Patents by Inventor Klaus Mirsch

Klaus Mirsch 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: 5922271
    Abstract: A method for the manufacture of dense-sintered glass-ceramic shaped objects which have a coefficient of thermal expansion, .alpha., of -0.5.times.10.sup.-6 /K to 1.8.times.10.sup.-6 /K in the range between 20.degree. C. and 700.degree. C. whereby ceramizable glass powder and/or glass-ceramic powder from the system Li.sub.2 O-Al.sub.2 O.sub.3 -SiO.sub.2 is slip-cast by means of porous molds, dried, pretempered if necessary at temperatures up to 600.degree. C., vitrified and then sintered until the sintering temperature is reached up to relative densities of greater than 0.96 and ceramized, and whereby the glass powder and/or the glass ceramic-powder is prepared in a first grain size fraction of less than 63 .mu.m, in particular less than 45 .mu.m, and in a second grain size fraction of less than 7 .mu.m, in a ratio of the fractions to one another between 2:1 and 4:1, to form a stable, pourable slurry.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: July 13, 1999
    Assignee: Schott Glaswerke
    Inventors: Wolfgang Semar, Janusz Zborowski, Wolfgang Pannhorst, Waldemar Weinberg, Klaus Mirsch, Michael Dunkl, Bartolome Aloy, Werner Waidhas, Monika Burkner