Patents by Inventor John Rawlins

John Rawlins 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: 11702767
    Abstract: The present invention is a novel gas assisted nozzle and a method for micro and nanofiber production. In this composite nozzle, a high velocity gas stream is introduced through a core protruding orifice, while a liquid is introduced via at least one satellite orifice, external to the core orifice. The liquid flow is picked-up and accelerated (blown) by the gas stream from the tip of the protruding gas nozzle. This avoids passing the high velocity gas over the surface of the slow flowing liquid and achieves the acceleration of the liquid flow on its approach to being picked-up by the gas stream. Proper control of the gas and the polymer liquid flow results in fine liquid blowing and formation of micro and nanofibers.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 18, 2023
    Inventors: John Rawlins, Jin Hee Kang
  • Publication number: 20190352801
    Abstract: The present invention is a novel gas assisted nozzle and a method for micro and nanofiber production. In this composite nozzle, a high velocity gas stream is introduced through a core protruding orifice, while a liquid is introduced via at least one satellite orifice, external to the core orifice. The liquid flow is picked-up and accelerated (blown) by the gas stream from the tip of the protruding gas nozzle. This avoids passing the high velocity gas over the surface of the slow flowing liquid and achieves the acceleration of the liquid flow on its approach to being picked-up by the gas stream. Proper control of the gas and the polymer liquid flow results in fine liquid blowing and formation of micro and nanofibers.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 21, 2019
    Inventors: John RAWLINS, Jin Hee KANG
  • Publication number: 20050254285
    Abstract: A late select circuit topology has pseudo-static circuits that provide fast dynamic circuit operation without the use of dynamic clock timing signals. An output from a selected set is enabled by the conjunction of bit line pulse and set select signal.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 17, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yuen Chan, Timothy Charest, Antonio Pelella, John Rawlins
  • Publication number: 20050254317
    Abstract: A SRAM sense amplifier timing circuit provides various delay settings for the sense amplifier enable signal (sae) and the sense amplifier reset signal (rse) in order to allow critical timing adjustments to be made for early mode, late mode conditions by varying the timing or with of the sense amplifier output pulse. These timing adjustments are programmable using scan in bits.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 17, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yuen Chan, Timothy Charest, John Rawlins, Arthur Tuminaro, Jatinder Wadhwa, Otto Wagner