Patents by Inventor Rodrigo Guzman Castro

Rodrigo Guzman Castro 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: 9593777
    Abstract: A mechanical seal is disclosed having a rotatable sealing face and a stationary sealing face that are in opposed relation and arranged to be urged, into contact to form a seal. One of the sealing faces is mounted on a support assembly that includes a biasing device operative to move that sealing face into contact with the other sealing face. In one form of the invention, the biasing device comprises one or more resilient members that in use are deformed to provide the biasing force. In a second form of the invention, the support assembly forms part of a fluid barrier of the seal and the biasing device is fluid impervious and forms part of the barrier. In a third form of the invention, the biasing device is exposed to fluid pressure in the chamber and the biasing force increases on increasing the fluid pressure in the chamber.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: March 14, 2017
    Assignee: Vulco S.A.
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Patent number: 9249885
    Abstract: Mechanical seals, seal assemblies and pumps are disclosed. A mechanical seal includes a sealing member and a mount that forms part of a mounting assembly to mount the sealing member to a support structure of the seal. In an embodiment, the mount forms part of a seal assembly and is an elastomeric ring bonded to the sealing member.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: February 2, 2016
    Assignee: Vulco, S. A.
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Patent number: 9206906
    Abstract: A mechanical seal is disclosed that has first and second sealing faces that are urged into contact to form a seal therebetween. One sealing face is mounted on a rotatable portion of the seal and the second sealing face is mounted on a support assembly. The joint further includes a joint permitting rotary movement between the support assembly and a stationary portion of the seal to allow adjustment of the portion of the rotatable portion relative to the stationary portion without affecting the alignment of the first and second sealing faces.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: December 8, 2015
    Assignee: Vulco, S.A.
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Publication number: 20140356160
    Abstract: A mechanical seal is disclosed having a rotatable sealing face and a stationary sealing face that are in opposed relation and arranged to be urged, into contact to form a seal. One of the sealing faces is mounted on a support assembly that includes a biasing device operative to move that sealing face into contact with the other sealing face. In one form of the invention, the biasing device comprises one or more resilient members that in use are deformed to provide the biasing force. In a second form of the invention, the support assembly forms part of a fluid barrier of the seal and the biasing device is fluid impervious and forms part of the barrier. In a third form of the invention, the biasing device is exposed to fluid pressure in the chamber and the biasing force increases on increasing the fluid pressure in the chamber.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 4, 2014
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Patent number: 8753079
    Abstract: A mechanical seal is disclosed having a rotatable sealing face and a stationary sealing face that are in opposed relation and arranged to be urged, into contact to form a seal. One of the sealing faces is mounted on a support assembly that includes a biasing device operative to move that sealing face into contact with the other sealing face. In one form of the invention, the biasing device includes one or more resilient members that in use are deformed to provide the biasing force. In a second form of the invention, the support assembly forms part of a fluid barrier of the seal and the biasing device is fluid impervious and forms part of the barrier. In a third form of the invention, the biasing device is exposed to fluid pressure in the chamber and the biasing force increases on increasing the fluid pressure in the chamber.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: June 17, 2014
    Assignee: Vulco S.A.
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Publication number: 20120134799
    Abstract: A mechanical seal is disclosed that has first and second sealing faces that are urged into contact to form a seal therebetween. One sealing face is mounted on a rotatable portion of the seal and the second sealing face is mounted on a support assembly. The joint further comprises a joint permitting rotary movement between the support assembly and a stationary portion of the seal to allow adjustment of the potion of the rotatable portion relative to the stationary portion without affecting the alignment of the first and second sealing faces.
    Type: Application
    Filed: March 16, 2010
    Publication date: May 31, 2012
    Applicant: ZTE CORPORATION
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Publication number: 20120107115
    Abstract: Mechanical seals, seal assemblies and pumps are disclosed. A mechanical seal includes a sealing member and a mount that forms part of a mounting assembly to mount the sealing member to a support structure of the seal. In an embodiment, the mount forms part of a seal assembly and is an elastomeric ring bonded to the sealing member.
    Type: Application
    Filed: March 16, 2010
    Publication date: May 3, 2012
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Publication number: 20120099984
    Abstract: A mechanical seal is disclosed having a rotatable sealing face and a stationary sealing face that are in opposed relation and arranged to be urged, into contact to form a seal. One of the sealing faces is mounted on a support assembly that includes a biasing device operative to move that sealing face into contact with the other sealing face. In one form of the invention, the biasing device comprises one or more resilient members that in use are deformed to provide the biasing force. In a second form of the invention, the support assembly forms part of a fluid barrier of the seal and the biasing device is fluid impervious and forms part of the barrier. In a third form of the invention, the biasing device is exposed to fluid pressure in the chamber and the biasing force increases on increasing the fluid pressure in the chamber.
    Type: Application
    Filed: March 16, 2010
    Publication date: April 26, 2012
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas