Patents by Inventor Tom Nøhr Christiansen

Tom Nøhr Christiansen 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).

  • METHODS FOR CONTROLLING AND DIAGNOSING AN ACTUATOR FOR A LOW POWER SYSTEM
    Publication number: 20220154847
    Abstract: A method of controlling an actuator for a low power system, such as an irrigation system, where the actuator comprises a movable element and an electromagnetic coil for generating a magnetic field for displacing the movable element along the axis of the electromagnetic coil.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 19, 2022
    Inventor: Tom Nøhr Christiansen
  • Two-wire controlling and monitoring system for irrigation of localized areas of soil
    Patent number: 7146255
    Abstract: A two-wire controlling and monitoring system for irrigation of localized areas of soil includes a water pipeline, a plurality of controllable irrigation valves, a plurality of field sensors measuring specific irrigation parameters, and a plurality of localized irrigation control units. Each irrigation control unit has a sensor decoder connected to a specific field sensor and/or a line decoder connected to a specific controllable irrigation valve. The system further includes a controller and power supply unit that applies a first alternating DC voltage signal to a two-wire cable interconnecting the controller and power supply unit and the irrigation control units. The two-wire cable provides power from the controller and power supply unit to each of the irrigation control units, it transmits schedules of instructions to the irrigation control units through the two-wire cable, and it receives the irrigation parameters from the irrigation control units through the two-wire cable.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: December 5, 2006
    Assignee: S-Rain Control A/S
    Inventor: Tom Nøhr Christiansen
  • Two-wire controlling and monitoring system for irrigation of localized areas of soil
    Patent number: 6766221
    Abstract: A two-wire controlling and monitoring system for in particular irrigation of localized areas of soil according to a aspect of the invention comprises a water pipeline, a first plurality of controllable irrigation valves, a second plurality of field sensors measuring specific irrigation parameters, and a third plurality of localized irrigation control units. The third plurality of localized irrigation control units each comprises a sensor decoder connected to a specific field sensor of the second plurality of field sensors and/or a line decoder connected to a specific controllable irrigation valve of the first plurality of controllable irrigation valves. The two-wire controlling and monitoring system further comprises a controller and power supply unit having a set of schedules of instructions and supplying power by applying a first alternating DC voltage signal to a two-wire cable interconnecting the controller and power supply unit and the third plurality of localized irrigation control units.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 20, 2004
    Inventor: Tom Nøhr Christiansen
  • Encoder/decoder of remote controller for water irrigation
    Patent number: D922968
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 22, 2021
    Assignee: S-RAIN CONTROL A/S
    Inventor: Tom Nøhr Christiansen