John T Lopez
Engineers at Twin Lk Rd, Boulder, CO
License number
Colorado 27897
Issued Date
Nov 18, 1991
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
6844 Twin Lakes Rd, Boulder, CO 80301
Professional information
Method And Apparatus For Dispensing Natural Gas With Pressure Sensor Calibration
US Patent:
5597020, Jan 28, 1997
Filed:
Mar 3, 1995
Appl. No.:
8/400282
Inventors:
Charles E. Miller - Boulder CO
John F. Waers - Longmont CO
James A. Magin - Longmont CO
Randal L. Custer - Longmont CO
John T. Lopez - Boulder CO
John F. Waers - Longmont CO
James A. Magin - Longmont CO
Randal L. Custer - Longmont CO
John T. Lopez - Boulder CO
International Classification:
B65B 3100
US Classification:
141 95
Abstract:
A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the pressure of the CNG in the vehicle tank. An electronic control system connected to the pressure and temperature transducers and to the control valve assembly calculates a vehicle tank cut-off pressure based on the ambient temperature and on the pressure rating of the vehicle tank that has been pre-programmed into the electronic control system, calculates the volume of the vehicle tank and the additional mass of CNG required to increase the tank pressure to the cut-off pressure, and automatically turns off the CNG flow when the additional mass has been dispensed into the vehicle tank. The electronic control system also determines the amount of CNG dispensed through the sonic nozzle based on the upstream stagnation temperature and pressure of the CNG and the length of time the CNG was flowing through the sonic nozzle.
Method And Apparatus For Multiple-Channel Dispensing Of Natural Gas
US Patent:
5653269, Aug 5, 1997
Filed:
Jun 7, 1995
Appl. No.:
8/472991
Inventors:
Charles E. Miller - Boulder CO
John F. Waers - Longmont CO
James A. Magin - Longmont CO
Randal L. Custer - Longmont CO
John T. Lopez - Boulder CO
John F. Waers - Longmont CO
James A. Magin - Longmont CO
Randal L. Custer - Longmont CO
John T. Lopez - Boulder CO
International Classification:
B65B 3100
US Classification:
141 4
Abstract:
A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the pressure of the CNG in the vehicle tank. An electronic control system connected to the pressure and temperature transducers and to the control valve assembly calculates a vehicle tank cut-off pressure based on the ambient temperature and on the pressure rating of the vehicle tank that has been pre-programmed into the electronic control system, calculates the volume of the vehicle tank and the additional mass of CNG required to increase the tank pressure to the cut-off pressure, and automatically turns off the CNG flow when the additional mass has been dispensed into the vehicle tank. The electronic control system also determines the amount of CNG dispensed through the sonic nozzle based on the upstream stagnation temperature and pressure of the CNG and the length of time the CNG was flowing through the sonic nozzle.
Method And Apparatus For Dispensing Natural Gas
US Patent:
5259424, Nov 9, 1993
Filed:
Mar 27, 1992
Appl. No.:
7/858143
Inventors:
Charles E. Miller - Boulder CO
John F. Waers - Longmont CO
James A. Magin - Longmont CO
Randal L. Custer - Longmont CO
John T. Lopez - Boulder CO
John F. Waers - Longmont CO
James A. Magin - Longmont CO
Randal L. Custer - Longmont CO
John T. Lopez - Boulder CO
Assignee:
DVCO, Inc. - Longmont CO
International Classification:
B65B 3100
US Classification:
141 4
Abstract:
A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the pressure of the CNG in the vehicle tank. An electronic control system connected to the pressure and temperature transducers and to the control valve assembly calculates a vehicle tank cut-off pressure based on the ambient temperature and on the pressure rating of the vehicle tank that has been pre-programmed into the electronic control system, calculates the volume of the vehicle tank and the additional mass of CNG required to increase the tank pressure to the cut-off pressure, and automatically turns off the CNG flow when the additional mass has been dispensed into the vehicle tank. The electronic control system also determines the amount of CNG dispensed through the sonic nozzle based on the upstream stagnation temperature and pressure of the CNG and the length of time the CNG was flowing through the sonic nozzle.
Devices, Systems, And Methods For Battery Cell Fault Detection
US Patent:
2014001, Jan 16, 2014
Filed:
Jun 27, 2013
Appl. No.:
13/928963
Inventors:
JOHN T. LOPEZ - BOULDER CO, US
International Classification:
G01R 31/36, H01M 10/48, H02J 7/00
US Classification:
324433, 320107, 429179, 429 90
Abstract:
A battery cell assembly includes a battery cell, a pouch, and a conductive lead. The pouch surrounds the battery cell and includes an inner insulative jacket, an outer insulative jacket, and a conductive foil disposed between the inner and outer insulative jackets. The conductive lead extends through the outer insulative jacket and is electrically coupled to the conductive foil. The conductive lead is configured to electrically couple to battery circuitry for monitoring a voltage on the conductive foil to determine a fault condition. The battery circuitry may include measurement circuitry for measuring the voltage on the conductive foil and logic circuitry for determining a fault condition based on the measured voltage.
Systems And Methods For The Fixation Or Fusion Of Bone
US Patent:
2007015, Jul 5, 2007
Filed:
Jan 16, 2007
Appl. No.:
11/653504
Inventors:
Mark Reiley - Piedmont CA, US
John Lopez - Boulder CO, US
John Lopez - Boulder CO, US
International Classification:
A61F 2/44
US Classification:
623017110
Abstract:
Various bone fixation/fusion devices are sized and configured to be placed across fracture fragments or between bones that are to be fused.
Systems And Methods For The Fixation Or Fusion Of Bone
US Patent:
2011011, May 19, 2011
Filed:
Jan 18, 2011
Appl. No.:
12/930791
Inventors:
Mark A. Reiley - Piedmont CA, US
John T. Lopez - Boulder CO, US
John T. Lopez - Boulder CO, US
International Classification:
A61B 17/56
US Classification:
606 86 R
Abstract:
Various bone fixation/fusion devices are sized and configured to be placed across fracture fragments or between bones that are to be fused.