Patents by Inventor Mehul Rajeshbhai Dalal

Mehul Rajeshbhai Dalal 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).

  • Publication number: 20240231462
    Abstract: A field device for use in an industrial process includes a transducer configured to couple to the industrial process and control or monitor a process variable of the industrial process. Primary communication circuitry communicates information with a remote location related to the process variable. A wireless communication module includes an energy storage device and power monitoring electronics coupled to the energy storage device having a power output and a power status output. Wireless communication circuitry of the wireless communication module is configured to communicate wirelessly and perform a plurality of high priority tasks and a plurality of low priority tasks. The high priority tasks are performed asynchronously and the plurality of low priority tasks are only performed if the power status output indicates that there is sufficient power.
    Type: Application
    Filed: January 8, 2024
    Publication date: July 11, 2024
    Inventors: Matthew Then, Mehul Rajeshbhai Dalal
  • Patent number: 11368384
    Abstract: A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: June 21, 2022
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventor: Mehul Rajeshbhai Dalal
  • Patent number: 11329906
    Abstract: A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 10, 2022
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventor: Mehul Rajeshbhai Dalal
  • Patent number: 10764083
    Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: September 1, 2020
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Roger Benson, Mehul Rajeshbhai Dalal, Anthony Ferguson, Todd M. Toepke
  • Patent number: 10505585
    Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: December 10, 2019
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Roger Benson, Anthony D. Ferguson, Mehul Rajeshbhai Dalal, Sameer Parshuram Gorivale
  • Patent number: 10481627
    Abstract: Multi-functional field maintenance (FM) tools that connect to process control devices, such as FOUNDATION Fieldbus and Highway Addressable Remote Transducer devices, can automatically detect and simultaneously identify communications, troubleshoot connections, and supply power in a process control plant. Simplifying the troubleshooting process, by guiding a user of a multi-functional FM tool through recommended troubleshooting steps, while simultaneously detecting and correcting issues reduces the number of tools required to maintain process control devices, reduces the risk of damage, and improves efficiency by minimizing production downtime.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 19, 2019
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Christian R. Butikofer, Anthony Ferguson, Christopher P. Kantzes, Jon Westbrock, Thinh D. Le, Alden C. Russell, III, Alan R. Dewey, Mehul Rajeshbhai Dalal, Todd M. Toepke
  • Publication number: 20190312803
    Abstract: A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 10, 2019
    Inventor: Mehul Rajeshbhai Dalal
  • Patent number: 10382312
    Abstract: A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 13, 2019
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventor: Mehul Rajeshbhai Dalal
  • Publication number: 20180026677
    Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.
    Type: Application
    Filed: March 9, 2017
    Publication date: January 25, 2018
    Applicant: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Roger Benson, Anthony D. Ferguson, Mehul Rajeshbhai Dalal, Sameer Parshuram Gorivale
  • Publication number: 20180024582
    Abstract: Multi-functional field maintenance (FM) tools that connect to process control devices, such as FOUNDATION Fieldbus and Highway Addressable Remote Transducer devices, can automatically detect and simultaneously identify communications, troubleshoot connections, and supply power in a process control plant. Simplifying the troubleshooting process, by guiding a user of a multi-functional FM tool through recommended troubleshooting steps, while simultaneously detecting and correcting issues reduces the number of tools required to maintain process control devices, reduces the risk of damage, and improves efficiency by minimizing production downtime.
    Type: Application
    Filed: December 16, 2016
    Publication date: January 25, 2018
    Inventors: Christian R. Butikofer, Anthony Ferguson, Christopher P. Kantzes, Jon Westbrock, Thinh D. Le, Alden C. Russell, III, Alan R. Dewey, Mehul Rajeshbhai Dalal, Todd M. Toepke
  • Publication number: 20180026809
    Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.
    Type: Application
    Filed: March 9, 2017
    Publication date: January 25, 2018
    Applicant: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Roger Benson, Mehul Rajeshbhai Dalal, Anthony Ferguson, Todd M. Toepke
  • Publication number: 20170257262
    Abstract: A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.
    Type: Application
    Filed: April 22, 2016
    Publication date: September 7, 2017
    Inventor: Mehul Rajeshbhai Dalal
  • Publication number: 20170205790
    Abstract: A field device includes a controller and a process communication module. The controller is configured to perform at least one operation related to process control and is also configured to perform at least one self-recovery operation relative to the field device. The process communication module is coupled to the controller and is configured to couple to a process communication segment and communicate in accordance with a process communication protocol. The controller is configured to detect an erroneous condition and selectively apply the at least one self-recovery operation in response to the detected erroneous condition.
    Type: Application
    Filed: September 30, 2014
    Publication date: July 20, 2017
    Inventor: Mehul Rajeshbhai Dalal