Patents by Inventor Wolfgang Schwetlick

Wolfgang Schwetlick 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: 7014678
    Abstract: According to the invention, oil-charged mill-scale is treated such that the oil is encapsulated or bound therein. An escape of oil on use in a shaft oven first occurs when the ignition point is reached, thus guaranteeing combustion. Agglomeration of said mixture is by pelleting. A mixture comprising the following is preferably used for encapsulation and chemical binding of the oil: A zinc salt and a calcium salt of a saturated or unsaturated fatty acid, a hydrophobic inducing agent, an amino alcohol and ammonia. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b), “A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: March 21, 2006
    Inventor: Wolfgang Schwetlick
  • Patent number: 6926837
    Abstract: The invention relates to a mixture and a process for the treatment of waste materials and the use of the mixture for the treatment of waste materials and waste material treated therewith. The mixture comprises (A) at least one zinc salt of a saturated or unsaturated aliphatic or aromatic carboxylic acid, (B) at least one calcium salt of a saturated or unsaturated aliphatic or aromatic carboxylic acid, (C) at least one hydrophobing agent, (D) at least one amino alcohol and (E) NH3.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: August 9, 2005
    Assignee: Geodur Cis AG
    Inventor: Wolfgang Schwetlick
  • Publication number: 20040245178
    Abstract: The invention relates to a mixture and a process for the treatment of waste materials and the use of the mixture for the treatment of waste materials and waste material treated therewith.
    Type: Application
    Filed: July 15, 2004
    Publication date: December 9, 2004
    Applicant: GEODUR CIS AG
    Inventor: Wolfgang Schwetlick
  • Patent number: 6797049
    Abstract: The invention relates to a mixture and a process for the treatment of waste materials and the use of the mixture for the treatment of waste materials and waste material treated therewith. The mixture comprises (A) at least one zinc salt of a saturated or unsaturated aliphatic or aromatic carboxylic acid, (B) at least one calcium salt of a saturated or unsaturated aliphatic or aromatic carboxylic acid, (C) at least one hydrophobing agent, (D) at least on amino alcohol and (E) NH3.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: September 28, 2004
    Assignee: Geodur Cis AG
    Inventor: Wolfgang Schwetlick
  • Publication number: 20030172777
    Abstract: According to the invention, oil-charged mill-scale is treated such that the oil is encapsulated or bound therein. An escape of oil on use in a shaft oven first occurs when the ignition point is reached, thus guaranteeing combustion. Agglomeration of said mixture is by pelleting. A mixture comprising the following is preferably used for encapsulation and chemical binding of the oil: A zinc salt and a calcium salt of a saturated or unsaturated fatty acid, a hydrophobic inducing agent, an amino alcohol and ammonia. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b), “A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.
    Type: Application
    Filed: February 3, 2003
    Publication date: September 18, 2003
    Inventor: Wolfgang Schwetlick