Patents by Inventor Arne Alin

Arne Alin 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: 4365142
    Abstract: An electrical heating unit comprising mainly an elongate open-ended conduit-pipe element for mounting in a stove, fireplace or like device for burning solid fuel and having a circulation or warm-air system which is separate from the combustion system of the stove, fireplace or like device. The conduit-pipe element is open at the ends thereof and encloses current supply cables for electrical heating elements arranged on the conduit-pipe element. The conduit-pipe element is also provided with a plurality of thermostats and is intended to be mounted in the flow path of the circulation air externally of the hearth space of the stove. Air forced into the conduit-pipe element at the bottom thereof and departing from the conduit-pipe element at the top thereof assists in cooling the current supply cables, even when a fire is lit in the hearth space of the stove or like device.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: December 21, 1982
    Assignee: Luftkonditionering AB
    Inventor: Arne Alin