Patents by Inventor Shankar Rajagopalan

Shankar Rajagopalan 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: 11458571
    Abstract: A system for welding two pipes includes a first pipe clamp, a second pipe clamp, a weld torch, an inspection detector, a motor, one or more processors, and a grinder. The weld torch is configured to create a weld joint between the pipes at an interface region between the pipes. The inspection detector is configured to emit an inspection beam of radiation. The motor is operatively associated with the inspection detector to direct the inspection beam of radiation along the weld joint between the pipes. The one or more processors are operatively associated with the inspection detector to determine a profile of the weld joint between the pipes. The grinder is configured to grind at least a portion of the weld joint between the pipes based on the profile of the weld joint between the pipes.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 4, 2022
    Assignee: CRC-EVANS PIPELINE INTERNATIONAL, INC.
    Inventors: Shankar Rajagopalan, Siddharth Mallick, Brian L. Kirk
  • Publication number: 20210023640
    Abstract: A welding system comprises a plurality of welders and a server. Each welder includes one or more processors and one or more sensors. The one or more sensors are configured to measure weld data. The weld data includes data related to one or more operating parameters of the welder that are configured to control an ongoing weld operation of the welder. The welding system comprises a server in communication with the one or more processors to receive the weld data. The server is configured to process the weld data and communicate the processed weld data to the one or more processors. If the weld data does not meet predetermined criteria, the one or more processors are configured to modify the ongoing weld operation of the welder.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Inventor: Shankar RAJAGOPALAN
  • Patent number: 10828715
    Abstract: A welding system includes a welding station having a weld station computer and a weld system in communication with the weld station computer. The weld system includes a supply of weld material, a welding device, and a weld supply motor assembly that moves the weld material to the welder device. The system further includes a weighting device operatively connected with the weld station computer to measure a weight of the supply of weld material and to communicate the weight of the supply of weld material to the weld station computer; and a sensor operatively connected with the weld supply motor assembly and the weld station computer so as to communicate the speed of the weld supply motor assembly to the weld station computer. The weld station computer is operatively connected to the weld supply motor assembly to control the speed of the motor assembly based on the weight data.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 10, 2020
    Assignee: CRC-EVANS PIPELINE INTERNATIONAL, INC.
    Inventor: Shankar Rajagopalan
  • Patent number: 10040141
    Abstract: The present invention is directed to a system for welding together segments of a pipeline. The system includes an external alignment mechanism for externally supporting and manipulating the orientation of pipe segments in order to align relative segments. The system also includes an internal welding mechanism for applying a weld to an interior face joint of the two abutted pipe segments. The internal welding mechanism including a torch for applying a weld, a laser for tracking the weld profile and guiding an articulating head of the torch, and a camera for visually inspecting the weld after the weld is applied.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: August 7, 2018
    Assignee: CRC-Evans Pipeline International, Inc.
    Inventors: Shankar Rajagopalan, Siddharth Mallick, Jose C. Bouche
  • Patent number: 9969031
    Abstract: Apparatus, systems, processes, control systems, means and methods for near-weld gas purging and welding. A focused circumferential near-weld purge gas delivery system for pipeline welding. A near-weld purge rig which has a near-weld purge gas channel and which achieves a low oxygen concentration proximate to a pipe gap for welding. The gas used for purging is also directed against an interior surface of the pipe to be welded. The directed gas cools the pipe to a desired temperature.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: May 15, 2018
    Assignee: CRC—Evans Pipeline International, Inc.
    Inventors: Mark Clemmons, Shankar Rajagopalan, Jason W. Curbo, Jose C. Bouche, Siddharth Mallick, Brian L. Kirk
  • Publication number: 20180021891
    Abstract: Apparatus, systems, processes, control systems, means and methods for near-weld gas purging and welding. A focused circumferential near-weld purge gas delivery system for pipeline welding. A near-weld purge rig which has a near-weld purge gas channel and which achieves a low oxygen concentration proximate to a pipe gap for welding. The gas used for purging is also directed against an interior surface of the pipe to be welded. The directed gas cools the pipe to a desired temperature.
    Type: Application
    Filed: February 29, 2016
    Publication date: January 25, 2018
    Inventors: Mark Clemmons, Shankar Rajagopalan, Jason W. Curbo, Jose C. Bouche, Siddharth Mallick, Brian L. Kirk
  • Publication number: 20180001422
    Abstract: A system for welding two pipes includes a first pipe clamp, a second pipe clamp, a weld torch, an inspection detector, a motor, one or more processors, and a grinder. The weld torch is configured to create a weld joint between the pipes at an interface region between the pipes. The inspection detector is configured to emit an inspection beam of radiation. The motor is operatively associated with the inspection detector to direct the inspection beam of radiation along the weld joint between the pipes. The one or more processors are operatively associated with the inspection detector to determine a profile of the weld joint between the pipes. The grinder is configured to grind at least a portion of the weld joint between the pipes based on the profile of the weld joint between the pipes.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Inventors: Shankar RAJAGOPALAN, Siddharth MALLICK, Brian L. KIRK
  • Publication number: 20170274467
    Abstract: A welding system includes a welding station having a weld station computer and a weld system in communication with the weld station computer. The weld system includes a supply of weld material, a welding device, and a weld supply motor assembly that moves the weld material to the welder device. The system further includes a weighting device operatively connected with the weld station computer to measure a weight of the supply of weld material and to communicate the weight of the supply of weld material to the weld station computer; and a sensor operatively connected with the weld supply motor assembly and the weld station computer so as to communicate the speed of the weld supply motor assembly to the weld station computer. The weld station computer is operatively connected to the weld supply motor assembly to control the speed of the motor assembly based on the weight data.
    Type: Application
    Filed: August 28, 2015
    Publication date: September 28, 2017
    Inventor: Shankar RAJAGOPALAN
  • Publication number: 20160256961
    Abstract: Apparatus, systems, processes, control systems, means and methods for near-weld gas purging and welding. A focused circumferential near-weld purge gas delivery system for pipeline welding. A near-weld purge rig which has a near-weld purge gas channel and which achieves a low oxygen concentration proximate to a pipe gap for welding. The gas used for purging is also directed against an interior surface of the pipe to be welded. The directed gas cools the pipe to a desired temperature.
    Type: Application
    Filed: February 29, 2016
    Publication date: September 8, 2016
    Inventors: Mark Clemmons, Shankar Rajagopalan, Jason W. Curbo, Jose C. Bouche, Siddharth Mallick, Brian L. Kirk
  • Publication number: 20140346163
    Abstract: The present invention is directed to a system for welding together segments of a pipeline. The system includes an external alignment mechanism for externally supporting and manipulating the orientation of pipe segments in order to align relative segments. The system also includes an internal welding mechanism for applying a weld to an interior face joint of the two abutted pipe segments. The internal welding mechanism including a torch for applying a weld, a laser for tracking the weld profile and guiding an articulating head of the torch, and a camera for visually inspecting the weld after the weld is applied.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 27, 2014
    Inventors: Shankar Rajagopalan, Siddharth Mallick, Jose C. Bouche
  • Publication number: 20140229394
    Abstract: The invention provides a method of automatically attributing energy and Renewable Energy Credits (RECs) to contractual and market obligations. The input of energy and RECs will automatically fit into existing data models, allowing immediate attribution upon upload. The invention will immediately calculate the energy balance of the input, accounting for such factors as resource generation, energy inputs, native load, station service, and obligations. Users can specify numerous energy and REC sources to be attributed simultaneously, such attribution happening according to either system or user-defined attribution policies. The invention allows users to manipulate the data to best facilitate use of their RECs, displaying REC positions over user-specified periods of time.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 14, 2014
    Applicant: Open Access Technology International
    Inventors: Ilya Slutsker, Carlos Gonzalez-Perez, John Lundstedt, Nirmalya Banerjee, Shankar Rajagopalan, Sasan Mokhtari