Patents by Inventor Amitav Mehra

Amitav Mehra 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: 10006291
    Abstract: A small scale, high speed turbomachine is described, as well as a process for manufacturing the turbomachine. The turbomachine is manufactured by diffusion bonding stacked sheets of metal foil, each of which has been pre-formed to correspond to a cross section of the turbomachine structure. The turbomachines include rotating elements as well as static structures. Using this process, turbomachines may be manufactured with rotating elements that have outer diameters of less than four inches in size, and/or blading heights of less than 0.1 inches. The rotating elements of the turbomachines are capable of rotating at speeds in excess of 150 feet per second. In addition, cooling features may be added internally to blading to facilitate cooling in high temperature operations.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: June 26, 2018
    Assignee: ASTRA SPACE, INC.
    Inventors: Adam P. London, Lloyd J. Droppers, Matthew K. Lehman, Amitav Mehra
  • Publication number: 20160377088
    Abstract: A small scale, high speed turbomachine is described, as well as a process for manufacturing the turbomachine. The turbomachine is manufactured by diffusion bonding stacked sheets of metal foil, each of which has been pre-formed to correspond to a cross section of the turbomachine structure. The turbomachines include rotating elements as well as static structures. Using this process, turbomachines may be manufactured with rotating elements that have outer diameters of less than four inches in size, and/or blading heights of less than 0.1 inches. The rotating elements of the turbomachines are capable of rotating at speeds in excess of 150 feet per second. In addition, cooling features may be added internally to blading to facilitate cooling in high temperature operations.
    Type: Application
    Filed: February 6, 2015
    Publication date: December 29, 2016
    Inventors: Adam P. London, Lloyd J. Droppers, Matthew K. Lehman, Amitav Mehra
  • Patent number: 8956123
    Abstract: A small scale, high speed turbomachine is described, as well as a process for manufacturing the turbomachine. The turbomachine is manufactured by diffusion bonding stacked sheets of metal foil, each of which has been pre-formed to correspond to a cross section of the turbomachine structure. The turbomachines include rotating elements as well as static structures. Using this process, turbomachines may be manufactured with rotating elements that have outer diameters of less than four inches in size, and/or blading heights of less than 0.1 inches. The rotating elements of the turbomachines are capable of rotating at speeds in excess of 150 feet per second. In addition, cooling features may be added internally to blading to facilitate cooling in high temperature operations.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 17, 2015
    Assignee: Ventions, LLC
    Inventors: Adam P. London, Lloyd J. Droppers, Matthew K. Lehman, Amitav Mehra
  • Publication number: 20110211972
    Abstract: A small scale, high speed turbomachine is described, as well as a process for manufacturing the turbomachine. The turbomachine is manufactured by diffusion bonding stacked sheets of metal foil, each of which has been pre-formed to correspond to a cross section of the turbomachine structure. The turbomachines include rotating elements as well as static structures. Using this process, turbomachines may be manufactured with rotating elements that have outer diameters of less than four inches in size, and/or blading heights of less than 0.1 inches. The rotating elements of the turbomachines are capable of rotating at speeds in excess of 150 feet per second. In addition, cooling features may be added internally to blading to facilitate cooling in high temperature operations.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: VENTIONS, LLC
    Inventors: Adam P. London, Lloyd J. Droppers, Matthew K. Lehman, Amitav Mehra