Patents by Inventor Douglas H. Ferguson

Douglas H. Ferguson 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).

  • Monitoring technology
    Patent number: 7304588
    Abstract: An apparatus for monitoring an article or system, particularly an LP or propane tank, includes a transmission unit, a base unit and a host unit. The transmission unit is disposed on or near the article or system and detects at least one parameter related to the article or system and send information related to the detected parameter. The base unit is disposed at a predetermined location remote from the article or system. The base unit receives information related to the detected parameter from the transmission unit. The host unit is disposed at a location remote from the base unit and the transmission unit. The host unit receives information related to the detected parameter from the base unit for management purposes. A method of monitoring an article or system such as a fuel tank is also disclosed.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: December 4, 2007
    Assignee: Independent Technologies, Inc.
    Inventors: Daryl Ingalsbe, Greg Molenaar, Jim Fangmeier, Luke Smith, Jonathan Meed, Douglas H. Ferguson, Tim Siegfried
  • Vibratory system for a sorting flow cytometer
    Patent number: 6746873
    Abstract: A flow cytometry system is disclosed for oscillating the exterior of a flow cytometer nozzle. Oscillating the exterior of a flow cytometer nozzle at selected oscillations or a sweeping range of oscillations disintegrates particles and gas entrapped within the flow cytometer nozzle. Adherents absorbed to the exterior of the flow cytometer nozzle may also be removed. An energy source (1) serves to generate a selected oscillation or range of oscillations. The energy source (1) is connected to a flexible transfer element (2) which conducts the electrical signals to an oscillation system (3). The oscillation system (3) turns the electrical energy from the energy source (1) into mechanical oscillations and is connected to a portable device (4) which disintegrates particles, dislocates gas within the flow cytometer nozzle and cleans the exterior of the flow cytometer aperture.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: June 8, 2004
    Assignees: XY, Inc., DakoCytomation Colorado, Inc., Colorado State University Research Foundation
    Inventors: Kristopher S. Buchanan, Lisa Herickhoff, George Seidel, George C. Malachowski, Matthias J. G. Ottenberg, Douglas H. Ferguson
  • In-line telephony data protector with line condition announce
    Publication number: 20030194059
    Abstract: A data protector for telephony test equipment, comprising a relay for selectively connecting the telephony test equipment to a telecommunication line, and electronic circuitry. The electronic circuitry includes a detector portion adapted for detecting signals within a continuous band of frequencies present on the telecommunication line, and a microcontroller. The microcontroller has a frequency counter function for determining whether data is present on the telecommunication line, a relay connect control function for selectively controlling the relay to connect the telephony test equipment to the telecommunication line, and an alert operator function for producing a signal if the detected frequency is above a predetermined threshold.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 16, 2003
    Inventors: Daryl E. Ingalsbe, Douglas H. Ferguson
  • In-line telephony data protector with line condition announce
    Patent number: 6556661
    Abstract: A data protector for telephony test equipment, comprising a relay for selectively connecting the telephony test equipment to a telecommunication line, and electronic circuitry. The electronic circuitry includes a detector portion adapted for detecting signals within a continuous band of frequencies present on the telecommunication line, and a microcontroller. The microcontroller has a frequency counter function for determining whether data is present on the telecommunication line, a relay connect control function for selectively controlling the relay to connect the telephony test equipment to the telecommunication line, and an alert operator function for producing a signal if the detected frequency is above a predetermined threshold.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: April 29, 2003
    Assignee: Independent Technologies, Inc.
    Inventors: Daryl E. Ingalsbe, Douglas H. Ferguson
  • Controller and display
    Patent number: D515039
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: February 14, 2006
    Assignee: Independent Technologies, Inc.
    Inventors: Daryl Ingalsbe, Douglas H. Ferguson
  • Transmitter antenna
    Patent number: D565534
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: April 1, 2008
    Assignee: Independent Technologies Inc.
    Inventors: Daryl Ingalsbe, Douglas H. Ferguson
  • Transmitter antenna
    Patent number: D573984
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: July 29, 2008
    Assignee: Independent Technologies, Inc.
    Inventors: Douglas H. Ferguson, Daryl Ingalsbe