Patents by Inventor Hubert Bildstein

Hubert Bildstein 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: 4516255
    Abstract: There is disclosed a rotating anode for use in X-ray tubes having a basic member made of a carbonaceous molybdenum alloy, such as TZM, and a focal path, that is a cathode path, of tungsten or a tungsten alloy, the surface of the basic member outside the focal path being coated at least partially with one or more oxides or a mixture of one or more metals and one or more oxides and having a 10 to 200 .mu.m thick layer of molybdenum and/or tungsten disposed between the surface of the basic member and the coating thereon of oxides or mixture of metal and oxides.
    Type: Grant
    Filed: February 11, 1983
    Date of Patent: May 7, 1985
    Assignee: Schwarzkopf Development Corporation
    Inventors: Helmut Petter, Hubert Bildstein, Fritz Simader
  • Patent number: 4394953
    Abstract: In the manufacture of rotating anodes for X-ray tubes consisting of a basic body made of high-melting metal or its alloys and one or a plurality of graphite parts, the graphite parts (3) are provided with grooves (5) and boreholes (6) before the individual parts are joined by soldering. The grooves (5) mainly having a semicircular cross section are provided in the surface (4) of the graphite parts (3) to be joined by soldering. The boreholes (6) extend through the graphite parts (3) and feed into the grooves (5) approximately vertical to the graphite surface (4). Excessive solder and gases formed during soldering may flow or escape by way of the grooves and boreholes, which produces an improved soldered joint with increased adhesive or bonding strength between the basic body and the graphite parts.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: July 26, 1983
    Assignee: Schwarzkopf Development Corporation
    Inventors: Alfred Sonnweber, Hubert Bildstein, Lambert Egger
  • Patent number: 4158078
    Abstract: A film of electroconductive particles is impregnated into a glass fiber mat and sandwiched between insulating protecting layers and connectable to source of electrical power so that the entire panel develops heat which is then radiated through the protective panels. Conductive strips are sewn or otherwise secured to the edges of the glass fiber mat and the protecting layers can either be flexible plastic material or alternatively can be rigid panels such as plywood, plasterboard or the like.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: June 12, 1979
    Assignee: Huebner Bros. of Canada Ltd.
    Inventors: Lambert Egger, Hubert Bildstein
  • Patent number: 4132917
    Abstract: A rotating X-ray target comprised of a graphite body having brazed thereon a metal band focal track or layer in which the configuration of the surfaces of the graphite base and the metal layer corresponds to an annular segment of a spherical surface and method for preparing same.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: January 2, 1979
    Assignee: Schwarzkopf Development Corporation
    Inventors: Hubert Bildstein, Hubert Petter, Fritz Simader
  • Patent number: 4090103
    Abstract: An X-ray target, preferably a rotating target is disclosed in which at least part of the target surface outside the focal area contains a coating layer of a mixture composed of molybdenum, tungsten, niobium or tantalum, and from 20-60 volume percent of a ceramic oxide.
    Type: Grant
    Filed: March 16, 1976
    Date of Patent: May 16, 1978
    Assignee: Schwarzkopf Development Corporation
    Inventors: Rudolf Machenschalk, Hubert Bildstein
  • Patent number: 4029828
    Abstract: A target for an X-ray tube is coated outside of the area impinged on by electrons with a layer of thermally emissive material comprising 6-20% by weight TiO.sub.2 and 80-94% Al.sub.2 O.sub.3. The coating is applied for example by plasma flame spraying.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: June 14, 1977
    Assignee: Schwarzkopf Development Corporation
    Inventors: Hubert Bildstein, Rudolf Machenschalk, Helmut Petter
  • Patent number: 3939233
    Abstract: A method for the production of spherical particles. The starting material for the particles and organic substances are used to form a liquid aqueous mix from which drops are formed. The starting material is introduced into an aqueous solution in the form of a fine powder. The solution contains condensable or curable organic substances. As the starting material a non-metal, metalloid or a compound of one of these is used.
    Type: Grant
    Filed: November 17, 1972
    Date of Patent: February 17, 1976
    Assignee: HOBEG Hochtemperaturreaktor-Brennelement GmbH
    Inventors: Hubert Bildstein, Karl Knotik, Peter Leichter