Patents by Inventor John O'Brien Evans, II

John O'Brien Evans, II 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).

  • Automatic delivery/drain detection using a level monitoring system
    Patent number: 8378833
    Abstract: A system for monitoring a level of product in a tank to detect one of a delivery and a drain operation is provided. The system comprises a monitor and a data center. The monitor is operably coupled to the tank and adapted to detect the level of product in the tank at a first rate and at a second rate. The data center is in communication with the monitor and adapted to receive a user inputtable threshold level of change. The monitor detects the level of product in the tank at the first rate until the threshold level of change is detected. Thereafter, the monitor detects the level of product in the tank at the second rate. The data center generates an alarm signal to indicate that one of the delivery and the drain has occurred.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 19, 2013
    Assignee: Robertshaw Controls Company
    Inventors: Wojtek Miller, John O'Brien Evans, II
  • Automatic delivery/drain detection using a level monitoring system
    Patent number: 7298278
    Abstract: A system for monitoring a level of product in a tank to detect one of a delivery and a drain operation is provided. The system comprises a monitor and a data center. The monitor is operably coupled to the tank and adapted to detect the level of product in the tank at a first rate and at a second rate. The data center is in communication with the monitor and adapted to receive a user inputtable threshold level of change. The monitor detects the level of product in the tank at the first rate until the threshold level of change is detected. Thereafter, the monitor detects the level of product in the tank at the second rate. The data center generates an alarm signal to indicate that one of the delivery and the drain has occurred.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 20, 2007
    Assignee: Robertshaw Controls Company
    Inventors: Wojtek Miller, John O'Brien Evans, II