Patents by Inventor Dewan Shamsuz Zaman
Dewan Shamsuz Zaman 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: 9346009Abstract: A column structure is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure comprises at least one vessel having an elongate upright wall structure to define an absorption process volume for the containment of high surface area packing and for the countercurrent flow of absorbent liquid reagent and target gas in use; and a column perimeter structure comprising an elongate upright wall structure disposed around the at least one vessel in such manner that an inner wall of the elongate upright wall structure and an outer wall of a vessel cooperably define and fluidly enclose at least one secondary fluid volume fluidly isolated from the absorption process volume(s). A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.Type: GrantFiled: November 23, 2011Date of Patent: May 24, 2016Assignee: DOOSAN BABCOCK LIMITEDInventor: Dewan Shamsuz Zaman
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Patent number: 9283516Abstract: A column structure is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure comprises a plurality of vessel column modules each having an elongate upright wall structure, each column module comprises a plurality of vertically disposed sub-modules, the modules being disposed together alongside one another in two dimensional array to constitute collectively the column structure. A column top support structure is located in the vicinity of the upper part of a column structure so assembled and each column module is mechanically supported from the column top support structure. A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.Type: GrantFiled: November 23, 2011Date of Patent: March 15, 2016Assignee: DOOSAN BABCOCK LIMITEDInventor: Dewan Shamsuz Zaman
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Publication number: 20150241054Abstract: A support structure for a boiler envelope, for example being the boiler envelope of a boiler thermal plant, a boiler structure so supported, and a method of supporting a boiler, are described. The support structure includes a support platform structure, comprising a part of the primary load bearing boiler cold structure for the boiler envelope, and adapted to engage with and thereby carry at least a major part of the static load of the boiler envelope.Type: ApplicationFiled: September 27, 2013Publication date: August 27, 2015Inventor: Dewan Shamsuz Zaman
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Patent number: 8960652Abstract: A column structure (1) for the containment of high surface area packing (5) and absorbent liquid reagent for the removal of a target gas from a gas stream having an elongate upright wall structure defining a perimeter comprising a closed simple polygon or closed simple curve; a support structure extending inwardly from the perimeter of the column towards the top thereof; and slung tensile members (16) attached to the wall structure of the top support structure and extending downwardly to support at least internal column structure within the walls of the column.Type: GrantFiled: November 24, 2010Date of Patent: February 24, 2015Assignee: Doosan Babcock LimitedInventor: Dewan Shamsuz Zaman
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Publication number: 20130319237Abstract: A column structure is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure comprises a plurality of vessel column modules each having an elongate upright wall structure, each column module comprises a plurality of vertically disposed sub-modules, the modules being disposed together alongside one another in two dimensional array to constitute collectively the column structure. A column top support structure is located in the vicinity of the upper part of a column structure so assembled and each column module is mechanically supported from the column top support structure. A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.Type: ApplicationFiled: November 23, 2011Publication date: December 5, 2013Applicant: DOOSAN POWER SYSTEMS UK LIMITEDInventor: Dewan Shamsuz Zaman
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Publication number: 20130312608Abstract: A column structure is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure comprises at least one vessel having an elongate upright wall structure to define an absorption process volume for the containment of high surface area packing and for the countercurrent flow of absorbent liquid reagent and target gas in use; and a column perimeter structure comprising an elongate upright wall structure disposed around the at least one vessel in such manner that an inner wall of the elongate upright wall structure and an outer wall of a vessel cooperably define and fluidly enclose at least one secondary fluid volume fluidly isolated from the absorption process volume(s). A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.Type: ApplicationFiled: November 23, 2011Publication date: November 28, 2013Applicant: DOOSAN POWER SYSTEMS UK LIMITEDInventor: Dewan Shamsuz Zaman
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Publication number: 20130069254Abstract: A column structure (1) for the containment of high surface area packing (5) and absorbent liquid reagent for the removal of a target gas from a gas stream having an elongate upright wall structure defining a perimeter comprising a closed simple polygon or closed simple curve; a support structure extending inwardly from the perimeter of the column towards the top thereof; and slung tensile members (16) attached to the wall structure of the top support structure and extending downwardly to support at least internal column structure within the walls of the column.Type: ApplicationFiled: November 24, 2010Publication date: March 21, 2013Inventor: Dewan Shamsuz Zaman
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Patent number: 8333170Abstract: A buckstay system is described comprising horizontal buckstays for the walls of a steam generator, for example in plural vertically space assemblies tied with vertical buckstays, in which a buckstay extends generally horizontally across each wall such as to form a connected pair with an adjacent buckstay at each corner; an elongate tie bar formation extends across each wall such as to form a fixedly mounted pair with an adjacent tie bar formation at each corner; an anchor assembly associated with each buckstay and providing engagement means by which each buckstay engages with a respective tie bar; and each horizontal buckstay is split to comprise at least two rigid elongate buckstay elements mounted together to be relatively slideable in a buckstay longitudinal direction.Type: GrantFiled: December 23, 2008Date of Patent: December 18, 2012Assignee: Doozan Babcock Energy America, LLCInventor: Dewan Shamsuz Zaman
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Publication number: 20100154726Abstract: A buckstay system is described comprising horizontal buckstays for the walls of a steam generator, for example in plural vertically space assemblies tied with vertical buckstays, in which a buckstay extends generally horizontally across each wall such as to form a connected pair with an adjacent buckstay at each corner; an elongate tie bar formation extends across each wall such as to form a fixedly mounted pair with an adjacent tie bar formation at each corner; an anchor assembly associated with each buckstay and providing engagement means by which each buckstay engages with a respective tie bar; and each horizontal buckstay is split to comprise at least two rigid elongate buckstay elements mounted together to be relatively slideable in a buckstay longitudinal direction.Type: ApplicationFiled: December 23, 2008Publication date: June 24, 2010Inventor: Dewan Shamsuz Zaman