Patents by Inventor Rolf Dellrud

Rolf Dellrud 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: 4850333
    Abstract: A grill comprises a heating chamber (2) for broiling food (18). The heating chamber has located on the sides thereof a respective space (5) which accommodates a heat source (6), such as charcoal. The heat source (6) delivers radiant heat uniformly to the food (18), and the formation of carcinogenic substances as a result of pyrolysis is avoided by constructing the bottom part of the heating chamber in a manner to cool fat which drips down from the broiled food. To this end the bottom part of the heating chamber may be provided with a withdrawable vessel (8) filled with a liquid (9). The heat-source accommodating space (5) is delimited on the heating-chamber side by a net or lattice structure (4) and has a bottom surface (14) which slopes obliquely downwards and inwards towards the liquid-filled vessel (8). Pre-heated combustion air is delivered to the space (5) through a channel (16) location beneath the space. The central part of the grill may have a rectangular or circular cross-sectional shape.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: July 25, 1989
    Assignee: Komfortventilation Teknik AB
    Inventors: Rolf Dellrud, Ulf Hagstrom