Patents by Inventor Karl Dahlgren

Karl Dahlgren 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: 9857803
    Abstract: In some embodiments, a water conservation system may include a main conduit which may be in fluid communication with a bypass conduit via a bypass inlet and a bypass outlet. An inlet isolation valve, a flow control valve, and an outlet isolation valve may be coupled in series on the main conduit. A pressure sensor may be coupled to the main conduit before the bypass conduit inlet and a flow meter may be coupled to the main conduit after the bypass conduit outlet. A processing unit may be in communication with an ambient temperature sensor and also in communication with the flow control valve, the pressure sensor, and the flow meter. The processing unit may operate the flow control valve to provide an unlimited range of programmable rates of water flows that can be achieved automatically and remotely for optimal supply in the facility in which the system is installed.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: January 2, 2018
    Inventors: Daniel Abuda, Karl Dahlgren, Ken Varma