Patents by Inventor Waqas Mahmood Arshad

Waqas Mahmood Arshad 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).

  • Modular static transfer switches
    Patent number: 11984760
    Abstract: In one aspect, a modular static transfer switch is provided. The module static transfer switch includes an output configured to couple to a load, a first input configured to couple to a first power source, and a second input configured to couple to a second power source. The modular static transfer switch further includes a plurality of sold-state switch modules each comprising at least one solid-state switch. A first plurality of the solid-state switch modules are coupled in parallel between the first input and the output, each configured to selectively couple the first power source to the output using the at least one solid-state switch. A second plurality of the solid-state switch modules are coupled in parallel between the second input and the output, each configured to selectively couple the second power source to the output using the at least one solid-state switch.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: May 14, 2024
    Assignee: ABB Schweiz AG
    Inventors: Yu Du, Christopher Alan Belcastro, Waqas Mahmood Arshad
  • MODULAR STATIC TRANSFER SWITCHES
    Publication number: 20230155368
    Abstract: In one aspect, a modular static transfer switch is provided. The module static transfer switch includes an output configured to couple to a load, a first input configured to couple to a first power source, and a second input configured to couple to a second power source. The modular static transfer switch further includes a plurality of sold-state switch modules each comprising at least one solid-state switch. A first plurality of the solid-state switch modules are coupled in parallel between the first input and the output, each configured to selectively couple the first power source to the output using the at least one solid-state switch. A second plurality of the solid-state switch modules are coupled in parallel between the second input and the output, each configured to selectively couple the second power source to the output using the at least one solid-state switch.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Inventors: Yu Du, Christopher Alan Belcastro, Waqas Mahmood Arshad
  • Multiphase fractional slot concentrated winding machine with end mounted detachable or integrated multiphase series converter circuit
    Patent number: 10177633
    Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 8, 2019
    Assignee: ABB Schweiz AG
    Inventors: Ghanshyam Shrestha, Zhiguo Pan, Mario Schweizer, Darren Dale Tremelling, Waqas Mahmood Arshad
  • MULTIPHASE FRACTIONAL SLOT CONCENTRATED WINDING MACHINE WITH END MOUNTED DETACHABLE OR INTEGRATED MULTIPHASE SERIES CONVERTER CIRCUIT
    Publication number: 20160181893
    Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 23, 2016
    Inventors: Ghanshyam Shrestha, Zhiguo Pan, Mario Schweizer, Darren Dale Tremelling, Waqas Mahmood Arshad