Patents by Inventor Folmer O. Hannibalsen

Folmer O. Hannibalsen 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).

  • Freezer with means preventing the formation of frost
    Patent number: 5165252
    Abstract: The storing space of a freezer (10) communicates with a flexible bag (30) arranged on the outside of the freezer. The bag takes up the volume changes which the air in the space goes through as a consequence of normal temperature oscillation of cooling surfaces (14) in the space. By this, the humidity of ambient air is prevented from being sucked into the space past the lid or door sealing (20) of the freezer and form frost on the cooling surfaces (14).
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: November 24, 1992
    Assignee: Aktiebolaget Electrolux
    Inventor: Folmer O. Hannibalsen