Patents by Inventor Otto Lindig

Otto Lindig 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).

  • Glass-ceramic with specific thermal expansion behavior
    Patent number: 4851372
    Abstract: Base-glasses for glass ceramics cotaining h-quartz solid solution crystals, with a maximum relative length variation of 1.times.10.sup.-5 and a linear thermal expansion coefficient less than 0.1.times.10.sup.-6 /K, comprise (in weight percent) 50-65 SiO.sub.2, 18-27 Al.sub.2 O.sub.3, 0-10 P.sub.2 O.sub.5,0-1 B.sub.2 O.sub.3, 2.5-4 Li.sub.2 O, 0-2 Na.sub.2 O, 0-2 K.sub.2 O, 0-0.5 MgO, 1-5 ZnO, 1-4 CaO, 1-5 BaO, 0-5 TiO.sub.2, 0-3 ZrO.sub.2 and 0-1.5 As.sub.2 O.sub.3.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: July 25, 1989
    Assignee: Schott Glaswerke
    Inventors: Otto Lindig, Wolfgang Pannhorst
  • Crack-resistant, heat-absorbing fusion glasses enabling low processing temperatures for the hermetic encapsulation of electronic components
    Patent number: 4315054
    Abstract: A fusion glass of the series SiO.sub.2 --Al.sub.2 O.sub.3 --Na.sub.2 O--PbO--Fe.sub.3 O.sub.4 consists essentially of 43.0-46.2% by weight of SiO.sub.2 ; 1.0-2.0% by weight of Al.sub.2 O.sub.3 ; 6.2-16.0% by weight of Na.sub.2 O; 33.0-46.1% by weight of PbO; 2.0-4.5% by weight of Fe.sub.3 O.sub.4 ; and a maximum of 0.2% by weight of Sb.sub.2 O.sub.3, all calculated as percent by weight of oxide.These heat-absorbing fusion glasses having a low softening point can be used especially for the hermetic encapsulation of electrotechnical components, especially of conductor contacts operated magnetically as well as nonmagnetically, having coefficients of thermal expansion in the temperature range of 20.degree.-300.degree. C. of about 8.4-12.2.times.10.sup.-6 /.degree.C. and maximum heat absorption at about 1 to 1.5 .mu.m. These glasses have softening temperatures (ST) of about 537.degree. to 601.degree. C., processing temperatures (PT) of about 763.degree. to 879.degree. C.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: February 9, 1982
    Assignee: Schott Glaswerk
    Inventors: Werner Sack, Otto Lindig
  • Low working temperature reed glasses
    Patent number: 4001741
    Abstract: A glass having a softening temperature (E.sub.W) between 596.degree. and 634.degree. C. and a working temperature (V.sub.A) between 792.degree. and 863.degree. C., said glass being produced from a melt having a composition expressed in percentages by weight as follows:______________________________________ SiO.sub.2 50.9 to 60.4, B.sub.2 O.sub.3 1.5 to 11.5, Al.sub.2 O.sub.3 2.5 to 5.3, Li.sub.2 O 0.75 to 3.0, Na.sub.2 O 6.0 to 15.0, K.sub.2 O 0 to 3.8, Li.sub.2 O + Na.sub.2 O 8.0 to 17.3, Li.sub.2 O + Na.sub.2 O + K.sub.2 O 11.0 to 19.7, CaO 0 to 1.5, BaO 0 to 12.9, ZnO 0 to 7.3, PbO 0 to 17.5, BaO + PbO 7.0 to 17.8, Fe.sub.3 O.sub.4 3.3 to 5.0, F.sub.2 0 to 0.7, Sb.sub.2 O.sub.3 0.05 to 0.1, Sugar 0.05 to 0.1.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: January 4, 1977
    Assignee: Jenaer Glaswerk Schott & Gen.
    Inventors: Otto Lindig, Werner Sack