Patents by Inventor Wolfgang Felgentraeger

Wolfgang Felgentraeger 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 and device for pre-cooling brewing liquor
    Patent number: 5787720
    Abstract: The invention relates to a device and a method for pre-cooling brewing liquor using a refrigeration device, the said refrigeration device being designed as an absorption-type refrigeration device, and preferably as a LiBr absorption-type refrigeration device, with an evaporator, an absorber, a generator and a condenser, and the generator being operated with surplus process heat produced in the brewery. Use is preferably made of the water vapour heat which is recovered in the copper vapour condenser and which can be subjected to intermediate storage in an energy reservoir.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: August 4, 1998
    Assignee: Bernhard Lenz
    Inventors: Bernhard Lenz, Wolfgang Felgentraeger