Patents by Inventor Kirsten L. Rickenbach

Kirsten L. Rickenbach 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: 5135028
    Abstract: An apparatus having a pair of normally closed solenoid valves is retrofitted between hot and cold water inlets and a mixing faucet. Each valve includes a bypass with a mechanically operated valve. A flexible conduit is used to connect each of the valves to the faucet. A switch and an electrical circuit is used to simultaneously open the solenoid valves.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: August 4, 1992
    Inventors: Kirsten L. Rickenbach, Andreas Rickenbach