Patents by Inventor Jonathan A. Dantzig

Jonathan A. Dantzig 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: 4159104
    Abstract: The disclosure teaches an improvement in the degassing and filtration of molten metal, especially aluminum, using an apparatus which employs a pair of sequentially placed, removable filter-type plates and at least one fluxing gas inlet positioned therebetween. The first of said filter-type plates is characterized by a plurality of holes which provide a preferential path through which the fluxing gas flows upwardly through the first of said filter plates in countercurrent contact with the melt. Said plate serves to break up said fluxing gas into a fine dispersion to assure its intimate and extensive contact with the melt. Dissolved gases and non-metallic inclusions are thereby abstracted and removed from the melt.
    Type: Grant
    Filed: April 26, 1978
    Date of Patent: June 26, 1979
    Assignee: Swiss Aluminium Ltd.
    Inventors: Jonathan A. Dantzig, Derek E. Tyler
  • Patent number: 4158632
    Abstract: The disclosure teaches an improved filter-type media which is characterized by a plurality of holes of equal size which are substantially larger than the pore size of the filter-type media thereby providing a preferential path through the filter-type media.
    Type: Grant
    Filed: April 26, 1978
    Date of Patent: June 19, 1979
    Assignee: Swiss Aluminium Ltd.
    Inventors: Jonathan A. Dantzig, Derek E. Tyler