Patents by Inventor Khurram Akhtar

Khurram Akhtar 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).

  • Cooled dry vacuum screw pump
    Patent number: 11708832
    Abstract: The present invention relates to rotary screw positive displacement machines used as a vacuum pump wherein additional intake air is provided allowing cooling to the invention which permits extended operation at extreme vacuum pressure. The rotary screw nature of the vacuum pump allows operation without additional lubrication with the additional intake air ensuring that thermal expansion will not disrupt the tight tolerances of the invention. The invention allows simultaneous operation as a vacuum pump and air compressor.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 25, 2023
    Inventors: Khurram Akhtar, Christopher White
  • COOLED DRY VACUUM SCREW PUMP
    Publication number: 20220268279
    Abstract: The present invention relates to rotary screw positive displacement machines used as a vacuum pump wherein additional intake air is provided allowing cooling to the invention which permits extended operation at extreme vacuum pressure. The rotary screw nature of the vacuum pump allows operation without additional lubrication with the additional intake air ensuring that thermal expansion will not disrupt the tight tolerances of the invention. The invention allows simultaneous operation as a vacuum pump and air compressor.
    Type: Application
    Filed: August 2, 2019
    Publication date: August 25, 2022
    Applicant: FRUVAC LTD.
    Inventors: Khurram Akhtar, Christopher White