Patents by Inventor Mark O. Derakhshan
Mark O. Derakhshan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10042015Abstract: A dual-purpose displacer for adjusting a liquid cryogen level in a cryostat, the dual-purpose displacer includes a displacer wall having an exterior displacer surface and an interior displacer surface. The interior displacer surface defines a displacing chamber configured to contain a first portion of liquid cryogen. The exterior displacer surface is configured to displace a second portion of liquid cryogen contained in a cryogenic chamber of the cryostat. The dual-purpose displacer is disposed within the cryogenic chamber of the cryostat and configured to transfer the first portion of liquid cryogen contained within the displacing chamber to the cryogenic chamber.Type: GrantFiled: October 30, 2015Date of Patent: August 7, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Dogan Celik, Mark O. Derakhshan, Peter Jarvis, Yuri Lvovsky, Stuart Paul Feltham
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Publication number: 20170123025Abstract: A dual-purpose displacer for adjusting a liquid cryogen level in a cryostat, the dual-purpose displacer includes a displacer wall having an exterior displacer surface and an interior displacer surface. The interior displacer surface defines a displacing chamber configured to contain a first portion of liquid cryogen. The exterior displacer surface is configured to displace a second portion of liquid cryogen contained in a cryogenic chamber of the cryostat. The dual-purpose displacer is disposed within the cryogenic chamber of the cryostat and configured to transfer the first portion of liquid cryogen contained within the displacing chamber to the cryogenic chamber.Type: ApplicationFiled: October 30, 2015Publication date: May 4, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: DOGAN CELIK, MARK O. DERAKHSHAN, PETER JARVIS, YURI LVOVSKY, STUART PAUL FELTHAM
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Publication number: 20110101003Abstract: A low-profile shipping system for shipping an object without a pallet includes a shipping crate configured to surround the object being shipped. The shipping crate is configured to substantially enclose the object being shipped. The shipping crate defines a first passageway and a second passageway. The first passageway and the second passageway are adapted to receive a fork of a forklift. The low-profile shipping system also includes a shipping rail attached to the inside of the shipping crate at a location above the first passageway and the second passageway. The shipping rail is adapted to support the weight of the object and the shipping crate while the object is being transported by forklift.Type: ApplicationFiled: November 3, 2009Publication date: May 5, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: William Louis Einziger, Ronald Floyd Lochner, James Grayland McLeod, Mark O. Derakhshan, Robert Arthur Belinski, Timothy Elden Wise
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Patent number: 6496564Abstract: An x-ray system with an x-ray generating device having improved heat dissipation capabilities. The x-ray generating device includes an x-ray tube mounted in a casing holding a circulating, cooling medium. According to the present invention, the x-ray generating device includes a support mechanism mounted within the x-ray generating device in a manner for adjustably positioning, relative to the casing, the focal spot alignment path of generated x-rays. Additionally, the x-ray generating device includes a cooling mechanism having an inlet chamber for channeling the cooling medium within the support mechanism. Additionally, a cooling stem may be positioned within the inlet chamber to increase the heat exchange surface area exposed to the cooling medium. Thus, the present invention advantageously increases the heat dissipation capability of the x-ray generating device.Type: GrantFiled: April 17, 2001Date of Patent: December 17, 2002Assignee: General Electric CompanyInventors: Michael J. Price, Mark O. Derakhshan, Wayne F. Block, Charles B. Kendall
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Publication number: 20010014139Abstract: An x-ray system comprising an x-ray generating device having improved heat dissipation capabilities is disclosed. The x-ray generating device comprises an x-ray tube mounted in a casing holding a circulating, cooling medium. According to the present invention, the x-ray generating device comprises a support mechanism mounted within said x-ray generating device in a manner for adjustably positioning, relative to the casing, the focal spot alignment path of generated x-rays. Additionally, the x-ray generating device comprises a cooling mechanism comprising an inlet chamber for channeling the cooling medium within said support mechanism. Additionally, a cooling stem may be positioned with the inlet chamber to increase the heat exchange surface area exposed to the cooling medium. Thus, the present invention advantageously increases the heat dissipation capability of the x-ray generating device.Type: ApplicationFiled: April 17, 2001Publication date: August 16, 2001Inventors: Michael J. Price, Mark O. Derakhshan, Wayne F. Block, Charles B. Kendall
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Patent number: 6249569Abstract: An x-ray system with an x-ray generating device having improved heat dissipation capabilities. The x-ray generating device has an x-ray tube mounted in a casing holding a circulating, cooling medium. According to the present invention, the x-ray generating device includes a support mechanism mounted within the x-ray generating device in a manner for adjustably positioning, relative to the casing, the focal spot alignment path of generated x-rays. Additionally, the x-ray generating device includes a cooling mechanism having an inlet chamber for channeling the cooling medium within the support mechanism. Additionally, a cooling stem may be positioned within the inlet chamber to increase the heat exchange surface area exposed to the cooling medium. Thus, the present invention advantageously increases the heat dissipation capability of the x-ray generating device.Type: GrantFiled: December 22, 1998Date of Patent: June 19, 2001Assignee: General Electric CompanyInventors: Michael J. Price, Mark O. Derakhshan, Wayne F. Block, Charles B. Kendall
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Patent number: 6212753Abstract: A method is used for interfacing materials of dissimilar thermal expansion in an X-ray tube. Initially, a first joint is identified, which has an inner component to be received into an outer component. Typically, the inner component has a higher coefficient of expansion than the outer component, so the purpose of the invention is to reduce the physical expansion of that component in the joint. A plurality of slots is introduced along the approximate axial length of the inner component of the joint, to achieve the aforementioned purpose. Alternatively, a coupling member could be provided between two components, the coupling member having a thermal expansion rate greater than one component and less than the other component.Type: GrantFiled: November 25, 1997Date of Patent: April 10, 2001Assignee: General Electric CompanyInventors: Mark O. Derakhshan, Thomas G. Ebben
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Patent number: 6192107Abstract: A system and method are proposed for cooling the anode of an X-ray tube. A bearing shaft associated with the anode has an associated single rotating seal there around, and contains a liquid metal. A primary liquid metal flow path is used to transfer heat from the anode, and a secondary liquid metal flow path is provided to seal the single rotating seal. Accordingly, the present invention provides an effective means for containing liquid metal in the bearing shaft of an anode assembly, and using the liquid metal to cool the anode of the X-ray tube.Type: GrantFiled: March 24, 1999Date of Patent: February 20, 2001Assignee: General Electric CompanyInventors: Michael J. Price, Paul E. Neitzke, Mark E. Vermilyea, Douglas J. Snyder, Carey S. Rogers, Eti Ganin, Mark O. Derakhshan, Stephen S. Waite
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Patent number: 6173996Abstract: A method is used for interfacing materials of dissimilar thermal expansion in an X-ray tube. Initially, a first joint is identified, which has a first component to be received into a second component. Typically, the first component has a higher coefficient of expansion than the second component, so the purpose of the invention is to reduce the physical expansion of that component in the joint. A plurality of slots is introduced along the approximate axial length of a coupling member at the joint, to achieve the aforementioned purpose. The coupling member is provided between the two components, and has a thermal expansion rate greater than one component and less than the other component.Type: GrantFiled: December 29, 1999Date of Patent: January 16, 2001Assignee: General Electric CompanyInventors: Mark O. Derakhshan, Thomas G. Ebben
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Patent number: 5838762Abstract: A method for assembling a rotating X-ray tube structure ensures balance retention during the life of the tube. The X-ray tube structure has a cathode for emitting electrons, and a rotor and a bearing assembly for facilitating rotation of an anode. At least one joint is identified in the X-ray tube structure and interference fit assembly is used to eliminate shifts at the joint. The interference fit assembly is particularly advantageous for eliminating even the minutest shifts in the main joints of the anode assembly. Interference fit assembly can be applied between the rotor and the anode target to provide a first joint having balance retention; and interference fit assembly can be applied between the bearing assembly and the rotor to provide a second joint having balance retention.Type: GrantFiled: December 11, 1996Date of Patent: November 17, 1998Assignee: General Electric CompanyInventors: Eti Ganin, Mark O. Derakhshan, Thomas G. Ebben