Patents by Inventor Guido Luetsch

Guido Luetsch 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).

  • Patent number: 5983662
    Abstract: The invention provides extreme convenience and flexibility in providing for cooled beverages at inconvenient places and times. This flexibility is provided by the invention's use of a cooling process which is not dependent on chemicals or power sources, that is, the evaporative process which can utilize any type of water: potable, non-potable, brackish, salt, etc. etc. This provides conservation of valuable potable water in locations where potable water is scarce, i.e., hiking and camping trips. In one embodiment, the container structure has holes in the outer wall to facilitate the evaporative process and the to be cooled beverage contained in a standard can is elevated off the container structure floor to also facilitate the evaporative process.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: November 16, 1999
    Inventor: Guido Luetsch