Patents by Inventor Darrell R. Kaarup

Darrell R. Kaarup 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).

  • Fluid heater apparatus
    Patent number: 4358652
    Abstract: A fluid heater apparatus for providing heated fluid on demand, the apparatus including at least two microwave heating units with coiled tubing disposed in the microwave field and connected to a valving and electrical system wherein heated fluid is supplied alternately from the units thus permitting one unit to heat fluid therein and the other to supply heated fluid therefrom and thereby supply a continuous flow of heated fluid and yet providing no storage facilities for holding heated fluid other than the coiled tubing in the microwave field.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: November 9, 1982
    Inventor: Darrell R. Kaarup