Patents by Inventor Lars Hattmann

Lars Hattmann 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).

  • Condenser with integrated deaerator
    Patent number: 6755043
    Abstract: In cooling plants which work with water as both primary and secondary coolant, it is customary for use to be made of both an evaporator and a condenser which must be supplied wi5th water in the form of e.g. a spray for achieving an effective heat exchange, and out of regard for the effectiveness it is necessary for a continuous deaeration of the water to be carried out, which is effected by the sucking of air direct from the condenser, possibly supplemented with an external NCG condenser or by leading the supply water through a pre-deaerator under vacuum. With the invention it has been found possible to configure both the evaporator and the condenser with associated deaeration/pre-deaeration units in a fully integrated manner, namely by mounting a pair of sieve plates in a vacuum container for the dividing of the container into an upper supply- and distribution chamber, a centremost pre-deaeration chamber (one or more), and a bottom chamber in the form of an evaporator- and a condenser chamber respectively.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: June 29, 2004
    Assignee: York Refrigeration APS
    Inventors: Christian Svarregaard Jensen, Lars Hattmann
  • Condenser with integrated deaerator
    Publication number: 20030150233
    Abstract: In cooling plants which work with water as both primary and secondary coolant, it is customary for use to be made of both an evaporator and a condenser which must be supplied wi5th water in the form of e.g. a spray for achieving an effective heat exchange, and out of regard for the effectiveness it is necessary for a continuous deaeration of the water to be carried out, which is effected by the sucking of air direct from the condenser, possibly supplemented with an external NCG condenser or by leading the supply water through a pre-deaerator under vacuum. With the invention it has been found possible to configure both the evaporator and the condenser with associated deaeration/pre-deaeration units in a fully integrated manner, namely by mounting a pair of sieve plates in a vacuum container for the dividing of the container into an upper supply- and distribution chamber, a centremost pre-deaeration chamber (one or more), and a bottom chamber in the form of an evaporator- and a condenser chamber respectively.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 14, 2003
    Inventors: Christian Svarregaard Jensen, Lars Hattmann