Patents by Inventor Sabine Donath

Sabine Donath 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).

  • Method an device for introducing oxygen into water or aqueous solutions
    Patent number: 6200476
    Abstract: In a process for transferring oxygen or an oxygen-containing gas into water or aqueous solutions in the treatment of water or aqueous solutions, oxygen or an oxygen-containing gas is added to the water or aqueous solution continuously or at intervals through an injector and simultaneously through at least one tube sparger.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: March 13, 2001
    Assignee: Messer Griesheim GmbH
    Inventors: Sabine Donath, Monica Hermans
  • Device to deburr molded parts subject to low-temperature brittleness
    Patent number: 4918876
    Abstract: Molded parts are deburred by being cooled down and treated with an abrasive. The parts are cooled down and circulated by a conveying gas which circulates in a circulation chamber, while the parts are treated with an abrasive introduced into the circulation chamber.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: April 24, 1990
    Assignee: Messer Griesheim GmbH
    Inventors: Sabine Donath, Peter Grund, Peter Holz, Udo Jakobs, Wolfgang Volker
  • Device and method for the surface treatment of cold-embrittled parts
    Patent number: 4637174
    Abstract: Cold-embrittled parts are surface treated by an abrasive jet through the use of an arrangement which includes as a centrifuge wheel. The centrifuge wheel is self-priming and is connected to a granulate collecting tank via a suction pipe with a spray nozzle for low boiling liquefied gas being arranged in the inlet zone of the suction pipe. The resulting abrasive jet pattern is of the same shape and size as the treatment surface.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: January 20, 1987
    Assignee: Messer Griesheim GmbH
    Inventors: Sabine Donath, Peter Holz