Patents by Inventor Stefan Scroth

Stefan Scroth 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).

  • Publication number: 20150013725
    Abstract: A pair of parallel metal lances is driven by a transversal drive into and out of heat exchanger tubes. The lances are supported by a plurality of spaced apart, retractable door supports so that the transversal drive mechanism can approach the tube sheet of the heat exchanger tubes as closely as possible. A pair of rotational drive motors rotates the lances at a user controllable speed. As the lances are moved into the tubes, the interlocked support doors retract one at a time, sequentially. Similarly, as the lances are withdrawn from the tubes, the support doors close one at a time in an interlocked fashion.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Applicant: AQUAJET LTD.
    Inventors: Christian Geppert, Stefan Scroth
  • Patent number: 8845820
    Abstract: A pair of parallel metal lances is driven by a transversal drive into and out of heat exchanger tubes. The lances are supported by a plurality of spaced apart, retractable door supports so that the transversal drive mechanism can approach the tube sheet of the heat exchanger tubes as closely as possible. A pair of rotational drive motors rotates the lances at a user controllable speed. As the lances are moved into the tubes, the interlocked support doors retract one at a time, sequentially. Similarly, as the lances are withdrawn from the tubes, the support doors close one at a time in an interlocked fashion.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: September 30, 2014
    Assignee: Aquajet Ltd.
    Inventors: Christian Geppert, Stefan Scroth
  • Patent number: 8083865
    Abstract: A pair of parallel metal lances is driven by a transversal drive into and out of heat exchanger tubes. The lances are supported by a plurality of spaced apart, retractable door supports so that the transversal drive mechanism can approach the tube sheet of the heat exchanger tubes as closely as possible. A pair of rotational drive motors rotates the lances at a user controllable speed. As the lances are moved into the tubes, the interlocked support doors retract one at a time, sequentially. Similarly, as the lances are withdrawn from the tubes, the support doors close one at a time in an interlocked fashion.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: December 27, 2011
    Assignee: Aquajet Ltd.
    Inventors: Christian Geppert, Stefan Scroth
  • Publication number: 20100126540
    Abstract: A pair of parallel metal lances is driven by a transversal drive into and out of heat exchanger tubes. The lances are supported by a plurality of spaced apart, retractable door supports so that the transversal drive mechanism can approach the tube sheet of the heat exchanger tubes as closely as possible. A pair of rotational drive motors rotates the lances at a user controllable speed. As the lances are moved into the tubes, the interlocked support doors retract one at a time, sequentially. Similarly, as the lances are withdrawn from the tubes, the support doors close one at a time in an interlocked fashion.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 27, 2010
    Applicant: AQUAJET LTD.
    Inventors: Christian Geppert, Stefan Scroth