Patents by Inventor Ganev Tsviatko

Ganev Tsviatko 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).

  • Apparatus for reducing pitting in copper water pipes
    Patent number: 4943371
    Abstract: Method and an apparatus for producing water with a constant degree of hardness. Hard, cold water is mixed with softened cold water to form a mixed flow with a predetermined hardness degree (of about 6 German hardness degree) resulting from the proportions between the two mutually mixed flows. The apparatus includes a shunt pipe (4), a mixing valve (5) and a flow meter (7). A control circuit (8) controls the setting of the mixing valve (5) in response to the prevailing flow.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: July 24, 1990
    Inventors: Ganev Tsviatko, Fallman Goran