Patents by Inventor Helmut Haukelt

Helmut Haukelt 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 the production of agglomerated fuels
    Patent number: 4501593
    Abstract: In the pelletization of particles of carbonaceous material improvements in pellet strength are obtained by applying a first water soluble or swellable thermo-hardening binder and a second binder which is an emulsion of a heavy hydrocarbon in such a way that the concentration of the first binder decreases from the interior to the exterior of the pellet, and the concentration of the second binder increases from the interior to the exterior of the pellet.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: February 26, 1985
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Michael Paersch, Herbert Mrotzek, Helmut Haukelt, Heinz-Wilhelm Schreckenberg
  • Heat storage medium of NaOH-H.sub.2 O-TeO.sub.2
    Patent number: 4372866
    Abstract: A heat storage medium consists of sodium hydroxide and water, the sodium hydroxide concentration being in the range greater than the stoichiometric concentration in sodium hydroxide monohydrate up to and including 80% by weight, the water concentration being in the range less than the said stoichiometric concentration down to and including 20% by weight. Within this particular concentration range the tendency of the sodium hydroxide water system to supercool diminishes after a few cycles. The initial supercooling may be reduced by the addition of tellurium dioxide in amount 0.1 to 2.0% by weight of the combined weight of sodium hydroxide and water.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: February 8, 1983
    Assignee: The British Petroleum Company Limited
    Inventors: Joern Ehlers, Helmut Haukelt
  • Heat storage medium
    Patent number: 4342661
    Abstract: A heat storage medium contains (a) a sodium hydroxide in concentration from 60% by weight up to and including the stoichiometric concentration in sodium hydroxide monohydrate, (b) water in concentration from 40% by weight down to and including the said stoichiometric concentration, and (c) 0.1 to 2.0% by weight of tellurium dioxide, all percentages being expressed as percentages by weight of the total weight of sodium hydroxide and water. The tellurium dioxide reduces the tendency of the sodium hydroxide water system to supercool.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: August 3, 1982
    Assignee: The British Petroleum Company Limited
    Inventors: Jorn Ehlers, Helmut Haukelt