Patents by Inventor Frank Herwig

Frank Herwig 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 for desulfurizing
    Patent number: 10190183
    Abstract: The method employs a desulfurization agent that is introduced into a smelt of one of molten pig iron and molten steel. The desulfurization agent contains calcium oxide, bitumen and at least one flux agent, with the agent containing 1 to 10% by weight bitumen.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: January 29, 2019
    Assignee: Almamet GmbH
    Inventor: Frank Herwig
  • Method for Desulfurizing
    Publication number: 20170218469
    Abstract: The method employs a desulfurization agent that is introduced into a smelt of one of molten pig iron and molten steel. The desulfurization agent contains calcium oxide, bitumen and at least one flux agent, with the agent containing 1 to 10% by weight bitumen.
    Type: Application
    Filed: April 20, 2017
    Publication date: August 3, 2017
    Applicant: Almanet GMBH
    Inventor: Frank Herwig
  • Conversion of troublesome lime fines to useful high quality fluidized lime in feeding flux lime to a BOF converter
    Patent number: 9365907
    Abstract: Crushed flux lime to be used in a BOF converter is processed to minimize waste dust, obviate environmental complications caused by high pH in waste water, and to utilize a very high percentage of the original crushed lime for useful products. The crushed flux lime is screened to provide a fine grain fraction and a modified flux lime fraction. Only a small percentage of the modified flux lime fraction is dust which may be removed in a dust collection system, and the modified flux lime fraction is then passed to the BOF converter. The fine grain fraction is made into a highly fluidized lime of very small dimensions by pulverizing it further in the presence of a fluidizing agent.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 14, 2016
    Assignee: Almamet USA, Inc.
    Inventor: Frank Herwig
  • Preparation of flux lime for a BOF converter including conversion of troublesome fines to high quality fluidized lime
    Patent number: 9322073
    Abstract: Crushed flux lime to be used in a BOF converter is processed to minimize waste dust, obviate environmental complications caused by high pH in waste water, and to utilize a very high percentage of the original crushed lime for useful products. The crushed flux lime is screened to provide a fine grain fraction and a modified flux lime fraction. Only a small percentage of the modified flux lime fraction is dust which may be removed in a dust collection system, and the modified flux lime fraction is then passed to the BOF converter. The fine grain fraction is made into a highly fluidized lime of very small dimensions by pulverizing it further in the presence of a fluidizing agent.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 26, 2016
    Assignee: Almamet USA, Inc.
    Inventor: Frank Herwig
  • Desulfurization Agent Containing Bitumen, Method for the Production Thereof, and Use Thereof
    Publication number: 20150027274
    Abstract: An agent for desulfurizing and/or for pre-desulfurizing, in particular for desulfurizing and/or pre-desulfurizing molten pig iron or molten steel, contains calcium oxide and bitumen.
    Type: Application
    Filed: October 19, 2012
    Publication date: January 29, 2015
    Inventor: Frank Herwig