Patents by Inventor Hellmut Bünsch

Hellmut Bünsch 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).

  • Compound dip process for metal cans
    Patent number: 6846143
    Abstract: Sealant is applied onto or into a folded-seam closure of a metal can. Instead of introducing sealant into the U-shaped lid flange and drying, the compound or sealant is applied to the flange base. The base of the metal can is dipped into a current of fluid sealant or at least brought into contact with it at the surface. This substantially improves the precision of dosing and the exact amount of applied sealant.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: January 25, 2005
    Assignee: Ball Packaging Europe GmbH
    Inventors: Reinhard Kutschan, Hellmut Bünsch
  • Compound dip process for metal cans
    Patent number: 6533517
    Abstract: Sealant is applied onto or into a folded-seam closure of a metal can. Instead of introducing sealant into the U-shaped lid flange and drying, according to the invention the compound or sealant is applied to the base flange, the base of the metal can being dipped into a current of fluid sealant or at least brought into contact with it at the surface. This substantially improves the precision of dosing and the exact amount of applied sealant.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: March 18, 2003
    Assignee: Schmalbach-Lubeca AG
    Inventors: Reinhard Kutschan, Hellmut Bünsch
  • Lead/sulphuric acid-accumulator, separator for lead/sulphuric acid accumulators and process to reduce the formation of colored deposits in a lead/sulphuric acid accumulators
    Patent number: 6403264
    Abstract: An invention is described through which it is possible to reduce in quantity the coloured, mostly dark, and frequently adhesive deposits which form in lead accumulators with separators of filled poly-olefins during formation and operation. The essential feature is that the separators contain as plasticizer a process oil with a CA value of ≦6%, a sulphur content of ≦2000 ppm and a polar part of ≦1%. Preferred process oils to be used as plasticizers are relatively naphthenic and naphthenic oils.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: June 11, 2002
    Assignee: Daramic, Inc.
    Inventors: Hellmut Bünsch, Klaus Heinrich Ihmels, Frank Otto Theubert