Patents by Inventor Jan Pietraszek

Jan Pietraszek 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).

  • Method and device for controlled dosing of a gas with fluctuating supply pressure
    Patent number: 8869514
    Abstract: A method for controlled dosing of a gas with fluctuating supply pressure (PSupply). Dosing of the gas through a valve (6) is performed while a valve (5) is closed, and the decrease in control-volume pressure (PCV) is recorded. The control-volume pressure (PCV) is raised by closing dosing valve (6) and opening the valve (5). The amount of the dosed gas is calculated based on the known volume (VCV) of the control volume (4) and at least one of the change in control-volume pressure (PCV) and control-volume temperature (TCV) in the period where valve (5) is closed. The amount of dosed gas is compared with a target or set-point to adjust or regulate the subsequent dosing period or dosing event.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: October 28, 2014
    Assignee: Amminex Emissions Technology A/S
    Inventors: Jan Pietraszek, Tue Johannessen
  • METHOD AND DEVICE FOR CONTROLLED DOSING OF A GAS WITH FLUCTUATING SUPPLY PRESSURE
    Publication number: 20130098003
    Abstract: A method for controlled dosing of a gas with fluctuating supply pressure (PSupply). Dosing of the gas through a valve (6) is performed while a valve (5) is closed, and the decrease in control-volume pressure (PCV) is recorded. The control-volume pressure (PCV) is raised by closing dosing valve (6) and opening the valve (5). The amount of the dosed gas is calculated based on the known volume (VCV) of the control volume (4) and at least one of the change in control-volume pressure (PCV) and control-volume temperature (TCV) in the period where valve (5) is closed. The amount of dosed gas is compared with a target or set-point to adjust or regulate the subsequent dosing period or dosing event.
    Type: Application
    Filed: November 3, 2010
    Publication date: April 25, 2013
    Applicant: Amminex A/S
    Inventor: Jan Pietraszek