Patents by Inventor Horst Bornefeld

Horst Bornefeld 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).

  • Process for micronizing solid matter in jet mills
    Patent number: 4917309
    Abstract: A process for micronizing solid matters in a jet mill, wherein the solid matters are brought into the jet mill across an injector and wherein the micronization takes place, if necessary, in the presence of milling aids and/or dispersing agents, wherein the solid matters are forcibly supplied to the injector and an apparatus for carrying out the process, the apparatus comprising a dosing means, a forcible entry means, and injector and a jet mill.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: April 17, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Gunter Zander, Horst Bornefeld, Bernd-Michael Holle
  • Process and device for micronizing solid matter in jet mills
    Patent number: 4880169
    Abstract: A process for micronizing solid matters in a jet mill, wherein the solid matters are brought into the jet mill across an injector and wherein the micronization takes place, if necessary, in the presence of milling aids and/or dispersing agents, wherein the solid matters are forcibly supplied to the injector and an apparatus for carrying out the process, the apparatus comprising a dosing means, a forcible entry means, and injector and a jet mill.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: November 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Gunter Zander, Horst Bornefeld, Bernd-Michael Holle
  • Hydrophobic pigments and fillers for incorporation in synthetic resins
    Patent number: 4810305
    Abstract: A modified hydrophobic colored or magnetic pigment or filler comprising a hydrophobic pigment or filler containing from 0.05 to 10% by weight, based on the weight of the pigment or filler, of an organopolysiloxane corresponding to the formula ##STR1## wherein x=0 to 500,y=5 to 500,z=5 to 500,R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 denote, independently of one another, a saturated and/or unsaturated, unbranched or branched alkyl group haviang 1 to 4 carbon atoms and/or an aryl group having 6 to 9 carbon atoms, said aryl group being unsubstituted or alkyl substituted,R.sup.7 is a straight chained or branched alkyl group having 6 to 18 carbon atoms and R.sup.7 and H each amount to at least 3% of the number of groups attached to Si.
    Type: Grant
    Filed: August 4, 1987
    Date of Patent: March 7, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf M. Braun, Peter Panek, Horst Bornefeld, Dieter Rade, Wolfgang Ritter
  • Method of identifying piston rings
    Patent number: 4326907
    Abstract: Piston rings of asymmetrical cross section are identified by providing a surface marking which extends from one flank face of the piston ring to the outer circumferential face (running face) thereof.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: April 27, 1982
    Assignee: Goetze AG
    Inventors: Horst Bornefeld, Hans P. Fort, Werner Engel
  • Method and lathe for machining out-of-round circumferences
    Patent number: 4282784
    Abstract: A method and apparatus for circumferentially machining an out-of-round workpiece in which the workpiece is rotated about its longitudinal axis at an irregular angular speed.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: August 11, 1981
    Assignee: Goetze AG
    Inventors: Otto Feller, Heinz Oepen, Manfred Kuhl, Alois Skrobek, Horst Bornefeld, Hans G. Seiler, Walter Johann
  • Apparatus for deburring edges
    Patent number: 4266373
    Abstract: An apparatus for deburring a circumferential edge of a workpiece, including a rotary deburring tool having an axis of rotation which is substantially parallel to the tangent belonging to the workpiece edge at a location contacted by the deburring tool.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: May 12, 1981
    Assignee: Goetze AG
    Inventors: Horst Bornefeld, Gerd Comberg, Werner Engel, Johannes Neyer