Patents by Inventor Ralph Williamson

Ralph Williamson 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).

  • Clamp based ESD protection circuits
    Patent number: 9728532
    Abstract: An electro-static discharge (ESD) protection circuit utilizes a gate-drain breakdown characteristic of high electron mobility transistors (HEMTs) in a dual stacked configuration to provide a discharge path for electro-static discharges, while having a minimal effect on the associated circuit which is being protected.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: August 8, 2017
    Assignee: Qorvo US, Inc.
    Inventors: Swaminathan Muthukrishnan, Nathaniel Peachey, Cody Hale, Ralph Williamson
  • Bin outlet inserts, and bin assembly systems and method employing such inserts
    Patent number: 9522778
    Abstract: Bin outlet inserts, and systems and methods employing bin outlet inserts for discharging materials are disclosed herein. For example, the bin outlet insert can be a transition device internal to and installed at a bottom of the bin that allows the circular outlet of a bin to be converted to a rectangular outlet (e.g., square outlet). A slide gate arranged at the bin outlet modulates the discharge of material (e.g., grain or seeds) from the bin. The rectangular cross-section of the outlet of the bin insert allows for a linear correspondence between displacement of the slide gate across the outlet to the volume flow of material discharged by the bin. Calculation of sliding gate position for a desired volume discharge, for example, in blending materials from multiple bins, can be simplified over using a circular outlet.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: December 20, 2016
    Assignee: BAYER CROPSCIENCE LP
    Inventors: Robert Peter Southwell, Edwin Ralph Williamson
  • BIN OUTLET INSERTS, AND BIN ASSEMBLY SYSTEMS AND METHOD EMPLOYING SUCH INSERTS
    Publication number: 20150175348
    Abstract: Bin outlet inserts, and systems and methods employing bin outlet inserts for discharging materials are disclosed herein. For example, the bin outlet insert can be a transition device internal to and installed at a bottom of the bin that allows the circular outlet of a bin to be converted to a rectangular outlet (e.g., square outlet). A slide gate arranged at the bin outlet modulates the discharge of material (e.g., grain or seeds) from the bin. The rectangular cross-section of the outlet of the bin insert allows for a linear correspondence between displacement of the slide gate across the outlet to the volume flow of material discharged by the bin. Calculation of sliding gate position for a desired volume discharge, for example, in blending materials from multiple bins, can be simplified over using a circular outlet.
    Type: Application
    Filed: November 19, 2014
    Publication date: June 25, 2015
    Inventors: Robert Peter SOUTHWELL, Edwin Ralph WILLIAMSON
  • CLAMP BASED ESD PROTECTION CIRCUITS
    Publication number: 20120262828
    Abstract: An electro-static discharge (ESD) protection circuit utilizes a gate-drain breakdown characteristic of high electron mobility transistors (HEMTs) in a dual stacked configuration to provide a discharge path for electro-static discharges, while having a minimal effect on the associated circuit which is being protected.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Swaminathan Muthukrishnan, Nathaniel Peachey, Cody Hale, Ralph Williamson