Roy P Rasmussen

US Patent:

7129846, Oct 31, 2006

Filed:

Aug 24, 2004

Appl. No.:

10/924569

Inventors:

Roy Martin Rasmussen - Boulder CO, US
Frank W. Hage - Boulder CO, US
Rondal K. Moore - Aurora CO, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO

International Classification:

G08B 19/02

US Classification:

340580, 340601, 244134 R

Abstract:

A de-icing information system processes weather data indicating precipitation rate and temperature to determine a check time for a de-icing fluid. The de-icing fluid remains effective if applied after the check time, and the de-icing fluid may not remain effective if applied before the check time. The de-icing information system transfers the de-icing information indicating the check time.

US Patent:

7191643, Mar 20, 2007

Filed:

Dec 22, 2004

Appl. No.:

11/025214

Inventors:

Roy Martin Rasmussen - Longmont CO, US
John Hallett - Reno NV, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO
The Board of Regents of the University & Community College Systems of Nevada on behalf of Desert Research Institute - Reno NV

International Classification:

G01W 1/00

US Classification:

7317026

Abstract:

A sensor system comprises a first sensor, a second sensor, and circuitry. The first sensor collects non-frozen liquid with a first collection efficiency, but does not collect frozen liquid. The second sensor collects non-frozen liquid with a second collection efficiency and also collects frozen liquid. The first collection efficiency and the second collection efficiency are substantially equivalent. The circuitry maintains the first sensor and the second sensor at a substantially constant temperature. The circuitry determines a measurement of the frozen liquid based on maintaining the first sensor and the second sensor at the substantially constant temperature. In some examples, multiple sensor systems can be used in combination to improve the accuracy of the measurement.

US Patent:

7369053, May 6, 2008

Filed:

Sep 8, 2006

Appl. No.:

11/518328

Inventors:

Roy Martin Rasmussen - Boulder CO, US
Frank W. Hage - Boulder CO, US
Rondal K. Moore - Aurora CO, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO

International Classification:

G08B 19/02

US Classification:

340580, 340601, 234134 R

Abstract:

A de-icing information system processes weather data indicating precipitation rate and temperature to determine a check time for a de-icing fluid. The de-icing fluid remains effective if applied after the check time, and the de-icing fluid may not remain effective if applied before the check time. The de-icing information system transfers the de-icing information indicating the check time.

US Patent:

8505377, Aug 13, 2013

Filed:

Apr 28, 2011

Appl. No.:

13/096831

Inventors:

Roy Rasmussen - Longmont CO, US
John Hallet - Reno NV, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO
Board of Regents of the Nevada System of Higher Education, On Behalf of the Desert Research Institute - Reno NV

International Classification:

G01W 1/00

US Classification:

7317019, 7317016, 7317017

Abstract:

A thermal plate precipitation measurement system () and a method of operating the thermal plate precipitation measurement system () is provided. The thermal plate precipitation measurement system () includes a first thermal plate system (A) with first and second thermal plates (A, A) and a second thermal plate system (B) with first and second thermal plates (B, B). A precipitation rate can be determined by configuring the first and second thermal plates (A, A) of the first thermal plate system (A) at a first temperature and configuring the first and second thermal plates (B, B) of the second thermal plate system (B) at a second temperature different than the first temperature. A differential power consumption between the first and second thermal plates (A, A, B, B) of each of the first and second thermal plate systems (A, B) can be determined and the precipitation rate can be determined based on a difference between the differential power consumption of the first thermal plate system (A) and the differential power consumption of the second thermal plate system (B).

US Patent:

58506195, Dec 15, 1998

Filed:

Nov 15, 1996

Appl. No.:

8/749508

Inventors:

Roy Martin Rasmussen - Boulder CO
Wayne Michael Adams - Boulder CO
Jeff Alan Cole - Louisville CO
Frank William Hage - Boulder CO
Charles Geoffery Wade - Boulder CO

Assignee:

University Corporation for Atmospheric Research - Boulder CO

International Classification:

G06F 1900

US Classification:

702 3

Abstract:

A frozen precipitation accumulation alert system for a target area wherein the system comprises a means and apparatus for measuring at least one meteorological indicator in at least one measurement location proximate to the target area, detecting meteorological structure using radar data from a weather radar over a region that includes the target area, and determining a precipitation accumulation forecast based the meteorological structure and at least one meteorological indicator. The system further includes a means and apparatus for quantifying a precipitation rate of frozen precipitation over time wherein the precipitation rate is one of the meteorological indicators, and generating a view of user selected ones of the meteorological indicators, the meteorological structure, and the precipitation accumulation forecast.

US Patent:

57447110, Apr 28, 1998

Filed:

Nov 1, 1996

Appl. No.:

8/740757

Inventors:

Roy Martin Rasmussen - Boulder CO
John Hallett - Reno NV

Assignee:

University Corporation for Atmospheric Research - Boulder CO
University and Community College System of Nevada, on behalf of Desert
Research Institute - Reno NV

International Classification:

G01W 114

US Classification:

7317021

Abstract:

A winter precipitation measuring system for quantifying the precipitation rate of winter precipitation at a given point on the Earth's surface. The winter precipitation measuring system includes an elongated tube, a thermal plate within the elongated tube, and a method and apparatus for maintaining the thermal plate at a substantially constant temperature relative to a reference plate and for determining a precipitation rate in response to the difference in power consumption required to maintain the thermal plate at a substantially constant temperature.

US Patent:

20200233115, Jul 23, 2020

Filed:

Jan 17, 2019

Appl. No.:

16/250807

Inventors:

- Boulder CO, US
Roy M. RASMUSSEN - Longmont CO, US
Sarah Anne TESSENDORF - Longmont CO, US

Assignee:

University Corporation for Atmospheric Research - Boulder CO

International Classification:

G01W 1/04
G06F 17/10
A01G 15/00

Abstract:

A method and system for determining cloud seeding potential comprises receiving a temperature and a liquid water content (LWC). A seeding index is calculated based on the temperature T, a temperature membership function ƒ(T), the LWC, and a liquid water content membership function ƒ(LWC) at the plurality of grid points to create a seeding index set. A target region potential flag is set based on the seeding index set.