Patents by Inventor Sigurd Andersen

Sigurd Andersen 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).

  • Temperature alarm device for breathing apparatus
    Publication number: 20030164171
    Abstract: A temperature alarm device for a breathing apparatus is described, comprising an air bottle (1) with a main valve (2) to which is connected a hose (3) for supply of air from the air bottle (1) via a reduction valve (4) to a breathing mask (5), wherein the temperature alarm device comprises a temperature controlled sound transmitter that emits a sound when the temperature of the surroundings exceeds a pre-defined temperature. A breathing apparatus comprising this temperature alarm device is also described.
    Type: Application
    Filed: November 26, 2002
    Publication date: September 4, 2003
    Inventor: Sigurd Andersen