Patents by Inventor Hannu Esa

Hannu Esa 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).

  • Fan with integrated fan motor
    Patent number: 6652225
    Abstract: The revolving fan impeller of a fan includes a fan blade ring, which is used to produce an air current, as well as a turbine blade ring, which is used to drive the impeller and which may be impinged upon by a pressurized fluid. The fan casing includes a feed channel for the pressurized fluid as well as several nozzles to carry the pressurized fluid from the feed channel to the turbine blade ring. The number of active nozzles may be varied. For this purpose, the nozzles are arranged on a stator ring, which may be rotated around the fan axis.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: November 25, 2003
    Assignee: Voith Paper Patent GmbH
    Inventor: Hannu Esa
  • Vacuum belt conveyor
    Patent number: 6630057
    Abstract: A vacuum belt conveyor is suitable for guiding a running paper web, in particular a threading tail, and includes an air-pervious endless conveyor belt traveling around a vacuum box which supports two belt pulleys. At least one vacuum blower creates a negative pressure within the loop of the belt. The vacuum blower is positioned within the vacuum box at a certain distance from the conveying run of the belt and is driven by an air turbine. One of the pulleys is driven by an electric motor (M′) positioned inside of that pulley.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: October 7, 2003
    Assignee: Voith Paper Patent GmbH
    Inventors: Allen Broom, Hannu Esa
  • Fan with integrated fan motor
    Publication number: 20020122720
    Abstract: The revolving fan impeller of a fan includes a fan blade ring, which is used to produce an air current, as well as a turbine blade ring, which is used to drive the impeller and which may be impinged upon by a pressurized fluid. The fan casing includes a feed channel for the pressurized fluid as well as several nozzles to carry the pressurized fluid from the feed channel to the turbine blade ring. The number of active nozzles may be varied. For this purpose, the nozzles are arranged on a stator ring, which may be rotated around the fan axis.
    Type: Application
    Filed: February 28, 2002
    Publication date: September 5, 2002
    Inventor: Hannu Esa
  • Vacuum belt conveyor
    Publication number: 20010050154
    Abstract: A vacuum belt conveyor is suitable for guiding a running paper web, in particular a threading tail, and includes an air-pervious endless conveyor belt traveling around a vacuum box which supports two belt pulleys. At least one vacuum blower creates a negative pressure within the loop of the belt. The vacuum blower is positioned within the vacuum box at a certain distance from the conveying run of the belt and is driven by an air turbine. One of the pulleys is driven by an electric motor (M′) positioned inside of that pulley.
    Type: Application
    Filed: February 23, 2001
    Publication date: December 13, 2001
    Inventors: Allen Broom, Hannu Esa