Patents by Inventor Herbert Bolter

Herbert Bolter 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).

  • Thermostatically controlled heating arrangement including a heat pump
    Patent number: 4019679
    Abstract: A heating arrangement, in which the circulating heat transfer medium for radiators is heated by condensation of a refrigerant in a heat pump, is controlled by relays in the energizing circuits of the several, independently driven pumping units of the compressor in the heat pump in response to the difference between the temperature of the atmosphere outside the heated area and the temperature of the circulating heat transfer medium to reduce the pumping energy consumed in response to the rising temperature of the heat transfer medium, and thereby to improve the efficiency of the heating arrangement.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: April 26, 1977
    Assignee: Interliz Anstalt
    Inventors: Alfred Vogt, Herbert Bolter