Patents by Inventor Yatin Tayalia
Yatin Tayalia 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).
-
Patent number: 10583400Abstract: Membrane elements that use multiple membrane leaves may have a limited total active membrane area due to an increased diameter at the ends of the element. Membrane leaves may comprise a permeate carrier positioned between one or more membrane sheets. Adhesive may be used to seal one or more edges of the membrane leaf. The membrane sheets, permeate carrier and the adhesive contribute to the thickness of the edges of the membrane leaf and the diameter at the ends of the element. A reduced thickness of the edges of the permeate carrier may reduce the diameter at the ends of an element. Another permeate carrier sheet may also be used that is distanced from at least one edge of the membrane sheet so the permeate carrier sheet does not contribute towards the increased diameter at the ends of the element.Type: GrantFiled: November 10, 2016Date of Patent: March 10, 2020Assignee: BL TECHNOLOGIES, INC.Inventors: Prashant Vishwanath Shrikhande, Steven John Harrold, Cha Moua, Phillip Goebel, Yatin Tayalia, Prasanna Rao Dontula
-
Patent number: 9675937Abstract: A permeate carrier to be described in detail below has side edges, alternatively called borders, that are thinner than a central part of the permeate carrier. Adhesive is applied to the side edges to form a seal when a membrane leaf is formed around the permeate carrier. After the membrane leaf is wound around a central tube, the side edges extend in a spiral around the central tube. The transition between the side edges and the central part of the permeate carrier helps prevent adhesive from flowing into the central part of the permeate carrier. The reduced thickness of the side edges also reduces an increase in diameter at the ends of an element that might otherwise be caused by the adhesive.Type: GrantFiled: October 19, 2011Date of Patent: June 13, 2017Assignee: General Electric CompanyInventors: Prasanna Rao Dontula, Yatin Tayalia, Phillip Goebel
-
Publication number: 20170056829Abstract: Membrane elements that use multiple membrane leaves may have a limited total active membrane area due to an increased diameter at the ends of the element. Membrane leaves may comprise a permeate carrier positioned between one or more membrane sheets. Adhesive may be used to seal one or more edges of the membrane leaf. The membrane sheets, permeate carrier and the adhesive contribute to the thickness of the edges of the membrane leaf and the diameter at the ends of the element. A reduced thickness of the edges of the permeate carrier may reduce the diameter at the ends of an element. Another permeate carrier sheet may also be used that is distanced from at least one edge of the membrane sheet so the permeate carrier sheet does not contribute towards the increased diameter at the ends of the element.Type: ApplicationFiled: November 10, 2016Publication date: March 2, 2017Inventors: Prashant Vishwanath SHRIKHANDE, Steven John HARROLD, Cha MOUA, Phillip GOEBEL, Yatin TAYALIA, Prasanna Rao DONTULA
-
Patent number: 9522363Abstract: Membrane elements that use multiple membrane leaves may have a limited total active membrane area due to an increased diameter at the ends of the element. Membrane leaves may comprise a permeate carrier positioned between one or more membrane sheets. Adhesive may be used to seal one or more edges of the membrane leaf. The membrane sheets, permeate carrier and the adhesive contribute to the thickness of the edges of the membrane leaf and the diameter at the ends of the element. A reduced thickness of the edges of the permeate carrier may reduce the diameter at the ends of an element. Another permeate carrier sheet may also be used that is distanced from at least one edge of the membrane sheet so the permeate carrier sheet does not contribute towards the increased diameter at the ends of the element.Type: GrantFiled: May 16, 2012Date of Patent: December 20, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Prashant Vishwanath Shrikhande, Steven John Harrold, Cha Moua, Phillip Goebel, Yatin Tayalia, Prasanna Rao Dontula
-
Patent number: 8577626Abstract: Methods and systems for assessing fluid dynamics aspects of corrosion and shear stress in piping networks are provided. Shear stress hot spots of a piping network may be identified using non-dimensional transfer functions that have been developed for identifying the magnitude and location of these local maxima depending upon the geometrical parameters of commonly used components of piping networks, the fluid properties of the flow, and the operating conditions of the piping network. Upon identification of potential shear stress local maxima, piping network operators may monitor these locations for corrosion or other damage to prevent loss of integrity of the pipes.Type: GrantFiled: July 22, 2008Date of Patent: November 5, 2013Assignee: General Electric CompanyInventors: Jitendra Kumar Gupta, Muralidharan Lakshmipathy, Yatin Tayalia
-
Publication number: 20130146532Abstract: A feed channel spacer for use in a spiral wound membrane element provides a series of generally parallel interior channels. The interior channels extend from an inlet side of the spacer to an outlet side of the spacer, but follow an undulating or zigzagging path. Dean's vortices or other flow patterns that cause mixing reduce concentration polarization. The feed channel spacer is made by pressing a sheet of thermoplastic material in a die.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Prasanna Rao DONTULA, Yatin TAYALIA, Upen Jayant BHARWADA
-
Publication number: 20130146540Abstract: A spiral would membrane element has a feed channel spacer providing a tortuous feed flow path through an open spacer mesh material. The feed flow path may force the feed liquid to flow across substantially all of an adjacent membrane surface. The length of the flow path and average cross-flow velocity are increased relative to a straight flow path. A rise in pressure drop that might otherwise be produced by the increased average cross-flow velocity is reduced by the open spacer mesh. In a system having two or more upstream and downstream spiral wound membrane elements, a downstream element may have a feed channel spacer providing a tortuous flow path while an upstream element has a feed channel spacer providing a less tortuous flow path or a straight flow path.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Prasanna Rao DONTULA, Yatin TAYALIA, Upen Jayant BHARWADA
-
Publication number: 20130146531Abstract: A feed channel spacer for a spiral wound membrane element has inlet and outlet edges that are thinner than the rest of the spacer material. The edges may be made thinner, for example, by passing the edges of a sheet of feed spacer material through a pair of hot rollers or by compressing the edges of the sheet in a heated press. The thinned edges of the feed spacer material are located in the element between glue lines applied to the permeate spacers of the element. The thin edges allow a greater membrane surface area to be provided in a given element diameter. A feed channel spacer may also have an area with obstructions to create micro-mixing effects. These obstructions may be provided on a feed spacer sheet of constant thickness, or one with thin edges.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Yatin TAYALIA, Prasanna Rao DONTULA, Upen Jayant BHARWADA
-
Publication number: 20130101797Abstract: A permeate carrier to be described in detail below has side edges, alternatively called borders, that are thinner than a central part of the permeate carrier. Adhesive is applied to the side edges to form a seal when a membrane leaf is formed around the permeate carrier. After the membrane leaf is wound around a central tube, the side edges extend in a spiral around the central tube. The transition between the side edges and the central part of the permeate carrier helps prevent adhesive from flowing into the central part of the permeate carrier. The reduced thickness of the side edges also reduces an increase in diameter at the ends of an element that might otherwise be caused by the adhesive.Type: ApplicationFiled: October 19, 2011Publication date: April 25, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Prasanna Rao DONTULA, Yatin TAYALIA, Phillip GOEBEL
-
Publication number: 20130098829Abstract: A permeate carrier for a spiral wound membrane element has two or three layers, for example of tricot construction. The two outer, or only, layers resist movement of the membrane sheet into permeate channels in the permeate carrier. The total thickness of the permeate carrier sheet may be similar to the thickness of typical tricot permeate carrier sheets. The permeate carrier sheet may be coated to make its surfaces hydrophilic. The coating may be, for example, a cross-linked polyvinyl alcohol (PVA) or polyvinyl pyrrolidone (PVP). In the spiral wound element, a permeate carrier sheet may be wrapped in one or more layers around a central tube. Channels in the permeate carrier sheet are oriented helically relative to a longitudinal axis of the central tube.Type: ApplicationFiled: October 19, 2011Publication date: April 25, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Prasanna Rao DONTULA, Yatin TAYALIA, Upen Jayant BHARWADA, Jayaprakash Sandhala RADHAKRISHNAN, Muralidhar PATNAM
-
Publication number: 20130098831Abstract: Membrane elements that use multiple membrane leaves may have a limited total active membrane area due to an increased diameter at the ends of the element. Membrane leaves may comprise a permeate carrier positioned between one or more membrane sheets. Adhesive may be used to seal one or more edges of the membrane leaf. The membrane sheets, permeate carrier and the adhesive contribute to the thickness of the edges of the membrane leaf and the diameter at the ends of the element. A reduced thickness of the edges of the permeate carrier may reduce the diameter at the ends of an element. Another permeate carrier sheet may also be used that is distanced from at least one edge of the membrane sheet so the permeate carrier sheet does not contribute towards the increased diameter at the ends of the element.Type: ApplicationFiled: May 16, 2012Publication date: April 25, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Prashant Vishwanath SHRIKHANDE, Steven John HARROLD, Cha MOUA, Phillip GOEBEL, Yatin TAYALIA, Prasanna Rao DONTULA
-
Publication number: 20120228208Abstract: An interconnector coupling permeate conduits in a filtration apparatus includes a diverging section. The diverging section defines a generally increasing cross sectional area for the permeate solution exiting the interconnector in a direction of flow from the permeate conduit of a first separation element to a permeate conduit of a second separation element. The diverging section provides a more gradual divergence of the permeate solution to reduce pressure losses.Type: ApplicationFiled: March 11, 2011Publication date: September 13, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Yatin TAYALIA, Prasanna Rao DONTULA, Upen J. BHARWADA
-
Publication number: 20120067808Abstract: A filtration apparatus includes plurality of membrane modules arranged in series in a chamber. The membrane modules include at least one lead membrane module closer to an inlet port than the remaining membrane modules. A device coupled to the permeate collection conduit of the at least one lead membrane module is configured to apply a back pressure to permeate solution flowing in the permeate collection conduit of the at least one lead membrane module. By applying a back pressure, flux imbalance may be reduced within the apparatus.Type: ApplicationFiled: September 16, 2010Publication date: March 22, 2012Inventors: Yatin TAYALIA, Prasanna Rao DONTULA, Upen J. BHARWADA
-
Patent number: 7931813Abstract: A process to reduce or prevent biofouling, by destroying or deactivating microbiological content of feedwater, or other liquid, prior to its entrance into membranes or process equipment, such as heat transfer equipment. The process comprises the use of electrical discharge and/or electric fields to destroy microbes that result in the biofouling of surfaces. By destroying the microbiological content of the water the microbiology no longer is able to create a restricting biofilm upon or within said process equipment.Type: GrantFiled: December 14, 2007Date of Patent: April 26, 2011Assignee: General Electric CompanyInventors: Thangavelu Asokan, Setu Chokshi, Yuseph Montasser, David M. Polizzotti, Yatin Tayalia
-
Patent number: 7818156Abstract: A method includes assessing corrosion in a refinery operation having a piping network. Assessing can include identifying in a petroleum sample a presence and an amount of a species determined to be potentially corrosive to corrodible equipment in a refinery. A corrosion risk presented by the presence, the amount, and the boiling point of the species is determined. And, the corrosion risk is evaluated in view of piping network information. A system for implementing the method is provided, also.Type: GrantFiled: November 5, 2007Date of Patent: October 19, 2010Assignee: General Electric CompanyInventors: Pramod Vachhani, Sunil Shirish Shah, Collin Wade Cross, Yatin Tayalia, Nishith Pramod Vora, Raghunandan Murthy
-
Patent number: 7813894Abstract: A methodology and system is disclosed which addresses outstanding needs of refiners to process cheaper crudes or blends of crudes. This method and system comprises a number of steps, including characterizing the impact of various constituents in the crude which result in fouling of heat exchangers; estimating model parameters; monitoring and predicting qualitative and quantitative performance; and determining optimal dosage of chemical treatments.Type: GrantFiled: December 14, 2006Date of Patent: October 12, 2010Assignee: General Electric CompanyInventors: Vijaysai Prasad, Yatin Tayalia, Sunil Shirish Shah, Collin W. Cross
-
Publication number: 20100023276Abstract: Methods and systems for assessing fluid dynamics aspects of corrosion and shear stress in piping networks are provided. Shear stress hot spots of a piping network may be identified using non-dimensional transfer functions that have been developed for identifying the magnitude and location of these local maxima depending upon the geometrical parameters of commonly used components of piping networks, the fluid properties of the flow, and the operating conditions of the piping network. Upon identification of potential shear stress local maxima, piping network operators may monitor these locations for corrosion or other damage to prevent loss of integrity of the pipes.Type: ApplicationFiled: July 22, 2008Publication date: January 28, 2010Applicant: General Electric CompanyInventors: Jitendra Kumar Gupta, Muralidharan L., Yatin Tayalia
-
Publication number: 20090152207Abstract: A process to reduce or prevent biofouling, by destroying or deactivating microbiological content of feedwater, or other liquid, prior to its entrance into membranes or process equipment, such as heat transfer equipment. The process comprises the use of electrical discharge and/or electric fields to destroy microbes that result in the biofouling of surfaces. By destroying the microbiological content of the water the microbiology no longer is able to create a restricting biofilm upon or within said process equipment.Type: ApplicationFiled: December 14, 2007Publication date: June 18, 2009Inventors: Thangavelu ASOKAN, Setu Chokshi, Yuseph Montasser, David M. Polizzotti, Yatin Tayalia
-
Patent number: 7528214Abstract: A method for producing a transparent article comprises the steps of melt transesterifying a monomer mixture in the presence of a transesterification catalyst to produce a hydroquinone polycarbonate copolymer product comprising greater than 45 mole percent of structural units derived from the hydroquinone. The monomer mixture comprises a hydroquinone, at least one aromatic dihydroxy compound other than the hydroquinone, and a carbonic acid diester. The hydroquinone polycarbonate copolymer product is then heated to a highest processing temperature of 5° C. to 20° C. above a maximum melting melt temperature for the hydroquinone copolymer product for a sufficient period of time to render the hydroquinone polycarbonate copolymer product transparent upon cooling to ambient temperature; and cooling the hydroquinone polycarbonate copolymer product to produce the transparent article.Type: GrantFiled: October 28, 2005Date of Patent: May 5, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventors: Gautam Chatterjee, Patrick J. McCloskey, Warren W. Reilly, William D. Richards, Subash Scindia, Gokul Srinivasan, Yatin Tayalia
-
Publication number: 20080257782Abstract: A method includes assessing corrosion in a refinery operation having a piping network. Assessing can include identifying in a petroleum sample a presence and an amount of a species determined to be potentially corrosive to corrodible equipment in a refinery. A corrosion risk presented by the presence, the amount, and the boiling point of the species is determined. And, the corrosion risk is evaluated in view of piping network information. A system for implementing the method is provided, also.Type: ApplicationFiled: November 5, 2007Publication date: October 23, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Pramod Vachhani, Sunil Shirish Shah, Collin Wade Cross, Yatin Tayalia, Nishith Pramod Vora, Raghunandan Murthy