Patents by Inventor Nathan Kreisberg

Nathan Kreisberg 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).

  • Particle microtrap screen
    Patent number: 6284025
    Abstract: A particle microtrap screen apparatus has an inlet, a jet orifice screen with multiple microjet orifices, and a microtrap plate having multiple microtraps spaced opposite the multiple microjet orifices for entrapping particles entrained by the jets and then released by the gas, and impacting in the microtraps with the energy imparted by the gas as the gas turns and flows between the jet orifice screen and the microtrap impact plate. Collection efficiencies of greater than 90% of particles, about 2 micrometers or larger in size, are experienced with pressure drops of less than 5 millimeters of water. The pressure drop does not increase upon increased loading with particles. The jet orifices have widths of D, about 0.5 millimeters, with spacing between orifices of about 5D and trap width and depth of about 4D and 2D, respectively, with about 2D spacing between the jet orifice screen and the microtrap plate.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: September 4, 2001
    Assignee: Aerosol Dynamics, Inc.
    Inventors: Nathan Kreisberg, Susanne V. Hering