1
Longzhi Jiang
Evangelos Trifon Laskaris, Yu Wang, Timothy John Havens, Longzhi Jiang: Open superconductive magnet having a cryocooler coldhead. General Electric Company, Marvin Snyder, Douglas E Stoner, March 13, 2001: US06201462 (13 worldwide citation)

An open magnet has vertically aligned first and second assemblies each with at least one superconductive main coil. At least one support member is vertically aligned and attached to, the first and second assemblies. At least one cryocooler coldhead is aligned generally horizontally and has a housing ...


2
Longzhi Jiang
Evangelos Trifon Laskaris, James Pellegrino Alexander, Paul St Mark Shadforth Thompson, Tao Zhang, William Chen, Longzhi Jiang: Cooling system and method for cooling superconducting magnet devices. General Electric Company, The Small Patent Law Group, Evan Reno Sottriou, Marie Claire B Maple, February 12, 2013: US08374663 (2 worldwide citation)

A cooling system and method for cooling superconducting magnet coils are provided. One magnet system for a superconducting magnet device includes a cooling system having at least one coil support shell, a plurality of superconducting magnet coils supported by the at least one coil support shell and ...


3
Longzhi Jiang
Longzhi Jiang, Evangelos Trifon Laskaris, John Scaturro Jr, William Einziger, John Arthur Urbahn, Kathleen Melanie Amm, Jalal Zia, In Hua Xu: System and method for self-sealing a coldhead sleeve of a magnetic resonance imaging system. General Electric Company, The Small Patent Law Group, Dean D Small, October 29, 2013: US08570043

Systems and methods for self-sealing a coldhead sleeve of a magnetic resonance imaging system are provided. One coldhead sleeve arrangement includes a coldhead sleeve configured to receive therein a coldhead of an MRI system and having an open end. The coldhead sleeve arrangement also includes a sea ...


4
Longzhi Jiang
Evangelos Trifon Laskaris, James Pellegrino Alexander, Paul St Mark Shadforth Thompson, Tao Zhang, William Chen, Longzhi Jiang: Cooling system and method for cooling superconducting magnet devices. August 2, 2012: US20120196753-A1

A cooling system and method for cooling superconducting magnet coils are provided. One magnet system for a superconducting magnet device includes a cooling system having at least one coil support shell, a plurality of superconducting magnet coils supported by the at least one coil support shell and ...


5
Longzhi Jiang
Longzhi Jiang, Evangelos Trifon Laskaris, John Scaturro JR, William Einziger, John Arthur Urbahn, Kathleen Melanie Amm, Jalal Zia, In Hua Xu: System and method for self-sealing a coldhead sleeve of a magnetic resonance imaging system. April 5, 2012: US20120081117-A1

Systems and methods for self-sealing a coldhead sleeve of a magnetic resonance imaging system are provided. One coldhead sleeve arrangement includes a coldhead sleeve configured to receive therein a coldhead of an MRI system and having an open end. The coldhead sleeve arrangement also includes a sea ...


6
Robert Adolph Ackermann, Kenneth Gordon Herd, Evangelos Trifon Laskaris, John Eric Tkaczyk, Kenneth Wilbur Lay, Richard Andrew Ranze: Ceramic superconducting lead resistant to moisture and breakage. General Electric Company, Douglas E Erickson, Marvin Snyder, November 25, 1997: US05691679 (28 worldwide citation)

A superconductive lead assembly for a superconductive device (e.g., magnet) cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end flexibly, dielectrically, and thermally connected to the first stage and a second end flexibly, dielectrica ...


7
Evangelos Trifon Laskaris, Paul Shadforth Thompson, Yu Wang: Superconductive magnet including a cryocooler coldhead. General Electric Company, Donald S Ingraham, Douglas E Stoner, June 12, 2001: US06246308 (27 worldwide citation)

A magnet, such as an open or closed magnet, has a first assembly with at least one superconductive main coil and with a first vacuum enclosure enclosing the main coil(s). A first cryocooler coldhead has a rigid first housing and is generally vertically aligned. A first flexible bellows is vertically ...


8
Evangelos Trifon Laskaris, Michael Anthony Palmo, Bu Xin Xu: Open superconductive magnet having shielding. General Electric Company, Douglas E Erickson, Marvin Synder, March 16, 1999: US05883558 (26 worldwide citation)

An open superconductive magnet useful in magnetic resonance imaging (MRI) applications. The magnet has two spaced-apart assemblies and preferably has a "C" shape. Each assembly has: a vacuum enclosure having a longitudinal axis and surrounding a bore; a magnetizable pole piece located within the bor ...


9
Evangelos Trifon Laskaris, Robert Adolph Ackermann, Yu Wang: Cryogenic cooling refrigeration system for rotor having a high temperature super-conducting field winding and method. General Electric Company, Nixon & Vanderhye P C, August 27, 2002: US06438969 (26 worldwide citation)

A cooling fluid system is disclosed for providing cryogenic cooling fluid to a high temperature super-conducting rotor comprising: a re-circulation compressor; a storage tank having a second cryogenic fluid; an inlet line connecting the re-circulation compressor to the storage tank and to the rotor, ...


10
Evangelos Trifon Laskaris, Michael Anthony Palmo, Kathleen Melanie Amm, Paul Shadforth Thompson: Permanent magnet assembly and method of making thereof. General Electric Company, Foley & Lardner, February 25, 2003: US06525634 (25 worldwide citation)

An imaging apparatus, such as an MRI system, contains at least one layer of soft magnetic material between the yoke and each permanent magnet. This imaging apparatus may be operated without pole pieces due to the presence of the soft magnetic material. The permanent magnets may be fabricated by magn ...



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