Patents by Inventor Petra Zellmann

Petra Zellmann 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).

  • Infrared emitter element with cooling tube covered by reflector
    Patent number: 6909841
    Abstract: An infrared emitter element includes: at last one emitter tube made of silica glass, which has two ends; at least one electrical conductor arranged in the emitter tube as a radiation source; a cooling tube made of silica glass, which surrounds the at least one emitter tube spaced therefrom and which is connected to the at least one emitter tube directly at its ends, such that in the region of the electrical conductor at least one flow-supporting channel is formed between the at least one emitter tube and the cooling tube; and a metallic reflector. The cooling tube is completely covered with the reflector on its side facing away from the emitter tube. The infrared emitter element may be used as a flow-through heater, such as a heat exchanger, especially for high-purity fluids.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: June 21, 2005
    Assignee: Heraeus Noblelight GmbH
    Inventors: Sven Linow, Stefan Fuchs, Petra Zellmann
  • Infrared emitter element and its use
    Publication number: 20040175162
    Abstract: An infrared emitter element includes: at last one emitter tube made of silica glass, which has two ends; at least one electrical conductor arranged in the emitter tube as a radiation source; a cooling tube made of silica glass, which surrounds the at least one emitter tube spaced therefrom and which is connected to the at least one emitter tube directly at its ends, such that in the region of the electrical conductor at least one flow-supporting channel is formed between the at least one emitter tube and the cooling tube; and a metallic reflector. The cooling tube is completely covered with the reflector on its side facing away from the emitter tube. The infrared emitter element may be used as a flow-through heater, such as a heat exchanger, especially for high-purity fluids.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 9, 2004
    Applicant: Heraeus Noblelight GmbH
    Inventors: Sven Linow, Stefan Fuchs, Petra Zellmann