Patents by Inventor Elke Schmidt

Elke Schmidt 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: 6267009
    Abstract: These capacitive pressure sensor cells have joints between substrates and diaphragms being both pressure and/or tension-proof and high-vacuum-tight and long-term-stable. The sensor cell comprises a ceramic substrate (1) having a cylindrical surface (11), a major surfaces (12, 13). The major surface (12) includes a concave central area (121) merging, in the direction of and up to said cylindrical surface (11), into a convex surface (124) having a vertex line (125) and forming a planar ring surface (126) in its area. An electrode (122) is located in the concave area (121). An electrical connection (123) extends from electrode (122) through the substrate (1) to surface (13). A ceramic diaphragm (5) has a planar inner surface (51) on which an electrode (52) is located and which rests on the ring surface (126) of the substrate (1).
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: July 31, 2001
    Assignee: Endress + Hauser GmbH + Co.
    Inventors: Ulfert Drewes, Elke Schmidt, Andreas Rossberg, Frank Hegner, Thomas Velten
  • Patent number: 5351938
    Abstract: This active brazing serves to braze ceramic parts or single crystals or metal parts or to braze ceramic parts to single crystals or ceramic parts or single crystals to metal parts. In addition to the zirconium-nickel alloy, which is composed of 70 atom % to 85 atom % zirconium and 15 atom % to 30 atom % nickel, it contains titanium. In an apparatus for fabricating a foil (6) from this ternary active-brazing alloy by melt spinning which has a uniform thickness and two surfaces that are as smooth as possible, the alloy, after being melted by high-frequency heating in a cylindrical crucible (1) made completely of a high-temperature-resistant and highly thermally conductive nonmetallic material, particularly of high-density graphite or of boron nitride, is forced through an opening (3) in the bottom of the crucible onto a metal drum (5) of high thermal conductivity rotating at a high circumferential speed, on which the liquid alloy solidifies at a cooling rate on the order of 10.sup.3 to 10.sup.6 .degree. C./s.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: October 4, 1994
    Assignee: Endress u. Hauser GmbH u. Co.
    Inventors: Frank Hegner, Elke Schmidt, Thomas Klahn, Peter Reimann, Heinz Breitenstein, Stephan Messmer
  • Patent number: 5334344
    Abstract: This active brazing preferably serves to braze (join) ((aluminum-)oxide-)ceramic parts or single crystals or metal parts or to braze (join) ((aluminum-)oxide-)ceramic parts to single crystals or ((aluminum-)oxide-)ceramic parts or single crystals to metal parts. In addition to the zirconium-nickel alloy, which is composed of 70 atom % to 85 atom % zirconium and 15 atom % to 30 atom % nickel, it contains titanium.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: August 2, 1994
    Assignee: Endress u. Hauser GmbH u. Co.
    Inventors: Frank Hegner, Elke Schmidt, Thomas Klahn, Peter Reimann, Heinz Breitenstein, Stephan Messmer
  • Patent number: 5098841
    Abstract: The invention relates to a preferably continuous process for the preparation of R- or S-2-hydroxy-4-phenylbutyric acid in very high enantiomeric purity, which comprises reducing 2-oxo-4-phenylbutyric acid with the enzyme D-lactate dehydrogenase from Staphylococcus epidermidis or with the enzyme L-lactate dehydrogenase from bovine heart, respectively, in the presence of NAD(H) and formate or ethanol and formate dehydrogenase or alcohol dehydrogenase, respectively. R-2-hydroxy-4-phenylbutyric acid is a valuable intermediate in the preparation of ACE inhibitors or their precursors.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: March 24, 1992
    Assignee: CIBA-GEIGY Corporation
    Inventors: Oreste Ghisalba, Daniel Gygax, Rente Lattmann, Hans-Peter Schar, Elke Schmidt, Gottfried Sedelmeier
  • Patent number: 4857356
    Abstract: Cereal is combined with more than 50% fruit or vegetable foods by weight for obtaining a nutritional fluid food composition. The cereal component is based upon an enzymatically hydrolyzed cereal in liquid form. The composition does not require including sugar as a further component of the composition and is comprised of at least 10% cereal by weight based on dry matter and in addition to the fruits or vegetables and enzymatically hydrolyzed cereal in liquid form, includes oatmeal, water and oil for providing a desired fat content.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: August 15, 1989
    Assignee: Nestec S.A.
    Inventors: Hubert Reinl, Elke Schmidt