Patents by Inventor Fernando Prieto
Fernando Prieto 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: 12359735Abstract: A spring stop arrangement for a check valve may include: a check seat defining a flow path; a clapper assembly connected to the check seat and configured to obstruct the flow path, the clapper assembly including: a clapper; and a seal retainer detachably mounted to the clapper; a cam arm connected to the check seat, the cam arm including a stopper; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm against the direction of fluid flow. When the seal retainer is dismounted from the clapper, the stopper may be configured to contact the check seat so as to prevent rotation of the cam arm.Type: GrantFiled: September 18, 2023Date of Patent: July 15, 2025Assignee: Acorn Engineering Company, Inc.Inventors: Edward Barry Knoles, Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
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Patent number: 12292123Abstract: A check valve may include: a check seat defining a flow path; a clapper assembly hingedly connected to the check seat and configured to obstruct the flow path, including: a clapper and a seal retainer detachably mounted to the clapper; a first extension extending from the clapper assembly in an upstream direction and having a roller; a cam arm rotatable relative to the clapper assembly and configured to engage with the roller; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm in the upstream direction. The biasing force may be imparted to the clapper assembly via the cam arm and roller, so that the clapper assembly obstructs the flow path.Type: GrantFiled: September 18, 2023Date of Patent: May 6, 2025Assignee: Acorn Engineering Company, Inc.Inventors: Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
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Patent number: 11976736Abstract: A backflow prevention device includes a main pipe body extending along a first center longitudinal axis, at least one check valve disposed within the main pipe body, an inlet pipe connected to an inlet side of the main pipe body, and an outlet pipe connected to an outlet side of the main pipe body. The inlet pipe and the outlet pipe extend along a second center longitudinal axis. The first center longitudinal axis is offset with respect to the second center longitudinal axis in a direction perpendicular to the first and second center longitudinal axes. A center of the valve seat of the at least one check valve is offset with respect to the second center longitudinal axis in the direction perpendicular to the first and second longitudinal axes.Type: GrantFiled: July 20, 2022Date of Patent: May 7, 2024Assignee: Acorn Engineering Company, Inc.Inventors: Pui Yuen Ng, Luis Fernando Prieto, Adrian Alexander Filip, Alan Long Thien Du, Edward Barry Knoles
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Publication number: 20240093795Abstract: A check valve may include: a check seat defining a flow path; a clapper assembly hingedly connected to the check seat and configured to obstruct the flow path, including: a clapper and a seal retainer detachably mounted to the clapper; a first extension extending from the clapper assembly in an upstream direction and having a roller; a cam arm rotatable relative to the clapper assembly and configured to engage with the roller; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm in the upstream direction. The biasing force may be imparted to the clapper assembly via the cam arm and roller, so that the clapper assembly obstructs the flow path.Type: ApplicationFiled: September 18, 2023Publication date: March 21, 2024Inventors: Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
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Publication number: 20240093794Abstract: A check valve may include: a check seat defining a flow path and including downstream and upstream sides; a poppet assembly including a poppet body and a poppet seat, the poppet seat configured to form a fluid-tight seal with the downstream side; at least one first extension extending upstream from the poppet body and including a roller; and at least one cam arm disposed at least partially upstream of the poppet body and the check seat and configured to engage with the at least one roller; and at least one cam arm disposed at least partially upstream of the poppet body and the check seat and configured to engage with the at least one roller. Engagement between the at least one cam arm and the at least one roller is configured to urge the poppet in the upstream direction.Type: ApplicationFiled: September 18, 2023Publication date: March 21, 2024Inventor: Luis Fernando Prieto
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Publication number: 20240093796Abstract: A spring stop arrangement for a check valve may include: a check seat defining a flow path; a clapper assembly connected to the check seat and configured to obstruct the flow path, the clapper assembly including: a clapper; and a seal retainer detachably mounted to the clapper; a cam arm connected to the check seat, the cam arm including a stopper; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm against the direction of fluid flow. When the seal retainer is dismounted from the clapper, the stopper may be configured to contact the check seat so as to prevent rotation of the cam arm.Type: ApplicationFiled: September 18, 2023Publication date: March 21, 2024Inventors: Edward Barry Knoles, Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
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Patent number: 11826177Abstract: The present invention falls within the field of medical diagnosis, more particularly in the field of computational methods for headache diagnosis. In short, the invention consists of an intelligent headache management system that comprises a plurality of remote modules connected with at least one analysis module, the remote modules being responsible for the collection of information related to the user and said information collection is carried out by at least one information collection device connected to said remote module. The information is transmitted to an analysis module, which comprises means to store and process the information transmitted by the remote module. The results from the computational processing of said information are transmitted to at least one remote module, being available to the user.Type: GrantFiled: March 9, 2021Date of Patent: November 28, 2023Inventor: Mario Fernando Prieto Peres
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Publication number: 20230025349Abstract: A backflow prevention device includes a main pipe body extending along a first center longitudinal axis, at least one check valve disposed within the main pipe body, an inlet pipe connected to an inlet side of the main pipe body, and an outlet pipe connected to an outlet side of the main pipe body. The inlet pipe and the outlet pipe extend along a second center longitudinal axis. The first center longitudinal axis is offset with respect to the second center longitudinal axis in a direction perpendicular to the first and second center longitudinal axes. A center of the valve seat of the at least one check valve is offset with respect to the second center longitudinal axis in the direction perpendicular to the first and second longitudinal axes.Type: ApplicationFiled: July 20, 2022Publication date: January 26, 2023Inventors: Pui Yuen Ng, Luis Fernando Prieto, Adrian Alexander Filip, Alan Long Thien Du, Edward Barry Knoles
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Publication number: 20220110591Abstract: The present invention falls within the field of medical diagnosis, more particularly in the field of computational methods for headache diagnosis. In short, the invention consists of an intelligent headache management system that comprises a plurality of remote modules connected with at least one analysis module, the remote modules being responsible for the collection of information related to the user and said information collection is carried out by at least one information collection device connected to said remote module. The information is transmitted to an analysis module, which comprises means to store and process the information transmitted by the remote module. The results from the computational processing of said information are transmitted to at least one remote module, being available to the user.Type: ApplicationFiled: March 9, 2021Publication date: April 14, 2022Inventor: Mario Fernando Prieto PERES
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Publication number: 20180332328Abstract: Novel tools and techniques are provided for implementing conflict resolution for electronic program guides. In various embodiments, a computing system might receive a plurality of metadata each from a metadata source among a plurality of metadata sources, each of the metadata corresponding to a video content, might compile the plurality of metadata, might determine whether at least one metadata of the plurality of metadata is inconsistent with other metadata of the plurality of metadata. Based on a determination that at least one metadata is inconsistent with other metadata, the computing system might analyze the plurality of metadata to determine which set of metadata more accurately corresponds to the video content, might modify one or more metadata based on such determination, might generate an EPG that presents the video content, using metadata consistent with the modified one or more metadata, and might display the EPG on a display device.Type: ApplicationFiled: December 13, 2017Publication date: November 15, 2018Inventors: Michael D. Sprenger, Zubin Ingah, Aamir Hussain, Fernando Prieto-Ochoa, Asghar Hussain
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Publication number: 20180332356Abstract: Novel tools and techniques are provided for implementing a unified multi-source video programming & navigation guide. In various embodiments, a computing system might receive first metadata, receive second metadata, and compile the first metadata and the second metadata. The first metadata might correspond to first video content available from a first video content source among a plurality of video content sources, while the second metadata might correspond to second video content available from a second video content source among the plurality of video content sources. The computing system might also generate a unified multi-source video programming and navigation guide (“UPG”) that lists in a blended fashion the first video content and the second video content, based at least in part on the first metadata and the second metadata. The computing system might display the UPG on a display screen of a display device.Type: ApplicationFiled: December 13, 2017Publication date: November 15, 2018Inventors: Zubin Ingah, Fernando Prieto-Ochoa, Asghar Hussain, Pavan Sudheer, Michael D. Sprenger
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Patent number: 9605111Abstract: The present invention relates to a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to polyether polyols prepared by a polymerization reaction using said DMC catalyst.Type: GrantFiled: November 18, 2015Date of Patent: March 28, 2017Assignee: REPSOL, S.A.Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
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Publication number: 20160068631Abstract: The present invention relates to a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to polyether polyols prepared by a polymerization reaction using said DMC catalyst.Type: ApplicationFiled: November 18, 2015Publication date: March 10, 2016Applicant: REPSOL, S.A.Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
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Patent number: 9221947Abstract: The present invention relates to a process of preparing a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to the DMC catalyst obtainable by said process, as well as to polyether polyols prepared by a polymerization reaction using said DMC catalyst.Type: GrantFiled: May 16, 2012Date of Patent: December 29, 2015Assignee: REPSOL, S.A.Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
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Publication number: 20140243497Abstract: The present invention relates to a process of preparing a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to the DMC catalyst obtainable by said process, as well as to polyether polyols prepared by a polymerization reaction using said DMC catalyst.Type: ApplicationFiled: May 16, 2012Publication date: August 28, 2014Applicant: REPSOL, S.A.Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
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Publication number: 20130073420Abstract: A method of collaborative interior design between users on a displayed graphical user interface includes for each user, displaying on the graphical user interface a first list of design elements retrieved from a remote third-party data sources and a second list of design elements retrieved from a service provider data source. The method further includes receiving a placement of a design element from one of the design element lists in an interactive view of the graphical user interface by at least one of the users, and displaying an arrangement of design elements placed in the interactive view. The method includes executing on a computing processor an information acquisition routine that determines purchasing information for design elements of the first list placed in the interactive view, and displaying a shopping list populated with at least some of the design elements placed in the interactive view.Type: ApplicationFiled: August 31, 2012Publication date: March 21, 2013Applicant: Doodle Enterprises LLCInventors: Michael R. Kumm, Jennifer Gilbert, Kevin A. Goddard, Fernando Prieto Paricio
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Patent number: 7238920Abstract: Disclosed is a baseball and/or softball bat warmer system. Each individual bat heater includes an elongated outer tubular member having a closed bottom surface. An inner tubular member is spaced inwardly from the outer tubular member forming a space therebetween. A radiation type heating element is positioned between the inner and outer members so that it extends around the barrel portion of the bat for even heating thereof. The system also utilizes a heat seal positioned on the upper portion of the outer tubular member to protect the handle and grip portion of the bat from excessive heat.Type: GrantFiled: January 27, 2006Date of Patent: July 3, 2007Inventors: Fernando Prieto, David Prieto
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Publication number: 20070057123Abstract: Process for manufacturing a monolithic leading edge (21) for aircraft aerodynamic surfaces formed by an outer skin (23) and a plurality of inner ribs (25) characterised by comprising the following steps: a) providing a male tool made the assembly of a plurality of blocks (31); b) cutting dry carbon fibers layers for the skin (23) and the ribs (25); c) laminating dry fibers layers on the lateral sides (32) of said blocks (31) forming half ribs (37); d) assembling the male tool (33) with the ribs (25) to be formed with two half ribs (37) laminated on adjacent blocks (31) integrated on it;. e) laminating dry fibers layers (39) for the skin (23) on the male tool (33); f) placing the female tool (35) over the male tool (33) closing a mould for the next step; g) performing a resin injection/curing process under high temperature conditions.Type: ApplicationFiled: November 9, 2005Publication date: March 15, 2007Inventors: Antonio Gahete, Juan Carlos Iglesias, Fernando Prieto, Antonio Cala Romero