Patents by Inventor Richard Allen Kirkpatrick, II

Richard Allen Kirkpatrick, 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).

  • Supply current regulator for two-wire sensors
    Patent number: 6118260
    Abstract: A current regulator is provided for a two wire sensor and comprises first and second conductors arranged to provide a sensor output current, a first resistance and a current reference coupled across the first and second conductors, and a second resistance and sensor load terminals coupled across the first and second conductors. An amplifier has first and second inputs and an output. The first input is coupled to a first junction between the first resistance and the current reference, the second input is coupled to a second junction between the second resistance and the sensor load terminals, and the output is connected to the second input. The amplifier controls a first voltage at the first junction to be substantially equal to a second voltage at the second junction.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: September 12, 2000
    Assignee: Honeywell International Inc
    Inventors: Richard Allen Kirkpatrick, II, Mark Robert Plagens