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).

  • Patent number: 12359735
    Abstract: 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: Grant
    Filed: September 18, 2023
    Date of Patent: July 15, 2025
    Assignee: Acorn Engineering Company, Inc.
    Inventors: Edward Barry Knoles, Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
  • Patent number: 12292123
    Abstract: 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: Grant
    Filed: September 18, 2023
    Date of Patent: May 6, 2025
    Assignee: Acorn Engineering Company, Inc.
    Inventors: Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
  • Patent number: 11976736
    Abstract: 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: Grant
    Filed: July 20, 2022
    Date of Patent: May 7, 2024
    Assignee: Acorn Engineering Company, Inc.
    Inventors: Pui Yuen Ng, Luis Fernando Prieto, Adrian Alexander Filip, Alan Long Thien Du, Edward Barry Knoles
  • Publication number: 20240093795
    Abstract: 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: Application
    Filed: September 18, 2023
    Publication date: March 21, 2024
    Inventors: Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
  • Publication number: 20240093794
    Abstract: 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: Application
    Filed: September 18, 2023
    Publication date: March 21, 2024
    Inventor: Luis Fernando Prieto
  • Publication number: 20240093796
    Abstract: 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: Application
    Filed: September 18, 2023
    Publication date: March 21, 2024
    Inventors: Edward Barry Knoles, Luis Fernando Prieto, Alan Long Thien Du, Pui Yuen Ng, Arturo Gomez, Adrian Alexander Filip
  • Patent number: 11826177
    Abstract: 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: Grant
    Filed: March 9, 2021
    Date of Patent: November 28, 2023
    Inventor: Mario Fernando Prieto Peres
  • Publication number: 20230025349
    Abstract: 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: Application
    Filed: July 20, 2022
    Publication date: January 26, 2023
    Inventors: Pui Yuen Ng, Luis Fernando Prieto, Adrian Alexander Filip, Alan Long Thien Du, Edward Barry Knoles
  • Publication number: 20220110591
    Abstract: 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: Application
    Filed: March 9, 2021
    Publication date: April 14, 2022
    Inventor: Mario Fernando Prieto PERES
  • Publication number: 20180332328
    Abstract: 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: Application
    Filed: December 13, 2017
    Publication date: November 15, 2018
    Inventors: Michael D. Sprenger, Zubin Ingah, Aamir Hussain, Fernando Prieto-Ochoa, Asghar Hussain
  • Publication number: 20180332356
    Abstract: 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: Application
    Filed: December 13, 2017
    Publication date: November 15, 2018
    Inventors: Zubin Ingah, Fernando Prieto-Ochoa, Asghar Hussain, Pavan Sudheer, Michael D. Sprenger
  • Patent number: 9605111
    Abstract: 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: Grant
    Filed: November 18, 2015
    Date of Patent: March 28, 2017
    Assignee: REPSOL, S.A.
    Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
  • Publication number: 20160068631
    Abstract: 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: Application
    Filed: November 18, 2015
    Publication date: March 10, 2016
    Applicant: REPSOL, S.A.
    Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
  • Patent number: 9221947
    Abstract: 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: Grant
    Filed: May 16, 2012
    Date of Patent: December 29, 2015
    Assignee: REPSOL, S.A.
    Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
  • Publication number: 20140243497
    Abstract: 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: Application
    Filed: May 16, 2012
    Publication date: August 28, 2014
    Applicant: REPSOL, S.A.
    Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
  • Publication number: 20130073420
    Abstract: 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: Application
    Filed: August 31, 2012
    Publication date: March 21, 2013
    Applicant: Doodle Enterprises LLC
    Inventors: Michael R. Kumm, Jennifer Gilbert, Kevin A. Goddard, Fernando Prieto Paricio
  • Patent number: 7238920
    Abstract: 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: Grant
    Filed: January 27, 2006
    Date of Patent: July 3, 2007
    Inventors: Fernando Prieto, David Prieto
  • Publication number: 20070057123
    Abstract: 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: Application
    Filed: November 9, 2005
    Publication date: March 15, 2007
    Inventors: Antonio Gahete, Juan Carlos Iglesias, Fernando Prieto, Antonio Cala Romero