Patents Assigned to Miele & Cie
  • Method of galvanizing steel parts
    Patent number: 4046646
    Abstract: A method for coating a steel part wherein the steel part is introduced into an activation bath containing metal salts such as copper and silver salts which are nobler in potential than iron to deposit a layer of the nobler metal on the surface of the steel part. The part is then immersed in a galvanizing bath in which the part is coated with zinc. Preferably, the galvanized steel part is then electrophoretically enamelled.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: September 6, 1977
    Assignee: Miele & Cie
    Inventors: Heinrich Warnke, Friedel Kaup
  • Level control for surface treatment baths
    Patent number: 3941147
    Abstract: A level control device for pickling, degreasing, nickel-plating baths or the like, comprising at least two baths of different specific gravities, wherein the two baths are joined to a connecting pipe and the connecting pipe runs into the bath of lower specific gravity just below the bath level so that level control is possible without pumps or float switches or the like.
    Type: Grant
    Filed: October 5, 1973
    Date of Patent: March 2, 1976
    Assignee: Miele & Cie
    Inventors: Friedel Kaup, Heinrich Warnke
  • Electrophoretic enamelling of ferrous articles
    Patent number: 3935088
    Abstract: A vitreous enamel-coated ferrous article is prepared by (a) pretreating a ferrous article such as by pickling, (b) coating the pretreated ferrous article with a metal whose boiling temperature is above the firing temperature of the enamel, (c) electrophoretically coating the metal-coated article with a vitreous enamel, and (d) firing the enamel.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: January 27, 1976
    Assignee: Miele & Cie
    Inventors: Friedel Kaup, Heinrich Warnke