Patents by Inventor Hans O. Lannefors

Hans O. Lannefors 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: 5169414
    Abstract: An apparatus for adsorptive filtering of contaminants from a gaseous stream is provided. The apparatus includes a frame member. The frame includes a base member which is rotatable about an axis. A plurality of walls are attached to the base member and extend axially therefrom to a top member for providing a plurality of circumferential segment areas. The walls include a radially inner side for defining an axially extending inner chamber and a radially outer side for defining an outer periphery. A plurality of adsorption elements, each having an axial first side and an axial second side, are axially spaced in each of said circumferential segment areas. A duct or the like radially directs contaminated air into at least an entire one of the segment areas.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: December 8, 1992
    Assignee: Flakt, Inc.
    Inventors: Nicholas J. Panzica, Lennart Gustavsson, Leif Josefsson, Hans O. Lannefors
  • Patent number: 5057128
    Abstract: An apparatus for adsorptive filtering of contaminants from a gaseous stream is provided. The apparatus includes a frame member. The frame includes a base member which is rotatable about an axis. A plurality of walls are attached to the base member and extend axially therefrom to a top member for providing a plurality of circumferential segment areas. The walls include a radially inner side for defining an axially extending inner chamber and a radially outer side for defining an outer periphery. A plurality of adsorption elements, each having an axial first side and an axial second side, are axially spaced in each of said circumferential segment areas. A duct or the like radially directs contaminated air into at least an entire one of the segment areas.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: October 15, 1991
    Assignee: Flakt, Inc.
    Inventors: Nicholas J. Panzica, Lennart Gustavsson, Leif Josefsson, Hans O. Lannefors