James S Rutherford, 35Berryton, KS

6741955, May 25, 2004

Mar 5, 2002

10/087729

James M. Rutherford - Cypress TX
Mark K. Ekblad - San Jose CA

Uson, L.P. - Houston TX

G06F 1710

703 2, 703 6, 702 47, 702 98, 73 405 R

A system for determining a leak rate of a device during an adiabatic cooling phase is provided. The system includes a leak rate training system receiving leak rate calibration data, such as pressure data or mass flow data for a device having a known leakage rate. The leak rate training system generates an adiabatic cooling model from the leak rate calibration data, such as by solving a finite difference equation for one or more unknown process variables that are dependent on the adiabatic cooling parameters of the device. The system further includes a leak rate detection system receiving the adiabatic cooling model and leak rate data and determining a leak rate component of the leak rate data using the adiabatic cooling model, such as by using the variable values determined through solving the finite difference model to interpolate between the leak rate calibration data that was gathered using known leakage rates.

7075653, Jul 11, 2006

Apr 29, 2005

11/118871

James M. Rutherford - Cypress TX, US

Heath Consultants Incorporated - Houston TX

G01N 21/61
G01F 1/66

356437, 356432, 25033911, 2503385, 73 405 A, 7386127

A method and apparatus for remote laser-based detection of gas at levels exceeding natural background levels preferably utilizing wavelength modulated tunable diode laser absorption spectroscopy. In a preferred embodiment, background gas and noise are estimated using statistical moving average and variance calculations. Gas concentration length measurements resulting from the spectroscopy are preferably compared in real-time or near-real-time to the sum of the background and noise estimates and an alarm limit to detect gas presence of concern. Gas levels exceeding this detection threshold are preferably indicated by a prolonged output tone with a pitch indicative of the magnitude of the gas measurement, and gas levels below the detection threshold are preferably indicated by silence.

2011010, May 5, 2011

Jan 7, 2011

12/986840

Winston Charles Meyer - Spring TX, US
Michael Zandaroski - Coon Rapids MN, US
Thomas Seifert - Maple Grove MN, US
Scott Ogren - Houston TX, US
James Rutherford - Cypress TX, US
Daniel Kim - Pearland TX, US
Ronald G. Van Gossen - East Bernard TX, US
John Fisher - West Columbia TX, US
Graham Midgley - Kingwood TX, US
Paul Wehnert - Kemah TX, US
Chris Hambrick - League City TX, US

G01F 15/18

13731506

An assembly for maintaining flow between an inlet conduit and an outlet conduit. The assembly may include a first plate having an inlet notch sized to engage the inlet conduit and an outlet notch sized to engage the outlet conduit, and a second plate having an inlet notch sized to engage the inlet conduit and an outlet notch sized to engage the outlet conduit. The assembly may also include a first connecting member coupled to the first plate and the second plate, a bag having at least one glove port coupled to a second connecting member, and means for connecting the first connecting member to the second connecting member.

2011024, Oct 13, 2011

Apr 12, 2010

12/758627

James Rutherford - Cypress TX, US
Paul Wehnert - Kemah TX, US
Steve Chancey - Houston TX, US

G08B 17/10

340632

A method and apparatus for the detection of methane gas including a low-cost low-power infrared methane sensor integrated with a smart energy network endpoint node, a volume corrector, or an electronic data recorder for transmission of alarm conditions and detector data between the instrument and a remote gas utility company. An independent gas calibration/verification cell may be included in the methane detector for periodically testing the functioning and calibration of the infrared sensor. An infrared carbon monoxide sensor and associated calibration/verification cell may also be installed with the methane sensor.

2023006, Mar 2, 2023

Feb 5, 2021

17/797402

- Austin TX, US
James Rutherford - Cypress TX, US

G01N 21/03
G01N 21/3504

Systems, devices, and methods including a modified Herriot cell comprising: a laser configured to generate a single beam; a partially transmissive region (PTR) disposed in at least one of: a first mirror and a second mirror, where a first portion of the single beam is received through the PTR, and wherein a second portion of the single beam is reflected by the PTR; a first detector disposed proximate the PTR, wherein the first detector receives the first portion of the beam, and where the first portion of the beam has traveled a first path length from the laser to the first detector; and a second detector disposed proximate the exit hole, where the second detector receives the second portion of the beam, and wherein the second portion of the beam has traveled a second path length from the laser to the second detector.