Patents by Inventor Ricardo Abarca Melo
Ricardo Abarca Melo 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: 9593777Abstract: 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: GrantFiled: June 6, 2014Date of Patent: March 14, 2017Assignee: Vulco S.A.Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Patent number: 9249885Abstract: 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: GrantFiled: March 16, 2010Date of Patent: February 2, 2016Assignee: Vulco, S. A.Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Patent number: 9206906Abstract: 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: GrantFiled: March 16, 2010Date of Patent: December 8, 2015Assignee: Vulco, S.A.Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Patent number: 9114424Abstract: Apparatus (1) for enabling a coating to be applied to an internal surface of a pipe elbow or bend C comprises a flexible body (2) adapted for location to extend within the pipe elbow or bend, and a bendable core (3) extending through the body. Bending of the core causes the flexible body to be bent in a similar manner. A method for applying the coating to the internal surface of the pipe elbow or bend (C) comprises the steps of shaping the flexible body (2) and locating it to extend within the pipe elbow or bend, and introducing a coating material so as to flow around and into a space defined between the flexible body and the internal surface of the elbow or bend.Type: GrantFiled: March 25, 2013Date of Patent: August 25, 2015Assignee: Weir Vulco, S.A.Inventors: Ricardo Abarca Melo, Jaime Ramirez Toledo, Wilfredo San Martin Cisterna
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Publication number: 20140356160Abstract: 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: ApplicationFiled: June 6, 2014Publication date: December 4, 2014Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Patent number: 8900504Abstract: A method of manufacturing a mandrel for use in the internal coating of a pipe elbow or bend comprises the steps of: (i) adjustably positioning a bendable elongate member in a hollow template for the pipe elbow or bend, whereby the elongate member is bent so as to extend generally centrally through the template; and (ii) introducing a flexible material into, and allowing the material to cure in a space between the elongate member and an internal surface of the template.Type: GrantFiled: December 22, 2008Date of Patent: December 2, 2014Assignee: Weir Vulco, S.A.Inventors: Jaime Ramirez Toledo, Ricardo Abarca Melo, Wilfredo San Martin Cisterna
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Patent number: 8753079Abstract: 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: GrantFiled: March 16, 2010Date of Patent: June 17, 2014Assignee: Vulco S.A.Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Patent number: 8658071Abstract: A method for enabling a lining (14) to be applied to a pipe elbow or bend C comprises the steps of connecting a tie member (12) to an end of a flexible elongate mandrel (1), drawing the tie member through the elbow or bend so as to draw the mandrel therethrough and locate opposing ends of the mandrel adjacent to opposing respective ends of the elbow or bend, and securing the mandrel ends in relation to the respective ends of the elbow or bend. The mandrel can be adapted to the elbow or bend by locating the elbow or bend in a given orientation and deriving a profile S of the elbow or bend while in that orientation, removing the elbow or bend and then locating the mandrel in the given orientation, and adjusting the mandrel in relation to the profile of the elbow or bend to adapt it thereto.Type: GrantFiled: December 22, 2008Date of Patent: February 25, 2014Assignee: Weir Vulco, S.A.Inventors: Ricardo Abarca Melo, Wilfredo San Martin Cisterna, Jaime Ramirez Toledo
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Patent number: 8403245Abstract: A cushioning element suitable for use in a liner assembly for a grinding mill, the liner assembly including a mounting element having a recess therein, the cushioning element being located within the recess, and a wear element operatively connected to the cushioning element, the cushioning element including a cushion body of elastomeric material including a side section and opposed end sections, a plurality of cavities within the cushion body and extending from at least one of the end sections towards the other end section.Type: GrantFiled: August 15, 2011Date of Patent: March 26, 2013Assignee: Vulco, S.A.Inventors: Ricardo Abarca Melo, Ricardo Fernandez Doberti
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Patent number: 8403657Abstract: Apparatus (1) for enabling a coating to be applied to an internal surface of a pipe elbow or bend C comprises a flexible body (2) adapted for location to extend within the pipe elbow or bend, and a bendable core (3) extending through the body. Bending of the core causes the flexible body to be bent in a similar manner. A method for applying the coating to the internal surface of the pipe elbow or bend (C) comprises the steps of shaping the flexible body (2) and locating it to extend within the pipe elbow or bend, and introducing a coating material so as to flow around and into a space defined between the flexible body and the internal surface of the elbow or bend.Type: GrantFiled: November 27, 2008Date of Patent: March 26, 2013Assignee: Weir Vulco, S.A.Inventors: Ricardo Abarca Melo, Jaime Ramirez Toledo, Wilfredo San Martin Cisterna
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Publication number: 20120134799Abstract: 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: ApplicationFiled: March 16, 2010Publication date: May 31, 2012Applicant: ZTE CORPORATIONInventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Publication number: 20120107115Abstract: 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: ApplicationFiled: March 16, 2010Publication date: May 3, 2012Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Publication number: 20120099984Abstract: 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: ApplicationFiled: March 16, 2010Publication date: April 26, 2012Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
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Publication number: 20120032015Abstract: A cushioning element suitable for use in a liner assembly for a grinding mill, the liner assembly including a mounting element having a recess therein, the cushioning element being located within the recess, and a wear element operatively connected to the cushioning element, the cushioning element including a cushion body of elastomeric material including a side section and opposed end sections, a plurality of cavities within the cushion body and extending from at least one of the end sections towards the other end section.Type: ApplicationFiled: August 15, 2011Publication date: February 9, 2012Applicant: Vulco, S.A.Inventors: Ricardo Abarca Melo, Ricardo Fernandez Daberti
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Patent number: 8100627Abstract: An impeller fixing mechanism is provided in a centrifugal pump for immobilizing the impeller, relative to the pump shaft and drive shaft of the pump, while effecting repairs to the pump, thereby eliminating much of the labor-intensive need for realigning the pump shaft and drive shaft and assuring accurate positioning of the impeller relative to the pump shaft. A method for effecting repairs of centrifugal pumps employs use of the impeller fixing mechanism of the invention to immobilize the impeller relative to the pump shaft, thereby facilitating the repair.Type: GrantFiled: December 20, 2006Date of Patent: January 24, 2012Assignee: Vulco, S.A.Inventor: Ricardo Abarca Melo
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Patent number: 8016220Abstract: A liner assembly for use in a grinding mill, the liner assembly including a liner body including a mounting member, and an elastomeric cushioning member operatively connected to the mounting member. The cushioning member includes a plurality of support cavities therein, and a plurality of wear elements mounted within the support cavities.Type: GrantFiled: January 16, 2006Date of Patent: September 13, 2011Assignee: Vulco, S.A.Inventors: Ricardo Abarca Melo, Ricardo Fernandez Daberti
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Patent number: 7997517Abstract: A cushioning element suitable for use in a liner assembly for a grinding mill, the liner assembly including a mounting element having a recess therein, the cushioning element being located within the recess, and a wear element operatively connected to the cushioning element, the cushioning element including a cushion body of elastomeric material including a side section and opposed end sections, a plurality of cavities within the cushion body and extending from at least one of the end sections towards the other end section.Type: GrantFiled: January 16, 2006Date of Patent: August 16, 2011Assignee: Vulco, S.A.Inventors: Ricardo Abarca Melo, Ricardo Fernandez Daberti
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Publication number: 20110133361Abstract: Apparatus (1) for enabling a coating to be applied to an internal surface of a pipe elbow or bend C comprises a flexible body (2) adapted for location to extend within the pipe elbow or bend, and a bendable core (3) extending through the body. Bending of the core causes the flexible body to be bent in a similar manner. A method for applying the coating to the internal surface of the pipe elbow or bend (C) comprises the steps of shaping the flexible body (2) and locating it to extend within the pipe elbow or bend, and introducing a coating material so as to flow around and into a space defined between the flexible body and the internal surface of the elbow or bend.Type: ApplicationFiled: November 27, 2008Publication date: June 9, 2011Inventors: Ricardo Abarca Melo, Jaime Ramirez Toledo, Wilfredo San Martin Cisterna
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Publication number: 20110018256Abstract: A method for enabling a lining (14) to be applied to a pipe elbow or bend C comprises the steps of connecting a tie member (12) to an end of a flexible elongate mandrel (1), drawing the tie member through the elbow or bend so as to draw the mandrel therethrough and locate opposing ends of the mandrel adjacent to opposing respective ends of the elbow or bend, and securing the mandrel ends in relation to the respective ends of the elbow or bend. The mandrel can be adapted to the elbow or bend by locating the elbow or bend in a given orientation and deriving a profile S of the elbow or bend whilst in that orientation, removing the elbow or bend and then locating the mandrel in the given orientation, and adjusting the mandrel in relation to the profile of the elbow or bend to adapt it thereto.Type: ApplicationFiled: December 22, 2008Publication date: January 27, 2011Inventors: Ricardo Abarca Melo, Wilfredo San Martin Cisterna, Jaime Ramirez Toledo
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Publication number: 20110012287Abstract: A method of manufacturing a mandrel for use in the internal coating of a pipe elbow or bend comprises the steps of: (i) adjustably positioning a bendable elongate member in a hollow template for the pipe elbow or bend, whereby the elongate member is bent so as to extend generally centrally through the template; and (ii) introducing a flexible material into, and allowing the material to cure in a space between the elongate member and an internal surface of the template.Type: ApplicationFiled: December 22, 2008Publication date: January 20, 2011Inventors: Jaime Ramirez Toledo, Ricardo Abarca Melo, Wilfredo San Martin Cisterna