Yoder, October 14, 2008: US07435049 (24 worldwide citation)

A compliant seal for use between rotating blades and a static shroud surrounding the rotating blades in a steam or gas turbine is disclosed. The seal includes a tip surface, substantially resistant to wear due to rubbing by the tip of the rotating blades, and an elastic biasing member, comprising a ...


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Surinder Singh Pabla, Farshad Ghasripoor, Yuk Chiu Lau, Liang Jiang, Canan Uslu Hardwicke, William Emerson Martinez Zegarra: High temperature, oxidation-resistant abradable coatings containing microballoons and method for applying same. General Electric Company, Nixon & Vanderhye P C, July 12, 2005: US06916529 (21 worldwide citation)

An abradable coating composition for use on shrouds in gas turbine engines or other hot gas path metal components exposed to high temperatures containing an initial porous coating phase created by adding an amount of inorganic microspheres, preferably alumina-ceramic microballoons, to a base metal a ...


7
Bernard Arthur Couture, Farshad Ghasripoor, Mark William Kowalczyk: Seal assembly for turbine, bucket/turbine including same, method for sealing interface between rotating and stationary components of a turbine. General Electric Company, Nixon & Vanderhye P C, February 21, 2006: US07001145 (16 worldwide citation)

A rotary machine includes a rotatable rotor, buckets radially mounted on and spaced apart about the rotor, a stationary stator/casing disposed about and radially outward from the rotor defining an annular gap between the casing and tips of the buckets, and an abradable seal member provided to the bu ...


8
Farshad Ghasripoor, Norman Arnold Turnquist, Bernard Arthur Courture, Ronald Wayne Korzun: Rotary machine sealing assembly. General Electric Company, Penny A Clarke, Patrick K Patnode, November 29, 2005: US06969231 (13 worldwide citation)

A sealing assembly for disposition in a rotary machine is disposed between a rotary component and a stationary component of the rotary machine. The sealing assembly includes at least one sealing strip affixed by caulking to one of the rotary and stationary components. An abradable portion is dispose ...


9
Yuk Chiu Lau, Farshad Ghasripoor, Dennis M Gray, Chek Beng Ng: High temperature abradable coating for turbine shrouds without bucket tipping. General Electric Co, Nixon & Vanderhye P C, December 9, 2003: US06660405 (13 worldwide citation)

An abradable coating composition for use on shrouds in gas turbine engines (or other hot gas path metal components exposed to high temperatures) containing an initial porous coating phase created by adding a “fugitive polymer” (such as polyester or polyimide) to the base metal alloy, together with a ...


10
Farshad Ghasripoor, Shorya Awtar, Norman Arnold Turnquist, Biao Fang, Carl Anthony Flecker III, James William Stegmaier, Glenn Herbert Nichols, James Charles Przytulski, Kurt Grover Brink, Richard Cohen Lykins, Jeffrey Reid Thyssen, Mahmut Faruk Aksit: Compliant seal and system and method thereof. General Electric Company, Fletcher Yoder, June 12, 2007: US07229246 (11 worldwide citation)

A compliant seal assembly for a rotating machine is provided. The seal assembly includes a static member, a movable member and a biasing member. The static member is rigidly fixed to the machine at its fore and aft ends. The movable portion has a first sealing surface configured to seal against a ro ...